Seeed XIAO BLE

The Seeed XIAO BLE is a tiny ARM development board based on the Nordic Semiconductor nrf52840 processor.

Interfaces

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

Pins

Pin	Hardware pin	Alternative names
D0	P0_02	A0
D1	P0_03	A1
D2	P0_28	A2
D3	P0_29	A3
D4	P0_04	A4, SDA0_PIN
D5	P0_05	A5, SCL0_PIN
D6	P1_11	UART_TX_PIN
D7	P1_12	UART_RX_PIN
D8	P1_13	SPI0_SCK_PIN
D9	P1_14	SPI0_SDO_PIN
D10	P1_15	SPI0_SDI_PIN
LED	P0_17	LED_CHG
LED1	P0_26	LED_RED
LED2	P0_30	LED_GREEN
LED3	P0_06	LED_BLUE
SDA_PIN	P0_07	SDA1_PIN
SCL_PIN	P0_27	SCL1_PIN
LSM_PWR	P1_08
LSM_INT	P0_11
MIC_PWR	P1_10
MIC_CLK	P1_00
MIC_DIN	P0_16

Machine Package Docs

Documentation for the machine package for the Seeed XIAO BLE

Flashing

UF2

The XIAO BLE comes with the UF2 bootloader already installed.

CLI Flashing

• Plug your XIAO BLE into your computer’s USB port.

• Flash your TinyGo program to the board using this command:

  tinygo flash -target=xiao-ble [PATH TO YOUR PROGRAM]
  

• The XIAO BLE board should restart and then begin running your program.

Troubleshooting

Add troubleshooting tips here.

Notes

You can use the USB port to the XIAO BLE as a serial port. UART0 refers to this connection.