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ESP32-C6-DevKitC-1 specs, pinout & datasheets

Microcontroller board · Espressif · Released 2023

Espressif’s ESP32-C6 board: Wi-Fi 6, Bluetooth LE 5 and an 802.15.4 radio for Thread and Zigbee on one RISC-V chip.

CPU
RISC-V high-power core plus a low-power RISC-V core
Clock
Up to 160 MHz (low-power core up to 20 MHz)
RAM
512 KB high-power SRAM, 16 KB low-power SRAM
Flash
8 MB
Wireless
Wi-Fi 6 (2.4 GHz 802.11ax); Bluetooth LE 5; IEEE 802.15.4 (Thread, Zigbee)
I/O voltage
3.3 V
Released
2023
Status
In production

Draft entry: these specs were compiled from the linked sources and are waiting for a second check. Spotted a mistake? Use the form at the end of the page.

Specifications

9 specs
Chip / SoC
Espressif ESP32-C6 in an ESP32-C6-WROOM-1 module[1]
CPU
RISC-V high-power core plus a low-power RISC-V core[2]
Clock
Up to 160 MHz (low-power core up to 20 MHz)[2]
RAM
512 KB high-power SRAM, 16 KB low-power SRAM[2]
Flash
8 MB[1]
I/O voltage
3.3 V[2]
Wireless
Wi-Fi 6 (2.4 GHz 802.11ax); Bluetooth LE 5; IEEE 802.15.4 (Thread, Zigbee)[2]
USB
Two USB-C ports: USB serial/JTAG and USB-to-UART[1]
Upload limits
8 MB flash, 320 KB RAM[5]

Upload limits are what a sketch or firmware may use after the bootloader, as the build tools enforce them, not the chip’s full memory.

Can I still use it?

5 platforms
Arduino framework
Supported[4]Arduino core for the ESP32 by Espressif.
MicroPython
Supported[8]
CircuitPython
Supported[7]
Zephyr RTOS
Supported[6]
ESP-IDF
Supported[3]

As published by each project, checked weekly. A platform not listed has no published information here, which is not the same as no support.

Datasheets and documents

4 documents

Pinout

23 pins
Pin names in firmware (23 pins)
From the firmware’s board definition[9]
Chip pinBoard names
GPIO0IO0
GPIO1IO1
GPIO2IO2
GPIO3IO3
GPIO4IO4
GPIO5IO5
GPIO6IO6
GPIO7IO7
GPIO8IO8, NEOPIXEL
GPIO9IO9
GPIO10IO10
GPIO11IO11
GPIO12IO12
GPIO13IO13
GPIO15IO15
GPIO16TX
GPIO17RX
GPIO18IO18
GPIO19IO19
GPIO20IO20
GPIO21IO21
GPIO22IO22
GPIO23IO23

Gotchas

1 known issues
  • 802.15.4 and Wi-Fi share the radio. Thread or Zigbee and Wi-Fi coexist by time-sharing one 2.4 GHz radio; heavy Wi-Fi traffic affects the mesh network.[2]

History and use today

Editorial

History

Released in 2023, the C6 was Espressif's first chip with Wi-Fi 6 and an 802.15.4 radio, aimed at Matter smart-home devices.[1]

Still useful for

A good pick for Matter, Thread and Zigbee experiments that also need Wi-Fi.

Projects from the archive

1 build

Sources

9 sources
  1. ESP32-C6-DevKitC-1 user guide, Espressif
  2. ESP32-C6 Series datasheet, Espressif
  3. ESP-IDF Programming Guide, Espressif
  4. Arduino core for the ESP32, Espressif
  5. PlatformIO board definition (esp32-c6-devkitc-1) at 1152c8f691
  6. Zephyr board definition (esp32c6_devkitc) at 3c61a12bdd
  7. CircuitPython board definition (espressif_esp32c6_devkitc_1_n8) at 83b54473a1
  8. MicroPython board definition (ESP32_GENERIC_C6) at 19e685eca9
  9. CircuitPython pin definitions (espressif_esp32c6_devkitc_1_n8) at 395b187017

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Reviewed by hand

Every report is read by a person and checked against a source before anything changes. Please link one if you have it.

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