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Open source stories - Supporting MicroPython - ASK AN ENGINEER clip https://blog.adafruit.com/2021/04/29/happy-8th-birthday-micropython-micropython-micropython-and-adafruit-sponsoring-join-in/ We celebrated MicroPython’s previous birthdays, last year in NYC we were dealing with shutdowns, death, sickness, and more – so we did not get a chance to do a post. But with a new year and 2021 going in the right direction, we are making some noise about the 8th birthday in all the ways we can! Happy Birthday! We have stocked the official PyBoards from Damien, made direct donations to Micropython to support Damien’s work, make and share contributions, based on CircuitPython core on MicroPython and NOW with GitHub sponsors, we did a $5k sponsorship. Their goal is $5k a month in sponsors, so 1 full month is on us. We hope other companies and orgs that use MicroPython will consider doing a monthly or one-time as well. Companies / orgs can now sponsor, so this was Adafruit sponsoring. #adafruit #micropython #circuitpython

JOHN PARK'S WORKSHOP LIVE Parking Assistant Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Pick up 9V batts & clips at Adafruit: https://www.adafruit.com/?q=9v&sort=BestMatch All this time, the 9V battery has been hiding its true identity #adafruit #collinslabnotes Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Making the Metro M4 Express (0:01) https://www.adafruit.com/product/3382 Making CYBERDECK HATS (1:59) https://www.adafruit.com/product/4863 solder fountain (2:19) Oh HI! with PyBadge and a thermal camera (2:41) https://www.adafruit.com/product/4200 https://www.adafruit.com/product/4407 QA (2:55) Feather RP2040 (3:02) https://www.adafruit.com/product/4884 Soldering a threaded standoff onto a tester (3:12) Selective soldering headers onto the Grand Central M4 (3:31) https://www.adafruit.com/product/4064 Using an original tester for the 7-segment backpack (3:48) https://www.adafruit.com/product/1271 E-Ink Bonnet tester (3:59) https://www.adafruit.com/product/4687 Original tester for our HTU21D humidity sensor (4:02) https://www.adafruit.com/product/1899 Testing a new tester, coming soon! (4:05) Hail storm (4:11) #adafruit #manufacturing #madeinnyc ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Adafruit 2.13" Monochrome E-Ink Bonnet for Raspberry Pi - THINK INK (0:06) https://www.adafruit.com/product/4687?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts Premium Female/Male 'Extension' Jumper Wires - 10 x 12" (300mm) (0:39) https://www.adafruit.com/product/5018?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts NeoPixel Reverse Mount RGB LEDs - 10 Pack of SK6812-E (1:02) https://www.adafruit.com/product/4960?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts Simple Water Detection Sensor with Digital Output (2:29) https://www.adafruit.com/product/4965?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts Adafruit I2C QT Rotary Encoder with NeoPixel - STEMMA QT / Qwiic (3:55) https://www.adafruit.com/product/4991?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts ---------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

The wonderful world of Python on hardware! Episode 131 (May 5, 2021). This is our weekly Python video-newsletter-podcast! Ladyada and PT review the Python on hardware news & highlights of the week. The news comes from the Python community, Discord, Adafruit communities and more. It’s part of the comprehensive newsletter we do each week. The video playlist of episodes is here: http://adafru.it/pohepisodes Sign up for the Python on Microcontrollers weekly email newsletter here: https://www.adafruitdaily.com/ Read the newsletters past and present at https://www.adafruitdaily.com/category/circuitpython/ Learn all about CircuitPython here: https://www.circuitpython.org/ https://adafruit.com/circuitpython/ Join us on Discord! https://adafru.it/discord/ Visit the Adafruit shop online, we're open for business - http://www.adafruit.com Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

