RP2040 Pico W Pinout & Connection We start by connecting the Grow r503 (Pro) to the RP2040 Pico W with the following pinout.
#
Sensor Wire Color
Function
PIN#
Pin Name
1
$${\color{red}RED \space Wire}$$ Power
36
$${\color{red}3V3(OUT)}$$
2
$${\color{black}BLACK \space Wire}$$ Ground
38
$${\color{black}GND}$$
3
$${\color{yellow}YELLOW \space Wire}$$ TX (Out)
21
$${\color{purple}UART0 \space RX (GPIO 17)}$$
4
$${\color{purple}PURPLE \space Wire}$$ RX (In)
22
$${\color{purple}UART0 \space TX (GPIO 16)}$$
5
$${\color{blue}BLUE \space Wire}$$ Wakeup
24
$${\color{lightgreen}GPIO 18}$$
6
$${\color{white}WHITE \space Wire}$$ Touch
36
$${\color{red}3V3(OUT)}$$
Raspberry Pi Model B / W Boards GPIO
#
Sensor Wire Color
Function
PIN#
Pin Name
1
$${\color{red}RED \space Wire}$$ Power
3V3
$${\color{orange}3V3(OUT)}$$
2
$${\color{black}BLACK \space Wire}$$ Ground
GND
$${\color{black}GND}$$
3
$${\color{yellow}YELLOW \space Wire}$$ TX (Out)
14
$${\color{purple}UART \space RX (GPIO 15)}$$
4
$${\color{purple}PURPLE \space Wire}$$ RX (In)
15
$${\color{purple}UART \space TX (GPIO 14)}$$
5
$${\color{blue}BLUE \space Wire}$$ Wakeup
4
$${\color{yellow}GPIO 4}$$
6
$${\color{white}WHITE \space Wire}$$ Touch
3V3
$${\color{red}3V3(OUT)}$$
