Need library framebuf

[crouse12]

ESP32 and Esp8266 have a library, called framebuf. Thus, they can show string or draw a picture on oled or Max7219. However, I found that microbit v2 does not have this library. Can you add it?

[microbit-carlos]

Hi @crouse12,

You can build a version of MicroPython with the framebuf module included. Hopefully this steps should be relatively easy:

• Clone this repository and follow all the build steps from the README
• Add #define MICROPY_PY_FRAMEBUF (1) somewhere inside src/codal_port/mpconfigport.h
  • This area is where all the other modules are configured: https://github.com/microbit-foundation/micropython-microbit-v2/blob/64c722c4001864579296ec42f26609dfabb8a92a/src/codal_port/mpconfigport.h#L81-L89
• Rebuild again, and the framebuf module should now be available 🎉

Alternatively there is also this pure Python version available: https://github.com/adafruit/Adafruit_CircuitPython_framebuf

[crouse12]

Could you tell me how to put this new version of micropython into pythoneditor? I need to generate hex file for microbit v2.

[microbit-carlos]

You can replace the microbit-micropython-v2.hex file in https://github.com/bbcmicrobit/PythonEditor/tree/master/micropython.

You can also send files to the micro:bit from your computer with https://github.com/ntoll/microfs.

[microbit-carlos]

I'll close this issue as resolved, but feel free to reopen if you have any questions in this area!