DFRobot Beetle ESP32-C6

Board
by DFRobotbeetle-esp32-c6≈ cheap (under ~$15)
Verify my boardCompareEdit on GitHub
DFRobot Beetle ESP32-C6 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
beetle
Dimensions
25 × 20.5 mm
Battery connector
yes
Charging
yes
Built onDFRobot Beetle ESP32-C6 BoardESP32-C6 SoC

Coin-sized ESP32-C6 board (25 x 20.5 mm) for wearable and smart-home IoT: USB-C, 4 MB flash, onboard Li-ion charging, and 13 digital I/O ports.

Firmware for this board

No firmware recipes yet — help add one.

Notes

  • 4 MB flash
  • TP4057 Li-ion charge management chip, max 0.5 A
  • 13 digital I/O ports in a coin-sized form factor
  • ESP32-C6 has no PSRAM interface at all (chip datasheet lists no PSRAM/external-RAM support)
  • io.gpio_exposed=13 QUOTED: vendor page states "has 13 IOs" and "Digital I/O x13"
  • io.gpio_free=11 DERIVED (SPEC-io-power.md §5.3): the vendor page never names individual pins as a single table. Cross-referencing the official schematic (P3/P4 header nets: IO4,IO5,IO6,IO7,IO16,IO17,IO19,IO20,IO21,IO22,IO23 -- 11 pins) with the Espressif Arduino core variant (arduino-esp32 variants/dfrobot_beetle_esp32c6/pins_arduino.h: LED_BUILTIN=15,TX=16,RX=17,SDA=19,SCL=20,SS=4,MOSI=22,MISO=21,SCK=23) gives a 12-pin union {4,5,6,7,15,16,17,19,20,21,22,23}; the 13th pin (to match the vendor's stated total) is GPIO9, wired to the onboard BOOT button/pad per DFRobot forum discussion of this board's pinout. Subtracting esp32-c6's soc.reserved_pins that are exposed -- strapping {9,15}: both present; usb_flash_tied {12,13}: 0 present -- gives 13 - 2 = 11. Math not vendor-stated; verify before treating as exact.

Verify my board

Reads the connected chip over USB and checks it against what esp-atlas cites for DFRobot Beetle ESP32-C6 — over Web Serial, no backend, nothing leaves your browser.

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Serial monitor

Not connected.