This week's EYE on NPI is one I've personally got an EYE on for a few months: the TI BQ25792 I2C Controlled, 1-4 Cell, 5-A Buck-Boost Battery Charger. This luxurious charger caught my eye a few months ago and now it's available for purchase and I'm really excited about it. This chip does everything you could ever want from a battery charger. We showed off a charger chip last week that was designed specifically for ultra-low current and voltages - great for TEC's or small solar cells. But what if you want HUGE charging capabilities? The TI BQ25792 has you covered, no matter your application. First great thing - support for any size battery. We have lots of battery packs in the Adafruit shop, and in particular we use 1S batteries - if there's more batteries they are wired in series. But there's lot of folks who are building robotics that require higher voltages, so they have 2S, 3S, or 4S batteries. This charger can handle any of em, and you can configure the battery pack size using a simple resistor on the PROG port. Second great thing - support for just about any voltage power supply input. Once you set the battery size, the output charging voltage has to be 4.2V-per-cell. Normally that means that if you're charging a 1S battery, you'd want a 5V power supply (4.2V plus some headroom). For 2S you want 9V to 12V, etc. Sometimes you'll see buck or boost chargers that let you have a lower or higher voltage. This chip is a buck-boost so you can have anything from 3.6V to 25V input and it will do the right thing to get you the voltage you need to charge the battery pack you have. There's some efficiency-loss on conversion, but much less than a linear supply and you don't have to worry about needing the exact-right power adapter or USB power supply. (https://e2e.ti.com/blogs_/b/powerhouse/posts/universal-and-fast-charging-a-future-trend-for-battery-powered-applications) OK we've done the output, we've done the input. Now lets look at the creamy middle: This charger has our favorite TI-capability: VINDPM and IINDPM - the ability to track the input voltage to make sure it is not drooping from over-draw. Say you have a battery, you want to charge it at 2A, but the wall adapter maxes out at 1A - you don't want the voltage to collapse on you, it's better to charge slowly at 1A than not at all at 2A. VINDPM/IINDPM auto-monitors the voltage and if it starts dropping, it will reduce the current draw. There's also ICO, which attempts to find the max-power-point for the power adapter, which may not be the exact same thing since there's different buck-boost efficiencies at different voltages. For when you're using USB for power, the charger can auto-detect the 'Apple-style' resistors used to set the max-draw current available. (In theory, we acknowledge it's probably better to just VINDPM/IINDPM when possible but we figure it's also polite to stick to the max-current-draw set by the chargers. Finally, there is an "OTG" mode where the converter 'turns around' and can be a buck-boost that runs off the battery to charge another device. Really a wonderful chip with a lot of capabilities and looks like no matter what it is you're trying to charge or power! I'm ordering some BQ25792 today for a new design I'm working on. From the looks of this datasheet, TI really stepped it up here (pun intended!) to make a battery charger everyone will love. Check out TI's video for a lot more details (https://www.youtube.com/watch?v=Wjk5YWrt8Ww) The BQ25792 is stock right now, for immediate shipment from Digi-Key (https://www.digikey.com/en/products/detail/texas-instruments/BQ25792RQMR/13577777) See on Digi-Key at https://www.digikey.com/short/3q2mnt5t

SHOW and TELL 5/5/2021 #ShowandTell

This week we're upgrading lemon keycaps with vinyl decals and chatting about fuzzy skin slicing. Prototyping an update to the NeoTrinkey case and celebrating May the Fourth with the Darksaber and Baby Yoda for Timelapse Tuesday. Two Community Makes to end the show, it’s farout! Learn Guide https://learn.adafruit.com/qtpy-lemon-mechanical-keypad-macropad/ Layer by Layer – Ideation of a Lemon https://youtu.be/5ZEGOkDrX_E QT Py RP2040 https://www.adafruit.com/product/4900 Kailh Mechanical Key Switches https://www.adafruit.com/product/4955 NeoPixel Jewel https://www.adafruit.com/product/2226 Neo Trinkey SAMD21 https://www.adafruit.com/product/4870 PropMaker Lightsaber Kit https://www.adafruit.com/product/4860 Timelapse Tuesday: Grogu Baby Yoda with Pram Ornament – Steven Smith https://www.thingiverse.com/thing:4682291 https://youtu.be/2_a3gEVn6Hg Community Makes https://cults3d.com/en/3d-printing/guardian-robot-terrako-hyrule-warriors terrako robot https://twitter.com/ehippy/status/1387633224600326144?s=21 funhouse stand Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Electromagnets at Adafruit: https://www.adafruit.com/?q=Electromagnet&sort=BestMatch A brief introduction to the electromagnet #adafruit #collinslabnotes Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

