lucaong
Elixir library for MLX90640 Far Infrared Thermal Camera
Hello,
I am playing a bit with the MLX90640 far infrared thermal sensor array, and I wrote an Elixir library to interface with it. It is published on Hex as elixir_mlx90640, and it is designed to work on Linux platforms, such as Nerves. So far, I tested it on a Raspberry Pi Zero W.
The MLX90640 is an inexpensive thermal camera. It has a low resolution (36 x 24 pixels), but it is quite precise, and a nice sensor for the price. I found that interfacing it with micro-controllers or with Linux using the provided C++ libraries is a bit tricky and error prone (lots of gotchas), so I hope I made it easier to use it with this Elixir library.
Let me know what you think 
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lucaong
I made a few fixes for Nerves, and created this example project for the Raspberry Pi (demo image on the repo page): GitHub - lucaong/nerves_thermal_camera: Thermal camera imaging with Elixir, Nerves, Raspberry Pi, and a MLX90640 sensor · GitHub
I have to say, it’s a really fun sensor to work with
Matt
That is a really cool library. Great work 
That sensor might be low resolution, but I can think of many real-world applications for it!
holder66
Here are instructions for setting up the raspi as a wifi access point: https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md
Best to do this using wired access!
If you want the raspi to auto-detect your home wifi network and use that if available, and become a wifi access point only if your home wifi network is unavailable, the instructions here work: Raspberry Connect - Raspberry Pi - Auto WiFi Hotspot Switch - Direct Connection
Caveat: I did this on a raspi 3, and using Raspian, not the Nerves-installed OS.
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