Raspberry Pi-powered thermal camera using the MLX90640 chipset and a 7" touchscreen display
Hardware requirements: Raspberry Pi, Pi Camera, MLX90640, and a touchscreen display. Currently set up for a 7" touchscreen display at 720x480 (mode 36). Also tested with a 3.2" inch touchscreen at 480x320 resolution, requires changing the FULLRESOLUTION variable.
Camera and i2c need to be enabled. Set i2c as fast as possible in config.txt: dtparam=i2c1_baudrate=1000000
Requires opencv, numpy, matplotlib, imutils and bsdz mlx90640-library - https://github.com/bsdz/mlx90640-library
controls:
NV - plain video, add an IR illuminator to have "night vision".
TV - plain thermal mode. press button again to cycle through colourmaps.
HV - hybrid vision mode, thermal overlaid over video. press button again to cycle through colourmaps.
! - take a snapshot
LK - lock thermal frame to video frame. this slows down video FPS to the same rate as thermal, but prevents the thermal from lagging behind video.
X - exit
Snapshot examples:
