Joystick module with Teensy 4.1

Wiring for the Analog joystick (KY-023) on the Teensy 4.1 (MIMXRT1062DVJ6B, 3.3 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	Teensy 4.1 pin	Notes
GND	Ground	G
+5V	Power	3V	Connect to 3V3 anyway, so the outputs stay within the ADC range
VRX	Analog output	14 (GPIO_AD_B1_02)
VRY	Analog output	15 (GPIO_AD_B1_03)
SW	Output from the part	2 (GPIO_EMC_04)	Button: LOW when pressed. Use INPUT_PULLUP

Check before you power it on

Supply: 3.3 V from the 3V pin.

Test code (Arduino)

void setup() {
  Serial.begin(115200);
  analogReadResolution(12);
}

void loop() {
  long mv = (long)analogRead(14) * 3300L / 4095;  // VRX on 14
  Serial.println(mv);
  delay(200);
}

Arduino board: teensy:avr:teensy41. Press the white program button once if the upload waits for the board.

Questions

Which Teensy 4.1 pins do I use for the Joystick module?

GND → G, +5V → 3V, VRX → 14 (GPIO_AD_B1_02), VRY → 15 (GPIO_AD_B1_03), SW → 2 (GPIO_EMC_04).

Does the Joystick module work with the Teensy 4.1 at 3.3 V?

Yes: the Joystick module runs at 3.3 V and the Teensy 4.1 uses 3.3 V signals, so no level shifting is needed.

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

Download BoardPilot

Full Teensy 4.1 pinout · Analog joystick (KY-023): all pins and data

The Joystick module on other boards

ESP32 DevKit Arduino Mega 2560 R3 Arduino Nano 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

Other parts on the Teensy 4.1

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