# Adafruit ESP32-C6 Feather > Open-source Feather-form-factor ESP32-C6 board with WiFi 6, BLE 5, Thread, Zigbee, STEMMA QT, NeoPixel, LiPo charging with MAX17048, and CircuitPython support — $14.95. ## Quick Facts - **Brand:** Adafruit - **Board Type:** dev-board - **Price:** ~$14.95 - **Product Readiness:** consumer - **CPU:** RISC-V single-core @ 160MHz - **CPU Architecture:** RISC-V RV32IMAC - **CPU Cores:** 1 - **RAM:** 512KB SRAM - **Flash:** 4MB - **USB:** USB-C (serial via CH340) - **Power:** USB-C or LiPoly JST - **Operating Voltage:** 3.3V - **Battery:** LiPo (external, via JST) - **Charging Port:** USB-C - **Antenna:** Built-in PCB antenna ## Connectivity - **Wifi:** 802.11ax (WiFi 6) - **Bluetooth:** BLE 5.0 - **Thread:** Thread 1.3 - **Zigbee:** Zigbee 3.0 - **Matter:** Matter over Thread ## Open Source - **Firmware:** Yes - **Schematics:** Yes - **PCB Layout:** Yes ## Compatible Firmware arduino, circuitpython, micropython, esphome, esp-idf ## Use Cases - matter-smart-home - matter-smart-home - smart-home - thread-mesh-network - iot - prototyping - battery-powered-sensor-node - circuitpython-learning ## Components - **ESP32-C6** (mcu): Espressif ESP32-C6 @ 160MHz, 4MB flash, WiFi 6, BLE 5, Zigbee, Thread 1.3, and Matter support. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-c6_datasheet_en.pdf&ref=openhardware.directory&product=adafruit-esp32-c6-feather&source=md-export) - **MAX17048** (battery-gauge): Maxim MAX17048 I2C fuel gauge for accurate LiPo battery state-of-charge measurement. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.analog.com%2Fmedia%2Fen%2Ftechnical-documentation%2Fdata-sheets%2FMAX17048-MAX17049.pdf&ref=openhardware.directory&product=adafruit-esp32-c6-feather&source=md-export) - **adafruit-lipo-charger** (battery-charger): Onboard USB-C LiPo charger via JST 2-PH connector with peripheral power control pin. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Flearn.adafruit.com%2Fadafruit-esp32-c6-feather&ref=openhardware.directory&product=adafruit-esp32-c6-feather&source=md-export) ## Protocols - **I2C**: SDA: IO19, SCL: IO18 - **SPI**: SCK: IO21, MOSI: IO22, MISO: IO23 - **UART**: TX: IO16, RX: IO17 ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | A0/IO0 | ADC / GPIO | — | digital-input, digital-output, adc, pwm | | A1/IO1 | ADC / GPIO | — | digital-input, digital-output, adc, pwm | | A2/IO6 | ADC / GPIO (shared) | — | digital-input, digital-output, adc | | A3/IO5 | ADC / GPIO (shared) | — | digital-input, digital-output, adc | | A4/IO2 | ADC / GPIO | — | digital-input, digital-output, adc | | A5/IO3 | ADC / GPIO | — | digital-input, digital-output, adc | | IO4 | GPIO | — | digital-input, digital-output, pwm | | IO7 | GPIO | — | digital-input, digital-output, pwm | | IO8 | GPIO | — | digital-input, digital-output, pwm | | IO9 | NeoPixel / BOOT | — | digital-output, strapping | | IO15 | Red LED | — | digital-output | | IO16 | UART TX | UART | digital-input, digital-output | | IO17 | UART RX | UART | digital-input, digital-output | | IO18 | I2C SCL / STEMMA QT | I2C | digital-input, digital-output | | IO19 | I2C SDA / STEMMA QT | I2C | digital-input, digital-output | | IO20 | Peripheral Power Control | — | digital-output | | IO21 | SPI SCK | SPI | digital-input, digital-output | | IO22 | SPI MOSI | SPI | digital-output | | IO23 | SPI MISO | SPI | digital-input | | EN | Reset / Enable | — | | | 