Loading source-backed pinouts…
Microcontroller · Development Board
Seeed Studio XIAO ESP32C6
A compact XIAO board with ESP32-C6 Wi-Fi 6, Bluetooth LE, Zigbee, and Thread radios for modern IoT prototypes.
Processor
Espressif ESP32-C6
Logic
3.3 V GPIO
Power
USB-C, battery pads, 5 V/3.3 V pins
Format
Tiny castellated module
Check before wiring
- 3.3 V GPIO only.
- Boot strap and USB/JTAG pins need care during reset and flashing.
- Radio coexistence and firmware support vary by stack.
Interfaces
GPIOI2CSPIUARTADCPWMUSBWi-FiBluetoothZigbeeThread
Source-backed connector
Interactive pin map
Pin map
Connector
XIAO 14 castellated pads
USB-C at top, component side up, 7 pads down each long edge
Simplified technical illustration. Pin data is source-backed; verify against the linked documentation before wiring.
Hover, tap, or focus a pad to inspect a pin. Use arrow keys to move between pins.
- USB-C at top, component side up; labels follow Seeed's XIAO ESP32C6 pin table.
- GPIO is 3.3 V only and is not 5 V tolerant.
- D0-D2 are analog inputs; D3 (GPIO21) is digital-only on this board, unlike other XIAO modules.
All 14 pins (table)
| # | Signal | Role | Net | Also / notes |
|---|---|---|---|---|
| 1 | ADC | GPIO0 | ||
| 2 | ADC | GPIO1 | ||
| 3 | ADC | GPIO2 | ||
| 4 | GPIO | GPIO21 | ||
| 5 | I2C | I2C | GPIO22 | |
| 6 | I2C | I2C | GPIO23 | |
| 7 | UART | UART | GPIO16 | |
| 14 | Power | 5V | ||
| 13 | Ground | GND | ||
| 12 | Power | 3V3 | ||
| 11 | SPI | SPI | GPIO18 | |
| 10 | SPI | SPI | GPIO20 | |
| 9 | SPI | SPI | GPIO19 | |
| 8 | UART | UART | GPIO17 |
Why it matters
- Official wiki documents pinout and wireless setup.
- Tiny board with radio support for Matter-style experiments.
- Castellated footprint fits small products and sensor nodes.
Keep exploring
Similar boards
Adafruit ESP32-S3 Feather
same development board class · same microcontroller platform
Adafruit Feather M4 Express
same microcontroller platform · 7 shared interfaces
Adafruit Feather nRF52840 Express
same development board class · same microcontroller platform
Adafruit Feather RP2040
same microcontroller platform · 7 shared interfaces