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    Beetix

    @Beetix

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    Posts made by Beetix

    • RE: M5Paper Image conversion

      Thank you for your reply. Yes, I did stumble upon the bin2code.py script you mention. The issue is that it doesn't convert the image to raw pixel data (usable by M5EPD_Driver::WriteFullGram4bpp).

      After a bit more research, I found a preliminary command using ImageMagik to convert an image to raw pixel data for the M5EPD: convert input.png -depth 4 -negate output.gray

      Then convert the raw data to C with bin2code.py : ./bin2code.py output.gray

      The result can then be appended to ImageResource.h

      posted in Cores
      B
      Beetix
    • M5Paper Image conversion

      Hi,

      I've forked the Factory Test and I'm trying to add new image resources. What source image format and tool (Linux compatible) should I use to generate C arrays like in ImageResource.h?

      Thanks

      posted in Cores
      B
      Beetix
    • RE: LoRaWan module internal antenna

      I used an antenna analyzer and this is what I got:
      LoRaWAN Module internal antenna analysis
      There are 3 spikes around the following frequencies:

      • 610 MHz
      • 820 MHz
      • 2300 MHz
      posted in Modules
      B
      Beetix
    • LoRaWan module internal antenna

      Hi,

      Does anyone know what is the resonating frequency of the internal PCB antenna of the LoRaWan module?
      internal_antenna.jpg

      Thanks.

      posted in Modules
      B
      Beetix