Seeed Studio XIAO ESP32C6

Board
by Seeed Studioxiao-esp32c6≈ cheap (under ~$15)

Also known as: seeed_xiao_esp32c6

Verify my boardCompareEdit on GitHub
Seeed Studio XIAO ESP32C6 pinout
Pinout

Specifications

Radiosinherited from ESP32-C6

Wi-Fi
Wi-Fi 6 · 2.4 GHz
Bluetooth LE
BLE 5.3
Bluetooth Classic
no
802.15.4
Zigbee 3.0, Thread 1.3, Matter

USB

Native USB
yes
Connector
usb-c

Board

Form factor
xiao
Dimensions
21 × 17.8 mm
Battery connector
yes
Charging
yes

Display & extras

Extras
external-antenna-ipex
Built onSeeed Studio XIAO ESP32C6 BoardESP32-C6 SoC

Thumb-sized bare-C6 XIAO board: Wi-Fi 6 / BLE / 802.15.4, USB-C, LiPo charging, U.FL antenna w/ RF switch.

Firmware for this board

No firmware recipes yet — help add one.

Notes

  • 4 MB flash, no PSRAM
  • U.FL external antenna with RF switch on GPIO14
  • onboard battery charging
  • io.gpio_exposed=11 QUOTED: vendor Specifications table states "11x GPIO(PWM)"
  • io.gpio_free=11 DERIVED, not quoted (SPEC-io-power.md §5.3). Pin Map table breaks out D0-D10 = 11 pads total (quoted: D0=GPIO0, D1=GPIO1, D2=GPIO2, D3=GPIO21, D4=GPIO22, D5=GPIO23, D6=GPIO16, D7=GPIO17, D8=GPIO19, D9=GPIO20, D10=GPIO18). Subtracting esp32-c6's soc.reserved_pins that are exposed -- strapping {8,9,10,11,15} (0 exposed) and usb_flash_tied {12,13} (0 exposed) -- gives 11 - 0 - 0 = 11 (none of this SoC's reserved pins land on the header). Math not vendor-stated; verify before treating as exact.
  • io.power_out OMITTED: vendor page has no "Power Pins" section and no stated 5V/3V3 output-current rating (only input voltage and sleep-mode consumption figures)

Verify my board

Reads the connected chip over USB and checks it against what esp-atlas cites for Seeed Studio XIAO ESP32C6 — over Web Serial, no backend, nothing leaves your browser.

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Serial monitor

Not connected.