PureThermal 2 - FLIR Lepton Smart I/O Board

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The PureThermal 2 Smart I/O Board is a hackable thermal USB webcam breakout for the FLIR Lepton® thermal imaging camera core. Each PureThermal 2 ships pre-configured to operate as a plug-and-play UVC 1.0 USB thermal webcam that will work with a standard webcam and video apps on all major platforms. For developers, its reference firmware, viewer software, and hardware schematic are all open source!

Each PureThermal 2 is equipped with the reliable STM32F412 ARM microprocessor capable of processing images without any external system inputs. With a Lepton inserted into the PureThermal 2 you will be able to achieve 9Hz color video over USB using the USB UVC class. If USB isn’t neccisarily your desired medium, this board has also been fitted with 0.1" pins to interface over UART or I2C.

It’s easy to get started with the PureThermal 2 with the open source software application, GetThermal. The PureThermal 2 and GetThermal both support the radiometric mode of Lepton 2.5 & 3.5 and can view Lepton data on x86 Linux and macOS platforms or even on a Raspberry Pi.

Note: The PureThermal 2 does NOT include a FLIR Lepton imaging module and will need to be purchased separately or in the Dev Kit. The Lepton module is extremely sensitive to electrostatic discharge (ESD). When inserting it into the breakout board be sure to use proper personal grounding, such as a grounding wrist strap, to prevent damage the module.

  • Get Thermal video over USB right out of the box using freeware apps like VLC on Mac, Linux, Windows, or Android
  • PT2 can do 9 Hz color video over usb using the USB UVC class
  • STM32F412 ARM microprocessor. Execute on-board image processing without the need for an external system
  • Through-holes for GPIO and peripheral breakouts to easily attach other devices
  • Device Firmware Upgrade (DFU) the STM32 ARM MCU over USB
  • Debug via JTAG through a 6-Pin plug-of-Nails port using a Tag-Connect TC2030-IDC-NL, an ARM20-CTX, & ST-Link V/2.
  • Powered via USB
  • UART, I2C, and GPIO Expansion via standard 0.1” holes
  • Compatible with all current 2.x and 3.x Lepton cores
  • Dimensions: 30mm x 18mm

PureThermal 2 - FLIR Lepton Smart I/O Board Product Help and Resources

FLIR Lepton Hookup Guide

March 26, 2015

See the invisible world of infrared radiation using the FLIR Dev Kit and Raspberry Pi.

GetThemal App installation videos


Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

3 Programming

Skill Level: Competent - The toolchain for programming is a bit more complex and will examples may not be explicitly provided for you. You will be required to have a fundamental knowledge of programming and be required to provide your own code. You may need to modify existing libraries or code to work with your specific hardware. Sensor and hardware interfaces will be SPI or I2C.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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