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FLIR Lepton 2 --> VGA — Parallax Forums

FLIR Lepton 2 --> VGA

RaymanRayman Posts: 14,744
edited 2021-06-23 14:24 in Propeller 2
The FLIR Lepton2 is thermal imager with 80x60 resolution.

This code interacts with FLIR over I2C and then receives video data over SPI.

The frame rate is 9 Hz, although it sends the same frame repeatedly until a new one is available.

This code takes the raw data and then scales it to between 0 and 255 for the VGA driver.
There are several palettes to choose from.

Update: Added a version (2C) that works with Prop Tool 2.5.3.

Comments

  • RaymanRayman Posts: 14,744
    I'll work on Lepton3 next...
  • Nice!
  • Looking great Rayman
  • RaymanRayman Posts: 14,744
    I just realized that I broke the I2C when I added VGA...

    Reason is that old p1 I2C driver had 16-bit addressing where P2 needs 24-bit for large programs...

    I've put fixed code in top post.
  • That's really neat.
  • Very nice work
  • RaymanRayman Posts: 14,744
    edited 2020-11-16 19:36
    I got a Lepton 3.5 talking and showing an image, but this one is a lot more picky....

    Might have to use a smartpin synchronous serial receive mode to boost the serial data rate.

    Seems I need to move from 9 MHz to 20 MHz on SPI clock to get the best data...
  • RaymanRayman Posts: 14,744

    Updated the code a bit so it works latest Prop Tool, posted in top post just now.
    Don't have a VGA monitor handy, so it's rigged to just send first pixel value over serial.
    But, the VGA code is still there, it probably works, just needs to be called.

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