A feather form factor for BLE, ZigBee or Thread node based on the NXP MKW41Z wireless microcontroller. This is work in progress and a completely untested design as at this point.
- Feather header pins (custom mapping due to limited MCU pins)
- NXP MKW41Z Wireless MCU With a PCB antennae
- SWD Debug (using some of the feather header pins)
- USB to UART (CP2104) connected to the MCU UART terminal
- LiPo battery charger (SL4054ST25P) with a standard battery connector
- On board 5V to 3.3V regulator
- RTC oscillator
- Reset and user buttons
- Indicator LEDs (One user LED, two BLE activity LEDs)
- Add U.FL connector for external antennae with a series selection resistor
- Add on-board SD card connector (back side)