NEO-6M GPS with Raspberry Pi Pico

Wiring for the NEO-6M GPS module (GY-NEO6MV2) on the Raspberry Pi Pico (RP2040, 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

Check before you power it on

• Supply: 3.3 V from the 3V3(OUT) pin.

Test code (Arduino)

SerialPIO gps(15, 14);  // TX, RX: any pins, through the PIO

void setup() {
  Serial.begin(115200);
  gps.begin(9600);
}

void loop() {
  while (gps.available()) Serial.write(gps.read());  // NMEA sentences, e.g. $GPGGA
}

Arduino board: rp2040:rp2040:rpipico. If the board is not found, hold the BOOTSEL button while plugging in the USB cable.

Questions

Which Raspberry Pi Pico pins do I use for the NEO-6M GPS?

VCC → 3V3(OUT), RX → GP15, TX → GP14, GND → GND.

Does the NEO-6M GPS work with the Raspberry Pi Pico at 3.3 V?

Yes: the NEO-6M GPS runs at 3.3-5 V and the Raspberry Pi Pico uses 3.3 V signals, so no level shifting is needed.

Full Raspberry Pi Pico pinout · NEO-6M GPS module (GY-NEO6MV2): all pins and data

The NEO-6M GPS 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 Teensy 4.1

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