M5Stamp C3

The M5Stamp-C3 is a development board based on the Espressif ESP32-C3 a powerful chip that is used on many different board mostly because of the built-in radio that can be used for WiFi or Bluetooth wireless connections.

Interfaces

Interface	Hardware Supported	TinyGo Support
GPIO	YES	YES
UART	YES	YES
SPI	YES	Not yet
I2C	YES	Not yet
ADC	YES	Not yet
PWM	YES	Not yet
USBDevice	YES	Not yet
WiFi	YES	Not Yet
Bluetooth	YES	Not yet

Pins

Pin	Hardware pin	Alternative names
IO0	GPIO0	XTAL_32K_P
IO1	GPIO1	XTAL_32K_N
IO2	GPIO2	WS2812
IO3	GPIO3
IO4	GPIO4	MTMS
IO5	GPIO5	MTDI
IO6	GPIO6	MTCK
IO7	GPIO7	MTDO
IO8	GPIO8
IO9	GPIO9
IO10	GPIO10
IO11	GPIO11	VDD_SPI
IO12	GPIO12	SPIHD
IO13	GPIO13	SPISP
IO14	GPIO14	SPICS0
IO15	GPIO15	SPICLK
IO16	GPIO16	SPID
IO17	GPIO17	SPIQ
IO18	GPIO18
IO19	GPIO19
IO20	GPIO20	U0RXD, UART_RX_PIN
IO21	GPIO21	U0TXD, UART_TX_PIN

Machine Package Docs

Documentation for the machine package for the M5Stamp-C3

Flashing

CLI Flashing

In addition, you must install the esptool flashing tool:

https://github.com/espressif/esptool#easy-installation

Now you should be able to flash your board as follows:

• Plug your ESP32-C3 board into your computer’s USB port.

• Build and flash your TinyGo code using the tinygo flash command. This command flashes the ESP32-C3 with the serial example:

  tinygo flash -target=m5stack-core2 examples/serial
  

• The ESP32-C3 board should restart and then begin running your program.

Troubleshooting

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Notes

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