ASK AN ENGINEER 5/5/2021 LIVE! #adafruit #askanengineer #diy Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Find your flex piezo at Adafruit: https://www.adafruit.com/product/4931 Did you know they make pliable #piezo sensors? Time to put them to good use. #adafruit #collinslabnotes #piezoelectric Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

This new upcoming board is a I2C-compatible Rotary Encoder, and is powered with a SAMD09 processor running the seesaw firmware https://github.com/adafruit/seesaw To program it we use another SAMD board, this time a Metro M0, to run SWD DAP code https://github.com/adafruit/Adafruit_DAP that programs the chip and then runs the I2C test. We know it works when the NeoPixel goes rainbow! #adafruit #i2c #neopixel Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

#adafruit #newproductpicks Re-recorded version sorry for the technical difficulties with the livestream! https://www.adafruit.com/product/4978 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Raspberry Pi Pico RP2040 in stock, but won't be for long! GO GET'EM ! https://www.adafruit.com/pico Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Watch from inside the product page for a 50% discount during the livestream only: https://www.adafruit.com/product/4978 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

We noticed a few synth-makers getting worried about not being about to source TL074 quad op-amps! https://twitter.com/theavalkyrie/status/1381800012162666497 https://twitter.com/otdispace/status/1382920010042081283 We thought we'd spend this Great Search looking at the TL074 - why its so great and what to look for in an alternative. We asked 'guest' - the co-designer of the x0xb0x to drop some knowledge on us: the 074 is pretty much the toyota corolla of opamps. its not the best at anything in particular, but pretty good at everything. its the second cheapest opamp out there, comes in dip and soic, has relatively low current consumption, low distortion, and reasonable bandwidth and slew rate. the noise is ok-ish low, but the thing that really makes it an all around performer is the low bias current. its down in the pA range, which means you can use it for S/H or VCO,VCF, etc that require a range of currents down to the nAs. a lot of people used the LM358 because it is the cheapest opamp, but it has high bias current. the 074 can also handle high voltage rails which helps with SNR. it was designed for audio use, and was one of the first real mass market opamps back in the late 70s (if i recall correctly). the 741 was the first, and this was meant as an improvement over that. the 074 and 084 were made at the same time, and 074s were selected for lower noise, better distortion, and lower offset voltage, and then marketed at the audio market. the 084 was sold to everyone else. Who doesn't love the TL074? Apparently a lot of people - so let's look at a backup-option. It may not be as cheap/good but maybe it'll be in stock! See on Digi-Key at https://www.digikey.com/short/85mv3mrm

3D Print a Lemon Mechanical Keypad featuring the QT PY RP2040 from Raspberry Pi! Guide: https://learn.adafruit.com/qtpy-lemon-mechanical-keypad-macropad Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Shop for parts to build your own DIY projects http://adafru.it/3dprinting 3D Printing Projects Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOWD2dJNRIN46uhMCWvNOlbG 3D Hangout Show Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVgpmWevin2slopw_A3-A8Y Layer by Layer CAD Tutorials Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVsMp6nKnpjsXSQ45nxfORb Timelapse Tuesday Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVagy3CktXsAAs4b153xpp_ Connect with Noe and Pedro on Social Media: Noe's Twitter / Instagram: @ecken Pedro's Twitter / Instagram: @videopixil ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Subscribe to Adafruit on YouTube: http://adafru.it/subscribe Adafruit Monthly Deals & FREE Specials https://www.adafruit.com/free?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Join our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtell Watch our latest project videos: http://adafru.it/latest?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting 3DThursday Posts: https://blog.adafruit.com/category/3d-printing?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting New tutorials on the Adafruit Learning System: http://learn.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Music by Bartlebeats https://soundcloud.com/adafruit -----------------------------------------

