M5Stack StampFly

The M5Stack StampFly is a small quadcopter built on the M5Stamp S3A module, which uses the Espressif ESP32-S3 32-bit Xtensa LX7 dual-core microcontroller. It has a BMI270 IMU, BMM150 magnetometer, BMP280 barometer, two VL53L3CX distance sensors, a PMW3901 optical flow sensor, and an INA3221 power monitor.

Interfaces

Interface	Hardware Supported	TinyGo Support
GPIO	YES	YES
UART	YES	YES
SPI	YES	YES
I2C	YES	YES
ADC	YES	YES
PWM	YES	YES
WiFi	YES	YES
Bluetooth	YES	YES
USBDevice	YES	YES

Pins

Pin	Hardware pin	Alternative names
`G0`	`GPIO0`	`BUTTON`
`G1`	`GPIO1`	`GROVE_G1`, `ADC0`
`G2`	`GPIO2`	`GROVE_G2`, `ADC2`
`G3`	`GPIO3`	`SDA_PIN`, `ADC3`
`G4`	`GPIO4`	`SCL_PIN`, `ADC4`
`G5`	`GPIO5`	`MOTOR_FRONT_LEFT`, `ADC5`
`G6`	`GPIO6`	`TOF_BOTTOM_INT`, `ADC6`
`G7`	`GPIO7`	`TOF_BOTTOM_XSHUT`, `ADC7`
`G8`	`GPIO8`	`TOF_FRONT_INT`, `ADC8`
`G9`	`GPIO9`	`TOF_FRONT_XSHUT`, `ADC9`
`G10`	`GPIO10`	`MOTOR_REAR_LEFT`, `ADC10`
`G12`	`GPIO12`	`PMW3901_CS`, `ADC12`
`G13`	`GPIO13`	`GROVE_SDA`, `ADC13`
`G14`	`GPIO14`	`SPI1_MOSI_PIN`, `ADC14`
`G15`	`GPIO15`	`GROVE_SCL`, `ADC15`
`G21`	`GPIO21`	`WS2812_STAMP`
`G39`	`GPIO39`	`WS2812`
`G40`	`GPIO40`	`BUZZER`
`G41`	`GPIO41`	`MOTOR_REAR_RIGHT`
`G42`	`GPIO42`	`MOTOR_FRONT_RIGHT`
`G43`	`GPIO43`	`UART_TX_PIN`, `SPI1_MISO_PIN`
`G44`	`GPIO44`	`UART_RX_PIN`, `SPI1_SCK_PIN`
`G46`	`GPIO46`	`BMI270_CS`
`ADC11`	`GPIO11`
`ADC16`	`GPIO16`
`ADC17`	`GPIO17`
`ADC18`	`GPIO18`
`ADC19`	`GPIO19`
`ADC20`	`GPIO20`

Machine Package Docs

Documentation for the machine package for the M5Stack StampFly

Flashing

CLI Flashing

Plug your StampFly into your computer’s USB port.
Build and flash your TinyGo code using the tinygo flash command:
```
tinygo flash -target=m5stamp-fly [PATH TO YOUR PROGRAM]
```
The StampFly should restart and then begin running your program.

Notes

The UART pins are shared with the SPI bus, so the serial console uses USB.

The board has an addressable RGB LED on GPIO39 named WS2812. The Stamp-S3A module has another one on GPIO21 named WS2812_STAMP.

The motors are driven by PWM on MOTOR_FRONT_LEFT, MOTOR_FRONT_RIGHT, MOTOR_REAR_LEFT, and MOTOR_REAR_RIGHT. Remove the propellers before testing motor code.

WiFi

You can use the onboard wireless chip for WiFi using the espradio package.

For more information, see https://github.com/tinygo-org/espradio

Bluetooth

You can use the onboard wireless chip for Bluetooth Low Energy using the bluetooth package.

For more information, see https://github.com/tinygo-org/bluetooth

Last modified October 28, 2026: docs: show WiFi and Bluetooth support for ESP32 boards (8cbe676)