Wiring

Wiring CRServoF

To flash, use platformio and an STLINK adapter.

Blue Pill

Target name: F103_serial Blue Pill

Pin	Description
5V	5V power input, 3.5V - 5.5V
GND	Ground, gotta have this
PA2	TX (connect to CRSF RX)
PA3	RX (connect to CRSF TX)
PA15	Servo output CH1 - CRSF Channel 1
PB3	Servo output CH2 - CRSF Channel 2
PB10	Servo output CH3 - CRSF Channel 3
PB11	Servo output CH4 - CRSF Channel 4
PA6	Servo output CH5 - CRSF Channel 6
PA7	Servo output CH6 - CRSF Channel 7
PB0	Servo output CH7 - CRSF Channel 8
PB1	Servo output CH8 - CRSF Channel 12
A0	VBAT needs voltage divider

CopterControl CC3D

Target name: CC3D CopterControl CC3D

Item	Note
CRSF receiver	Connect to CC3D "Flexi" port (GND, 5v, reciever RX, reciever TX)
ELRS passthrough flash	Use CC3D mini USB connector (need external power for the reciever)
Servo output 1-6	PWM output headers
Servo output 7,8	configured on PWM input header 1,2 (untested)
Voltage sensor	Stock analog voltage sensor pin header "SWD" port (untested)
STLINK	over the CC3D "SWD" port (GND, 3.3v, SWDIO, SWCLCK)

Purple Pill

Target name: PURPLEPILL CJMCU1038 Board

Pin	Description
5V	5V power input, 3.5V - 5.5V
GND	Ground
TX	PA9 (connect to CRSF RX)
RX	PA10 (connect to CRSF TX)
PA3	Servo output CH1 - CRSF Channel 1
PA2	Servo output CH2 - CRSF Channel 2
PA1	Servo output CH3 - CRSF Channel 3
PA0	Servo output CH4 - CRSF Channel 4
PB0	Servo output CH5 - CRSF Channel 6
PB1	Servo output CH6 - CRSF Channel 7
PA6	Servo output CH7 - CRSF Channel 8
PA7	Servo output CH8 - CRSF Channel 12
CS	PA4 VBAT needs voltage divider
DIO	SWDIO on ST-Link v2 for programming
DLK	SWCLK on ST-Link v2 for programming
RST	RST on ST-Link v2 for programming
GND	GND on ST-Link v2 for programming
3.3	3.3V on ST-Link v2 for programming