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Show Notes
This weekend was super bright and sunny, which made it a great time to test out a whole mess of light sensors. We got in our samples from last weeks' chat, the ultra-low-cost LTR-329 (https://www.digikey.com/short/jvn94ncp). This sensor would make a good digital-only alternative to the ALS-PT19 (https://www.digikey.com/short/n550jdwp) 'analog' light sensor. And 'while we were there' we also picked up the LTR-303 (https://www.digikey.com/short/pmr33330), which is very similar to the 329 but has an IRQ output. Thankfully both use similar packages to the GUVx and LTR-390, respectively, which means we were able to recycle existing prototype PCBs to test em out. And then we also wrapped up a driver for the GUVB-C31SM UV sensor (https://www.digikey.com/short/tfzc9h7t) and tested it outside. The UVI calculation seems off, the datasheet is a lil 'so-so' on details but we are getting data so it's mostly just a matter of figuring out how to do the data scaling.
The Great Search - Gas Sensors to replace the CCS811
https://www.digikey.com/short/rnhnfdt7
We've carried the CCS811 as a breakout board (https://www.digikey.com/short/87r2tq3f) for a while now, but the sensor itself is now discontinued! (https://www.digikey.com/short/0n58n301) We checked out the official replacement, ENS160 (https://www.digikey.com/short/db4fqrv3) but it's not in stock right now. We stock a few other gas sensors but it's a good time for us to take a peek at what is new and available in this topic. We've seen a big increase in MOX-based VOC sensors, sometimes with additional add-ins like temperature or humidity.
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