Board map
bottom pin definitions
- GND
- +5V
- VIN
- PEN
- 3V3
- VBT
- SDA
- SCL
- GND
full serial interface
- TXD
- RXD
- RST
- CTS
- DCD
- RI
- DTR
top pin definitions
- RST
- PCM: DO DI SYNC CLK
- IO3
- IO2
- Status
jumper select
- SJ2 - RPI_IO4 or VBAT
- back SJ - 3V3 or VBAT
Antenna
- RF
- GNSS
LED Indicator
- PWR power indicator
- NET network status