Breakout for Mechanical Keyswitches with undlit NeoPixel action and hot swap sockets. https://www.adafruit.com/product/4978 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Find ItsyBitsy at Adafruit: https://www.adafruit.com/product/4888 Getting acquainted with the newest ItsyBitsy board #adafruit #collinslabnotes Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Visit the Adafruit shop online - http://www.adafruit.com Every week we'll 3D print designs from the community and showcase slicer settings, use cases and of course, Time-lapses! Grogu Baby Yoda with Pram Ornament Steven Smith https://www.thingiverse.com/thing:4682291 CR10S Pro Green PLA 7hr 07mins X:177 Y:180 Z:68mm .2mm layer / .4mm nozzle 10% Infill / 6mm retract 210C / 60C 6g 90mm/s ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Shop for parts to build your own DIY projects http://adafru.it/3dprinting 3D Printing Projects Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOWD2dJNRIN46uhMCWvNOlbG 3D Hangout Show Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVgpmWevin2slopw_A3-A8Y Layer by Layer CAD Tutorials Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVsMp6nKnpjsXSQ45nxfORb Timelapse Tuesday Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVagy3CktXsAAs4b153xpp_ Connect with Noe and Pedro on Social Media: Noe's Twitter / Instagram: @ecken Pedro's Twitter / Instagram: @videopixil ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Subscribe to Adafruit on YouTube: http://adafru.it/subscribe Adafruit Monthly Deals & FREE Specials https://www.adafruit.com/free?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Join our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtell Watch our latest project videos: http://adafru.it/latest?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting 3DThursday Posts: https://blog.adafruit.com/category/3d-printing?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting New tutorials on the Adafruit Learning System: http://learn.adafruit.com/?utm_source=youtube&utm_medium=videodescrip&utm_campaign=3dprinting Music by Bartlebeats https://soundcloud.com/adafruit -----------------------------------------

Notes document is available here: https://github.com/adafruit/adafruit-circuitpython-weekly-meeting/blob/master/2021/2021-05-03.md Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Caption contest! RP2040 boards! Tweet, comment, etc. we have 4 boards that have the Raspberry Pi RP2040, come up with a great caption, we'll pick the winner weds may 5th and if it's your, you get to pick one of the boards and we send to you! please use the tag #adafruitrp2040cc Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ ----------------------------------------- #adafruit #raspberrypi

What is BundleFly? Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Hey folks, in this video I'm chatting about how I came up with the idea of the lemon keypad. Quick look at using the Pattern on Path feature in Fusion 360 and checking out some sources where I got the inspiration from. Lemon Keypad Build Guide https://learn.adafruit.com/qtpy-lemon-mechanical-keypad-macropad/ Cherry MX switch on GrabCAD https://grabcad.com/library/cherry-mx-switch-2 3D Printing Projects Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOWD2dJNRIN46uhMCWvNOlbG 3D Hangout Show Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVgpmWevin2slopw_A3-A8Y Layer by Layer CAD Tutorials Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVsMp6nKnpjsXSQ45nxfORb Timelapse Tuesday Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVagy3CktXsAAs4b153xpp_ Milling Monday https://www.youtube.com/playlist?list=PLjF7R1fz_OOVL48weqeHiu7aw-_sPhCSA Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

