ZMK based wireless half keyboard
Remember to attribute: https://github.com/daprice/keyswitches.pretty/tree/master
Attribute the Fanstel module footprint and symbols to: https://github.com/hemalchevli/Fanstel-kicad-library
- Big Option
- JST Connector (PH). Digikey Link
- Slightly smaller option
- Charging current
- std 0.2C, max. 1C. (60mA to 300mA)
- Premade digikey cart: https://www.digikey.fr/short/4dtv58d8
- General nRF crystal design guidelines
- nRF52840 reference circuit
- They recommend a 9pF crystal for the 32.768kHz crystal
- Nordic White paper on Crystal oscillator design Note, there is a correction of this white paper on the first link in this section.