Adafruit MatrixPortal M4 and CircuitPython powered prototype.

Based upon Adafruit's Metro Matrix Clock for Airlift Metro M4 with 64x32 RGB Matrix display & shield.

Copyright (c) 2018 Adafruit Industries
Copyright (c) 2021-2022 Raphaël Doursenaud [email protected]

Licensed under MIT. See LICENSE.

• Adafruit Matrix Portal Starter Kit - ADABOX 016 Essentials (PRODUCT ID: 4812)
  Contains:
  • Adafruit Matrix Portal - CircuitPython Powered Internet Display (Product ID: 4745)
  • 64x32 RGB LED Matrix - 4mm pitch (Product ID: 2278)
  • Black LED Diffusion Acrylic Panel - 10.2" x 5.1" - 0.1" / 2.6mm thick (Product ID: 4749)
  • Clear Adhesive Squares - 6 pack - UGlu Dashes (Product ID: 4813)
  • 5V 2.5A Switching Power Supply with 20AWG MicroUSB Cable (Product ID: 1995)
  • Micro B USB to USB C Adapter (Product ID: 4299)
• Adafruit DS3231 Precision RTC - STEMMA QT (PRODUCT ID: 5188)
• STEMMA QT / Qwiic JST SH 4-Pin Cable - 50mm Long (PRODUCT ID: 4399)

1. Firmware updates
   1. Update the ESP32 firmware.
   2. Update the U2F Bootloader.
   3. Install or update to CircuitPython version 7.x.
2. Libraries
   1. Install the requirements listed in requirements-circuitpython.txt on your Matrix Portal. (I tend to use CircUp).
3. WLAN configuration
   1. Complete your informations into _secrets.py.
   2. Rename _secrets.py to secrets.py.
4. Installation
   1. Copy all the files under src to the root of your Matrix Portal storage.

• Clock
  • RTC
    • Integrated into MCU
    • DS3231
  • NTP (WiFi)
  • GPS
• USB-MIDI support (adafruit_midi)
• MIDI Time Code (MTC) display (uses heavily modified snippets from Jeff Mikels' timecode_tools)
  • Adafruit MIDI MTC Quarter Frame support
  • MTC decoding with correct frame sync
  • Performance optimization
• Transport status display
  • MTC
    • running
    • synced
    • stopped
    • direction
    • FPS
  • MTC synced
  • MIDI clock
    • Metronome display?
• HUI mode
  • timecode
  • bargraph
  • rec enable?
• MCU mode (See https://github.com/EMATech/PythonMcu)
  • timecode
  • bargraph
  • rec enable?
• Environmental sensors support?

• Adapted to MatrixPortal M4.
• Defaults to using standard NTP instead of adafruit.io to fetch time.
• Added a 24 hours display mode.
• Added seconds display.
• Added Gorgy Timing inspired seconds chaser and font.
• Added date display.
• Added button handling for stealth mode.
• Added RTC (DS3231) support.
• Added a prototype MIDI Time Code (MTC) display mode.

• https://github.com/orchetect/MIDIKitSync (Implementation looks to be on point)
• https://github.com/AlexDWong/MTCDisplay (Similar hardware)