This week's Desk of Ladyada is a little light on hardware, as we spent some of the weekend outside and the rest on some software hacking! We used to get very nice pinout diagrams made for our boards by a fellow named Pighixxx. They ended up doing a crowdfunding project that didn't work out and they stopped replying to emails. We like having pinout diagrams but also know that if it's too hard, we won't keep up. Check out Bill Binko's video for a manual technique https://blog.adafruit.com/2019/07/11/automating-the-making-of-beautiful-pinout-diagrams-for-microcontroller-boards-documentation-at_makers/ Much like our Fritzing tool which can generate 99%-ready fritzing objects, having an automated way is best! We looked at the Sparkfun Graphical Datasheet tool (https://github.com/sparkfun/Graphical_Datasheets) and its a step in the right direction - but we didn't want to have to create a CSV for each board because I am very lazy! So we're experimenting with using the Fritzing file, circuitpython pin file, and a single chip-pinout spreadsheet to help us get something 'good enough' even if it isn't as beautiful as the Pighixxx ones. I'll talk about some of the tools we ended up using and why we still need a human to wrap it up. We also made the first draft of an RP2040-powered 3x4 macro pad with rotary encoder and OLED that we'll show off. The Great Search - Alternatives to TL074 Op-Amps! https://www.digikey.com/short/85mv3mrm We noticed a few synth-makers getting worried about not being about to source TL074 quad op-amps! https://twitter.com/theavalkyrie/status/1381800012162666497 https://twitter.com/otdispace/status/1382920010042081283 We thought we'd spend this Great Search looking at the TL074 - why its so great and what to look for in an alternative. We asked 'guest' - the co-designer of the x0xb0x to drop some knowledge on us: the 074 is pretty much the toyota corolla of opamps. its not the best at anything in particular, but pretty good at everything. its the second cheapest opamp out there, comes in dip and soic, has relatively low current consumption, low distortion, and reasonable bandwidth and slew rate. the noise is ok-ish low, but the thing that really makes it an all around performer is the low bias current. its down in the pA range, which means you can use it for S/H or VCO,VCF, etc that require a range of currents down to the nAs. a lot of people used the LM358 because it is the cheapest opamp, but it has high bias current. the 074 can also handle high voltage rails which helps with SNR. it was designed for audio use, and was one of the first real mass market opamps back in the late 70s (if i recall correctly). the 741 was the first, and this was meant as an improvement over that. the 074 and 084 were made at the same time, and 074s were selected for lower noise, better distortion, and lower offset voltage, and then marketed at the audio market. the 084 was sold to everyone else. Who doesn't love the TL074? Apparently a lot of people - so let's look at a backup-option. It may not be as cheap/good but maybe it'll be in stock! #adafruit #digikey #thegreatsearch Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Did you know the SAMD51 has a PCC (parallel capture) peripheral, for reading in camera/video data? that's right, you can directly wire up OV7670/OV2640-like cameras to a SAMD51 and then read out image data into a RAM buffer. We just got support into CircuitPython as well, so we can read a buffer, as seen here, then pipe it back out over SPI to a TFT. Could be great for image recognition, tinyML, DIY cameras, IoT monitoring, etc! The camera almost-perfectly plugs into a Grand Central, you have to cut the two pins for 3V/GND and rewire them, as well as adding I2C pullups. Check out the library here https://github.com/adafruit/Adafruit_CircuitPython_OV7670 #adafruit #circuitpython #python Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Raspberry Pi Compute Module 4 - perfect for embedding into products or projects https://www.adafruit.com/product/4791 #adafruit #raspberrypi #compute Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

These inexpensive camera modules made a great test-bed for adding basic camera functionality for the SAM D51 and RP2040 microcontrollers. What kind of image capture & processing apps do you envision doing with CircuitPython? #adafruit #python #circuitpython Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

