Description
PureThermal 3 (PT3) is a hackable thermal webcam for the FLIR Lepton (2.x - 3.x and FS) LWIR camera core. It has the same basic functionality of the PureThermal 2 but with a few changes and additional features. Unlike the PT2, the PT3 does not have pads to install an RF shield and the Tag-Connect TC2030 programming connector is replaced by the Tag-Connect EC-10-IDC.
Design, PCB Fabrication, and Assembly Done in the USA!

New Features:
- USB-C connector
- Flash custom firmware with USB DFU
- Castellated edge with full JTAG breakout for rapid flashing
- Better buttons for Boot and Reset
- 3x STM32F412CG GPIO pins
- Breakout for SPI to communicate directly with the Lepton
- SPI bus is 3V with a 56 Ohm series resistor
- Partially MikroBUS™ compatible breakout pin configuration
Features:
- STM32F412 ARM microprocessor: Execute on-board image processing without the need for an external system or SBC.
- USB UVC works on Windows, Linux, Mac, and sometimes Android
- Open source reference firmware is on the GroupGets Github
- Open source reference image viewer software for Linux and macOS
- USB-C connector
- Flash custom firmware with USB DFU
- Castellated edge with full JTAG breakout for rapid flashing
- Better buttons for Boot and Reset
- 3x STM32F412CG GPIO pins
- Breakout for SPI to communicate directly with the Lepton
- SPI bus is 3V with a 56 Ohm series resistor
- Partially MikroBUS™ compatible breakout pin configuration
Resources:
PureThermal 3 Datasheet
Software
Mechanical:
Weight : <3g without Lepton
Press:
PureThermal 3 board embeds FLIR Lepton FS thermal camera for $200 - CNX Software
GroupGets Launches the PureThermal 3, a $200 Hackable FLIR Lepton FS Thermal Camera Board