dhcabinian / zmk-config

Building the firmware

Default Keymap

Shield name comes from Kconfig.shield: dactyl_left and dactyl_right

west build -d build/dactyl_left -p -b nice_nano_v2 -- -DSHIELD="dactyl_left nice_view_adapter nice_view"
west build -d build/dactyl_right -p -b nice_nano_v2 -- -DSHIELD="dactyl_right nice_view_adapter nice_view"

Custom Keymap

Shield name comes from Kconfig.shield: dactyl_left and dactyl_right

west build -d build/dactyl_left -p -b nice_nano_v2 -- -DSHIELD="dactyl_left nice_view_adapter nice_view" -DZMK_CONFIG="/workspaces/zmk-config/[yourName]/leeloo_v2/config"
west build -d build/dactyl_right -p -b nice_nano_v2 -- -DSHIELD="dactyl_right nice_view_adapter nice_view" -DZMK_CONFIG="/workspaces/zmk-config/[yourName]/leeloo_v2/config"

Pinouts

Nice!Nanov2

RGB

• Docs use &spi3 on P0.06 (D1)
• Must use high frequency pin
• RGB strips only use 3 pins
  • VCC
  • GND
  • Din = D1

Nice!View

• P0.06 is taken up by RGB.
• Leelo (which this was templated from) uses (D4) for spi0 CS pin
• The remaining data pins come from the nice_view_adapter
  • SCK = NRF20 (D3?)
  • MOSI = NRF17 (D2?)
  • MISO = NRF25 (also known as AC21 which does not have an output on NiceNanov2)

Keys

• What pins are available?
  • D0
  • D5-D9
  • D10-21

Nice!View

Left to Right (througholes below screen):

• MOSI

• SCK

• VCC

• GND

• CS

  • Create a bodge wire from the CS pin to the Arduino Digital 1 (D1) Pro Micro pin (P0.06/006 on the nice!nano)
  • If the D1 pin is unavailable, you'll need to override the cs-gpios on the adapter or define your own &nice_view_spi bus without the nice_view_adapter.

• nice!view is a SSD1306 OLED replacement

• similar pinout to SSD1306 OLEDs with one extra pin

• 3-wire SPI protocol

• 3.3V voltage

Protocols

SPI

• 4 Wires
  • SCK
  • MISO
  • MOSI
  • CS
• nRF52832 has up to 3 SPI instances: SPI0,SPI1,SPI2
• SPIM is SPI w/ DMA (SPI is technically deprecated)
• Max SPI frequency is based on the chip: nRF52832 is max 8 MHz
• Nice!Nano is a Nordic nRF52840