#circuitpythonparsec Use buttons and switches on your microcontroller by digital input pin using CircuitPython's digitalio library. *Please note: "The parsec is a unit of length used to measure the large distances to astronomical objects outside the Solar System, approximately equal to 3.26 light-years." https://en.wikipedia.org/wiki/Parsec Visit the Adafruit shop online - http://www.adafruit.com Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Find potentiometers at Adafruit: https://www.adafruit.com/?q=potentiometer&sort=BestMatch Potentiometers are all around us – you probably use them more often than you realize #adafruit #collinslabnotes Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Join Scott today as he answers questions from the chat and works on the MicroPython 1.13 merge. Scott is sponsored by Adafruit to work on CircuitPython. Support them, and by extension me, by purchasing hardware from https://adafruit.com Chat with me and lot of others on the Adafruit Discord at https://adafru.it/discord. Deep Dive happens every week. Normally Fridays at 2pm Pacific but occasionally shifted to Thursday at 2pm. Typically goes for two hours or more. Questions are welcome. 0:00 Getting started and hellos 5:00 housekeeping 5:50 NeoTrinkey 11:00 trying to load circuit python on my new metro esp32-s2, but the firmware doesn't seem to update since I don't see it mount 13:39 pick up where scott left off… 13:59 Oxide Computer exploit 15:56 Micropython & CircuitPython relationship 16:20 Micropython 8 years old - happy birthday! (April-29) 19:43 adafruit readme on github 20:03 BNO055 project see forums.adafruit.com 21:56 Interrupts/threading MP vs.CP 24:59 - memory related usage 27:25 CircuitPython libs just work cross platform, like using a LoRa RF modem on a RasPi with Blinka. 28:45 Can CircuitPython run on the Adafruit Feather boards? - see circuitpython.org/downloads 29:33 learning regular Python helps learning CircuitPython 31:27 Merge 1.12 completed - pull request 32:10 Thanks Jeff E. 32:35 anyone been able to get circuitpython working on a soft FPGA RISC-V? 33:33 Dan’s pull request for USB stuff! 34:18 - status update ?.merge MP 1.10 ….1.15 into ( CP 7.0 ) 38:40 Sublime merge process description 39:48 VS Code 41:48 forking... making a copy and modding from there, and merging you bring in changes from a newer version of what you forked from? 42:49 pycharm ? 43:35 contributing to github guide 43:57 expanding on 1.12 pull request 45:45 merging… 54:04 meld is free tool similar features 56:15 MP_ERROR_TEXT 57:50 using beyond compare right now to compare two 8GB binary files. 59:23 Source Tree, Visual Studio 1:04:30 Is there an Adafruit BMP280 eagle library? - need to check product… 1:07:20 GC collect - assign 0 to support collecting 1:09:20 under 200 files to merge left 1:14:50 assign 0, then gc vs. del for freeing memory 1:17:09 using del() to unimport 1:17:64 ​Does CircuitPython run any hardware CI to make sure there are no regressions on supported boards? 1:19:35 pairheap - we probably want it :-) 1:26:00 we don’t use mod microsocket 1:28:15 Jeff found places where we don’t have tests… 1:29:12 mp thread 1:31:00 frzqstr.py 1:32:44 in the py folder! 1:36:45 CP has more support in ‘struct’ and turn off non-standard stuff 1:42:35 py/compile.c # emit bytecode 1:45:35 walrus operator? PN_annassign 1:48:50 native mpy files? … emitbc.c # emit bytecode 1:52:25 yes - it’s nice to merge each milestone 1:54:32 py/gc.c 1:57:16 CP has f-string support, MP doesn’t 1:59:59 CP gets full version from github 2:00:30 py/malloc.c 2:02:15 “after I’m done with this, it is not going to compile, that’s now how it works” 2:06:07 py/modstruct.c ( we don’t use it I think ) 2:07:10 two spots where we want to say circuitpython… 2:09:12 some things that don’t belong in the py folder… 2:11:50 community broadband… 2:14:25 FCC interested in learning users broadband speeds https://broadbandmap.fcc.gov/#/ 2:16:57 py/obj.h (is a big file) 2:19:31 a while ago they changed the capitalizations of things…. 2:28:31 six to go 2:32:30 py/objmodule.c - 99 left 2:34:20 wrap up / thanks

Did you know the RP2040 PIO periperals can be configured for reading in camera/video data? that's right, you can directly wire up OV7670/OV2640-like cameras to a RP2040/Pico and then read out image data into a RAM buffer (thankfully theres a ton of RAM on the RP2040). We just got support into CircuitPython as well, so we can read a buffer, as seen here, then pipe it back out over SPI to a TFT. Could be great for image recognition, tinyML, DIY cameras, IoT monitoring, etc! We built up a Perma-Proto for swapping different cameras in for testing. We're getting a little posterization-effect, which looks cool but is not on purpose, hopefully will get it sorted out very soon! Check out the library here https://github.com/adafruit/Adafruit_CircuitPython_OV7670 Visit the Adafruit shop online - http://www.adafruit.com #adafruit #circuitpython #raspberrypi ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

FunHouse Water Alarm JPPPoW Recap The CircuitPython Parsec Where's Lars? much more! ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

