I'm thinking about getting a thermal camera for my Pi Zero. Anyone know what I should look for? Can I use the Melexis MLX90640 32x24 or the Flir Lepton 80x64?
I just want to plug, simple and easy config (to an extent) and off it goes.
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I had experience with both modules, Melexis is pretty simple it just need I2C connection and the code you can easily find on GIT works fine and you'll be able to have a low res IR picture (at a good frame rate if you need). Lepton module (I used Lepton3 160x120 module but modules share the same h/w interface) is a little more complex since it needs both I2C and SPI connection. There are several repositories around with lots of infos but be carefull and check twice what they suggest because I found some (surprisingly Sparkfun' one) that reports a totally wrong wiring. I got some issues using Lepton3 with Raspberry Pi 0 W while it works fine with Raspberry Pi 3 B+. Melexis MLX90640 works fine with both boards.
I can't comment on which is better, but web searching the first chip name with raspberry pi leads to this page: https://github.com/abood91/RPiMLX90640 that shows it working. Based on another related search result the setup may or may not be what you would call easy. Similar could be done for the other one.