Joystick module with Arduino Nano

Wiring for the Analog joystick (KY-023) on the Arduino Nano (ATmega328P, 5 V logic), chosen with the same pin rules BoardPilot uses: default buses first, and no pins that are used for flash, USB, the debugger or booting.

Wiring

Joystick module pin	Role	Arduino Nano pin	Notes
GND	Ground	GND
+5V	Power	3V3	Connect to 3V3 anyway, so the outputs stay within the ADC range
VRX	Analog output	A0 (PC0)
VRY	Analog output	A1 (PC1)
SW	Output from the part	D2 (PD2)	Button: LOW when pressed. Use INPUT_PULLUP

Check before you power it on

Supply: 3.3 V from the 3V3 pin.
The Joystick module is a 3.3 V part and the Arduino Nano uses 5 V signals. Power it from 3.3 V and put a level shifter on the signal wires, or buy a 5 V version of the module.

Test code (Arduino)

void setup() {
  Serial.begin(115200);
}

void loop() {
  long mv = (long)analogRead(14) * 5000L / 1023;  // VRX on A0
  Serial.println(mv);
  delay(200);
}

Arduino board: arduino:avr:nano. Clones with the old bootloader upload at 57600 baud: choose “ATmega328P (Old Bootloader)” if uploads fail.

Questions

Which Arduino Nano pins do I use for the Joystick module?

GND → GND, +5V → 3V3, VRX → A0 (PC0), VRY → A1 (PC1), SW → D2 (PD2).

Does the Joystick module work with the Arduino Nano at 5 V?

The Joystick module is a 3.3 V part and the Arduino Nano uses 5 V signals. Power it from 3.3 V and put a level shifter on the signal wires, or buy a 5 V version of the module.

BoardPilot checks this wiring in 3D as you build it, and finds crossed or missing wires on the real board.

Download BoardPilot

Full Arduino Nano pinout · Analog joystick (KY-023): all pins and data

The Joystick module on other boards

ESP32 DevKit Arduino Mega 2560 R3 Arduino Uno R3 WeAct Black Pill STM32F411CE ESP32-C3-DevKitM-1 ESP32-S3-DevKitC-1 Nordic nRF52840 DK NUCLEO-F401RE Raspberry Pi Pico 2 Raspberry Pi Pico W Raspberry Pi Pico Teensy 4.1

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