This week's EYE ON NPI smells so sweet, it's the BME688 digital nose gas sensor from Bosch! (https://www.digikey.com/en/product-highlight/b/bosch-sensortec/bme688-4-in-1-environmental-sensing) The BME680 is a very nice gas sensor released a few years ago, and remains the only temperature-humidity-pressure-gas sensors that we've ever seen. Small and easy to use, at Adafruit we've sold tens of thousands of BME680 sensors on breakout boards so we're very excited to see the next-generation of BME68x chips arriving and in stock at Digi-Key. The BME688 is completely back compatible to the BME680, in fact over the weekend we added support to the latest Bosch C API (https://github.com/adafruit/Adafruit_BME680) So, like the BME680 you get a high-grade temperature, humidity and pressure sensor that can measure humidity with ±3% accuracy, barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter or better accuracy! I'm going to order some ASAP to turn into a breakout board, it looks like this chip is fully pin-compatible with the BME680 so if you need an example circuit that we know works, check out our open source BME680 design. (https://github.com/adafruit/Adafruit-BME680-PCB) If you're looking for a great all-in-one sensor, and particularly if you've been using the BME680 and want to upgrade, there's thousands of BME688 stock at Digi-Key right now at a great price! (https://www.digikey.com/short/0vjw0b8q) Order today and you will be smelling success by tomorrow afternoon. See on Digi-Key at https://www.digikey.com/short/0vjw0b8q Bosch Video https://www.youtube.com/watch?v=xcZKKNrBt2g

Breadboards are great - except when they’re not. Consider grabbing some versatile perfboard/protoboard: https://www.adafruit.com/category/124 #adafruit #collinslabnotes Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Adafruit 2.13" Monochrome eInk / ePaper Display FeatherWing - 250x122 Monochrome with SSD1680 (0:06) https://www.adafruit.com/product/4195?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts 1.25mm Pitch 2-pin Cable 20cm long 1:1 Cable - Molex PicoBlade Compatible (0:53) https://www.adafruit.com/product/4922?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts 1.25mm Pitch 5-pin Cable 20cm long 1:1 Cable - Molex PicoBlade Compatible (0:53) https://www.adafruit.com/product/4925?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts Adafruit MCP9808 High Accuracy I2C Temperature Sensor Breakout - STEMMA QT / Qwiic (2:57) https://www.adafruit.com/product/5027?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts Adafruit HTU31 Temperature & Humidity Sensor Breakout Board - STEMMA QT / Qwiic (3:36) https://www.adafruit.com/product/4832?utm_source=youtube&utm_medium=videodescrip&utm_campaign=newproducts ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

The news from Adafruit in New York. Broadcast April 28, 2021 https://www.adafruit.com/new These are items or concept products that may/might/could be introduced into the Adafruit store in the future (or not)! It's not out yet, so please don't ask questions or ask when it'll be available.... Check out the Adafruit store for all the great products that are available and for coming soon products you can sign up to be notified when they are in stock. https://www.adafruit.com/new Visit the Adafruit shop online - http://www.adafruit.com - now shipping! Also visit Digi-Key for Adafruit products at http://www.digi-key.com/ ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

The wonderful world of Python on hardware! Episode 130 (April 28, 2021). This is our weekly Python video-newsletter-podcast! Ladyada and PT review the Python on hardware news & highlights of the week. The news comes from the Python community, Discord, Adafruit communities and more. It’s part of the comprehensive newsletter we do each week. The video playlist of episodes is here: http://adafru.it/pohepisodes Sign up for the Python on Microcontrollers weekly email newsletter here: https://www.adafruitdaily.com/ Read the newsletters past and present at https://www.adafruitdaily.com/category/circuitpython/ Learn all about CircuitPython here: https://www.circuitpython.org/ https://adafruit.com/circuitpython/ Join us on Discord! https://adafru.it/discord/ Visit the Adafruit shop online, we're open for business - http://www.adafruit.com Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

Full tutorial: https://learn.adafruit.com/sound-reactive-sunflower-baby-crib-mobile-with-bluetooth-control Make a beautiful hanging mobile with lights for your nursery. This mobile is so cute and so much fun that older kids and adults will definitely enjoy it as well. The included sample code has around 8 different animated color modes that you can control via bluetooth using Adafruit's free BlueFruit app. It also has a sound reactive mode, where the lights will pulse in time to music or voices in the room. This is a fairly easy build that requires just a little bit of tight soldering on the LED strip. The sunflowers are made from craft foam and felt that you can cut by hand or with a vinyl cutting machine. This project uses just a half-meter of very high density NeoPixels, making for gorgeously buttery smooth animations. Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

