Note2: You may observe different frame rates between Letpon 2 and 3. Note1: sudo is always required when you run an app communicating with the Lepton sensor

Once the library is build, demo apps can be found in the install/bin folder. LePi library comes with a set of integrated demo apps, that shows how to use the Lepton camera serial and parallel interface. Follow the next steps to build the library and the apps: git clone LePi build is based on the CMake portable pre-build tool. Also, I'm planning on writing an example that uses the librarry without OpenCV. In that case, the demo apps will not be available. Note: The library can be built without OpenCV. I'm using OpenCV 3.3.0, but any version after 3.0.0 should be okay. You can follow these steps for installation, or other tutorial that you find useful and easy to follow. Sudo apt-get install build-essential cmake pkg-config

1x FLIR Lepton® 2.For a more in depth example on how to use this library please check the available apps.

FLIR's Lepton SDKs ( Behind EULA Wall ).

Dual Low Noise LDO for 2.8V voltage (can be by-passed).

Power Efficient 1.2V core voltage (can be by-passed).

25-MHz reference clock (can be by-passed).

Low operating power, nominally 150 mW (< 160 mW over full temperature range).

Output Format: User-selectable 14-bit, 8-bit (AGC applied), or 24-bit RGB (AGC and colorization applied).

Radiometric accuracy (35☌ Blackbody) Greater of:.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 Lepton module is extremely sensitive to electrostatic discharge (ESD). Note: This kit comes in two separate parts and will need to be assembled once received. A few things to consider about this kit: the breakout board will accept a 3-5.5V input and regulate it to what the Lepton® wants, to read an image from the lepton module all you need is an SPI port, and to configure the camera settings you also need an I 2C port, although this is not required. Meanwhile, each breakout board in these kits provides the socket for the Lepton, on-board power supplies, 25Mhz reference clock (can be by-passed), power efficient 1.2v core voltage (can be by-passed), dual low noise LDO for 2.8V voltage (can be by-passed), 100 mil header for use in a breadboard or wiring to any host system. The 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. The Radiometric Lepton® LWIR module included in each Dev Kit acts as a sort of camera and packs a resolution of 80 × 60 active pixels into a camera body that is smaller than a dime and captures infrared radiation input in its nominal response wavelength band (from 8 to 14 microns) and outputs a uniform thermal image.

Lepton 2.5 raspberry pi