#690 – Clap on, clap off, lights flicker
Dave and Chris discuss bluetooth boards, what happens when batteries leak, new cellular capabilities in iPhones, AC flicker, old oscilloscopes, and more!
The Amp Hour Electronics Podcast
March 12, 20251h 2m
Show Notes
- Meetup.com doubled their prices so the 3H Triangle group moved to Luma (same is true for SF, Seattle)
- Note taking apps after Evernote was gutted: Joplin, Obsidian
- Battery leakage in a DMM
- Causes of leak
- The PCB of a Tonie box with an SD card glued in place. Board has an ESP32-S3. (Product page)
- Design decisions – Latched / unlatched EEVblog video
- Pulse stretcher
- 3rd mode ‘break on open’
- Chris is working on a design inspired by the Apple AirTag
- Golioth just launched Bluetooth support (recorded prior to this announcement)
- It has an nRF52840 and NFC onboard, with a bunch of sensors.
- It won’t work with FindMy
- nroot tag
- Linus video about M4 Mini
- Jeff Geerling talking about storage
- MKBHD iPhone16e
- NTN
- Keyfinders
- The Clapper
- SAW filters
- Dave’s talk at UNSW (months ago)
- How did you learn about oscilloscopes without the internet
- AC power issues – brownout? need to scope power
- Scale of electricity