MicroPython for DS-D6

This is an external board definition to build MicroPython for the DS-D6 fitness tracker, based on the work done at fanoush/ds-d6. Refer to that repository and its wiki for details. In particular, you need to first install the patched Desay bootloader and then the Adafruit bootloader as detailed there.

How to build

git submodule update --init lib/micropython
make -C lib/micropython/mpy-cross
lib/micropython/ports/nrf/drivers/bluetooth/download_ble_stack.sh s132_nrf52_6_1_1
cd boards/DSD6
make port-submodules
make

To get a zip file that can be flashed via the Adafruit bootloader either over Bluetooth using nRF Connect or over serial using adafruit-nrfutil:

make zip

To flash the zip file over serial using adafruit-nrfutil:

make NRFUTIL_PORT=/dev/... deploy

How to use

Bootloader

To enter the bootloader for serial DFU:

import machine
machine.bootloader()
# or
machine.bootloader(False)

To enter the bootloader for Bluetooth OTA DFU (look for device “AdaDFU”):

import machine
machine.bootloader(True)

Display

To use the display in landscape orientation:

import machine, ssd1306
display = ssd1306.SSD1306_SPI(128, 32, machine.SPI(0), machine.Pin(28), machine.Pin(4), machine.Pin(29))
display.write_cmd(0xDA); display.write_cmd(0x12)
display.write_cmd(0xC0)

display.rect(0, 0, display.width, display.height, 1)
display.text('Hello World!', 16, 12, 1)
display.show()