[Max Ritter] is a 21 year old student of information technology at the University of Applied Science at Weingarten, Germany. Three years ago he brought us the DIY Cheap-Thermocam, a tool for thermal imaging that cost <$100. Since then he’s made a few upgrades.
The original Cheap-Thermocam made use of an Arduino, the sensor from a thermometer gun and a few XY servos. In about 2 minutes the XY servos can scan and measure 1344 points using the thermometer’s sensor, creating a heat-vision map of 42 x 32 pixels — not amazing, but it worked — and it was cheap!
The new version (V3) has its own ARM Cortex M3 processor, it measures 3072 points in 2 minutes from -70°C to 380°C with an accuracy of 0.5°C, and it exports its images at a resolution of 640 x 480 –close to commercial offerings! It’s not capable of real-time scanning, but for the majority of purposes you need one of these for — it’s really not that necessary.