3V3 | 3.3V Power | — | | | VBAT | Battery Voltage | — | adc | ## Available Software - **[arduino]()** (open-source) - **[circuitpython]()** (open-source) - **[micropython]()** (open-source) - **[esphome]()** (open-source) - **[ESP-IDF]()** (open-source) ## Description ## Overview The Adafruit ESP32-C6 Feather brings WiFi 6, Bluetooth 5 LE, Zigbee, and Thread (802.15.4) connectivity to the well-loved Feather form factor. Released as open-source hardware under Creative Commons, PCB files are freely available on GitHub. It runs the ESP32-C6 RISC-V SoC at 160MHz with 4MB flash and is fully compatible with the broad ecosystem of Feather Wings and add-ons. The board includes a STEMMA QT connector for quick plug-and-play I2C sensor integration, a built-in RGB NeoPixel for status indication, and a LiPoly JST connector with USB-C charging managed by a MAX17048 fuel gauge. A dedicated NEOPIXEL_I2C_POWER pin allows software control of peripheral power, enabling deep sleep down to approximately 17µA. Firmware support spans CircuitPython (official board support via circuitpython.org), Arduino IDE via the Espressif board support package, MicroPython, ESPHome (via OpenThread component for Thread/Matter), and full ESP-IDF support. Note that unlike ESP32-S2/S3, the C6 does not have native USB — programming requires a USB-to-serial connection. With 22 GPIO, 6 analog inputs, SPI, I2C, UART, and PWM, it covers all standard sensor and actuator interfacing needs. Its Thread/802.15.4 support makes it suitable for Matter device prototyping alongside WiFi 6 for direct IP connectivity. ## Where to Buy - [Adafruit](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F5933&ref=openhardware.directory&product=adafruit-esp32-c6-feather&source=md-export) — 14.95 ## Resources - [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F5933&ref=openhardware.directory&product=adafruit-esp32-c6-feather&source=md-export) - [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fadafruit%2FAdafruit-ESP32-C6-Feather-PCB&ref=openhardware.directory&product=adafruit-esp32-c6-feather&source=md-export) - [wiki](https://openhardware.directory/r?to=https%3A%2F%2Flearn.adafruit.com%2Fadafruit-esp32-c6-feather&ref=openhardware.directory&product=adafruit-esp32-c6-feather&source=md-export) ## Tags `esp32-c6`, `feather`, `wifi6`, `thread`, `zigbee`, `matter`, `ble`, `stemma-qt`, `circuitpython`, `open-hardware`, `adafruit`, `neopixel` ## Images ![Adafruit ESP32-C6 Feather](https://nbg1.your-objectstorage.com/openhardware-directory/entities/adafruit-esp32-c6-feather/d09dbc3ffe08.jpg) ![Adafruit ESP32-C6 Feather](https://nbg1.your-objectstorage.com/openhardware-directory/entities/adafruit-esp32-c6-feather/4056b24cfbe8.jpg) ![Adafruit ESP32-C6 Feather](https://nbg1.your-objectstorage.com/openhardware-directory/entities/adafruit-esp32-c6-feather/55a3d7ed4dd1.jpg) ![Adafruit ESP32-C6 Feather](https://nbg1.your-objectstorage.com/openhardware-directory/entities/adafruit-esp32-c6-feather/33120984ad25.jpg) ![Adafruit ESP32-C6 Feather](https://nbg1.your-objectstorage.com/openhardware-directory/entities/adafruit-esp32-c6-feather/f60c6f4efd97.jpg) ![Adafruit ESP32-C6 Feather](https://nbg1.your-objectstorage.com/openhardware-directory/entities/adafruit-esp32-c6-feather/7da4a2447521.jpg) > **Battery Powered:** Li-Po --- [View full device page](https://openhardware.directory/devices/adafruit-esp32-c6-feather)