Pinout

Adafruit Feather RP2350 HSTX

Grow R503 Pro

Connections

#	R503 Pro Wire Color	Name	PIN #	Pin Name	Notes
1	$${\color{red}RED \space Wire}$$	Power	3V3	$${\color{red}3V3}$$	3.3 Volts (Top Left Of Feather).
2	$${\color{black}BLACK \space Wire}$$	GND	GRD	$${\color{black}GND}$$	Ground (Right Under 3.3 Pins).
3	$${\color{yellow}YELLOW \space Wire}$$	TXD	01	$${\color{green}RX}$$	TX on R503 <> RX on the Feather.
4	$${\color{green}GREEN \space Wire}$$	RXD	00	$${\color{yellow}TX}$$	RX on R503 <> TX on the Feather.
5	$${\color{blue}BLUE \space Wire}$$	Wakeup	02	$${\color{BLUE}SDA}$$	Finger Detection (Pulled High).
6	$${\color{white}WHITE \space Wire}$$	Touch	3V3	$${\color{red}3V3}$$	3.3 Volts (Top Left Of Feather).