ZIP Halo HD clock (zhhclock) V1.1 occasional ZIP LED glitches and micro:bit 030 errors

[kevinjwalters]

The V1.1 version (and prior) has two issues:

• ZIP LEDs can "flash" every 10 minutes or so. This gltich was caught on video at 04:25. Rare glitches on WS2812B pixels using neopixel library on micro:bit V2 microbit-foundation/micropython-microbit-v2#227
• About every half day when left in digital rain mode it can produce 030 errors (DEVICE_HEAP_ERROR) on the micro:bit

These aren't likely to be issues with the program, most likely to be MicroPython 2.1.2 bugs.

MicroPython 2.1.2 has poor time-keeping but this can be corrected with a large ppm value in config.py.

[kevinjwalters]

Discussion has moved to lancaster-university/codal-microbit-v2#475