With Lepton 2.5, radiometry just works out of the box. Developers have long sought this feature and until now have had to go through very arduous computing and physical processes to make Lepton 2.0 adequately radiometric. Lepton 2.5 can output a factory-calibrated temperature value for all 4800 pixels in a frame irrespective of the camera temperature with an accuracy of +/-5˚C. 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.The radiometric-capable FLIR Lepton 2.5 is a long-wave infrared (LWIR) thermal imaging core that builds upon its non-radiometric 2.0 predecessors. The Lepton module is extremely sensitive to electrostatic discharge (ESD). 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 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. It’s easy to get started with the PureThermal 2 with the open source software application, GetThermal. If USB isn’t neccisarily your desired medium, this board has also been fitted with 0.1" pins to interface over UART or I 2C. With a Lepton inserted into the PureThermal 2 you will be able to achieve 9Hz color video over USB using the USB UVC class. For developers, its reference firmware, viewer software, and hardware schematic are all open source!Įach PureThermal 2 is equipped with the reliable STM32F412 ARM microprocessor capable of processing images without any external system inputs. 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. The PureThermal 2 Smart I/O Board is a hackable thermal USB webcam breakout for the FLIR Lepton® thermal imaging camera core.
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