This week we're looking at the guide for the Lemon Keypad with QT Py RP2040. Prototyping an LED torch using the NeoTrinkey. A crabby buddy for Timelapse Tuesday and Community Makes to end the show, excellent! LearnGuide https://learn.adafruit.com/qtpy-lemon-mechanical-keypad-macropad/ Layer by Layer – Fuzzy Skin https://youtu.be/89oRp64lFfU QT Py RP2040 https://www.adafruit.com/product/4900 Kailh Mechanical Key Switches https://www.adafruit.com/product/4955 NeoPixel Jewel https://www.adafruit.com/product/2226 Neo Trinkey SAMD21 https://www.adafruit.com/product/4870 Timelapse Tuesday: Flexi Hermit Crab– DESSEN https://cults3d.com/en/3d-model/game/hermit-crab-flexi-cute-semi-realistic https://youtu.be/I_yB_6Te40k Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

SHOW and TELL 4/28/2021 #ShowandTell David (Digi-Key)@0:50 - General Grievous, innovation handbook Chris @6:28 - IoT IR Remote Noe and Pedro @10:16 - QTPy and neopixel lemon keypad John Park @12:14 - Adafruit FunHouse motion detection Scott @15:10 - MicroPython CircuitPython update Charlyn @20:28 - LED rings Liz @22:14- pinkasaurus rex guitar Bill @23:17- neotrinky password safe

ASK AN ENGINEER 4/28/2021 LIVE! #adafruit #askanengineer #diy Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Get your magnet film at Adafruit: https://www.adafruit.com/product/4047 Magnets are an underappreciated form of entertainment – and magnet film makes them better #adafruit #collinslabnotes Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

Find breadboards at Adafruit: https://www.adafruit.com/category/462 Take care of your jumper wires and your breadboard will take care of you #adafruit #collinslabnotes Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

#adafruit #newproductpick JP’s Product Pick of the Week Recap: Neo Trinkey It's a USB key, runs CircuitPython and Arduino, cap touch switches, NeoPixels, is your best friend. It's made by Adafruit, not Ban Dai. https://www.adafruit.com/product/4870 Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

In this tutorial we'll take a look at using the fuzzy skin feature in CURA. I demo the Fuzzy Skin Outside Only feature and talk about how I optimized the 3D model in order to avoid unwanted geometry. I also quickly take a look at slicing a cauldron and display stand. LearnGuide https://learn.adafruit.com/qtpy-lemon-mechanical-keypad-macropad/ QT Py RP2040 https://www.adafruit.com/product/4900 Kailh Mechanical Key Switches https://www.adafruit.com/product/4955 NeoPixel Jewel https://www.adafruit.com/product/2226 Halloween Cauldron https://learn.adafruit.com/cpx-cauldron/3d-printing MagTag Christmas Stand https://learn.adafruit.com/magtag-daily-christmas-countdown/3d-printing Birdhouse by Flowalistic https://www.thingiverse.com/thing:2711791 Cura Fuzzy Skin and Ironing on 3D Prints by CHEP https://www.youtube.com/watch?v=gh5wC4Ti95s Fuzzy Skin Feature in Cura - Add Texture to your 3D Prints! by Andrew Sink https://www.youtube.com/watch?v=V0idzsa41LQ 3D Printing Projects Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOWD2dJNRIN46uhMCWvNOlbG 3D Hangout Show Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVgpmWevin2slopw_A3-A8Y Layer by Layer CAD Tutorials Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVsMp6nKnpjsXSQ45nxfORb Timelapse Tuesday Playlist: https://www.youtube.com/playlist?list=PLjF7R1fz_OOVagy3CktXsAAs4b153xpp_ Milling Monday https://www.youtube.com/playlist?list=PLjF7R1fz_OOVL48weqeHiu7aw-_sPhCSA Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------