Espressif ESP32-C6-DevKitM-1

Development Board

Code name: ESP32_C6_DEVKITM_1

Espressif ESP32-C6-DevKitM-1 is a development board based on the ESP32C6 microcontroller using RISCV architecture.

This board features a maximum CPU frequency of 160 MHz and 4MB flash memory.

About Espressif ESP32-C6-DevKitM-1

The ESP32-C6-DevKitM-1 is an entry-level development board based on the ESP32-C6-MINI-1(U) module, which includes a 4 MB SPI flash. This board integrates complete Wi-Fi 6, Bluetooth LE 5.0, Zigbee 3.0, and Thread 1.3 functionalities, making it ideal for IoT applications. Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing, allowing developers to connect peripherals with jumper wires or mount the board on a breadboard.

Where to Buy Espressif ESP32-C6-DevKitM-1

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Technical Specifications

Complete technical specification details for Espressif ESP32-C6-DevKitM-1

Connectivity

WiFi 802.11 ax b/g/n (2.4 GHz)

Bluetooth 5.3

BLE 5.3

Microcontroller

Model esp32c6

Clock Speed 160 MHz

Flash Size 4MB

Architecture riscv

✨ Features & Pins

Digital IO 22

Analog Input 6

PWM 6

Interrupts 16

Download Full Datasheet

Quick Setup

Copy-paste configs for Espressif ESP32-C6-DevKitM-1 - auto‑generated from this board's exact hardware specs.

ESP32C6 160 MHz 4MB DIO Xtensa

In Arduino IDE 2 select Esp32 C6 Devkitm 1 from the esp32 by Espressif package. In PlatformIO use board = esp32-c6-devkitc-1. ESP32C6 · 160 MHz · 4MB · DIO.

Tools menu settings

Board (select in Arduino IDE) Esp32 C6 Devkitm 1

CPU Frequency 160 MHz

Flash Size 4MB

Flash Mode DIO

Upload Speed 921600

Architecture Xtensa

In Arduino IDE 2, open Boards Manager, search "esp32" by Espressif and install it. Then go to Tools → Board and select "Esp32 C6 Devkitm 1" for the Espressif ESP32-C6-DevKitM-1.

platformio.ini


[env:esp32-c6-devkitm-1]
platform  = espressif32
board     = esp32-c6-devkitc-1
framework = arduino

; Exact hardware config for Espressif ESP32-C6-DevKitM-1
board_build.mcu        = esp32c6
board_build.f_cpu      = 160000000L
board_build.flash_size = 4MB
board_build.flash_mode = dio
board_upload.flash_size = 4MB

The board value is a close generic match - check PlatformIO board registry for an exact fit.

esp32: block (YAML)


esp32:
  board: esp32-c6-devkitc-1
  framework:
    type: arduino   # or "esp-idf"

# Espressif ESP32-C6-DevKitM-1 - 160 MHz ESP32C6
# Flash: 4MB | USB: N/A

Paste into your device's .yaml. See ESPHome ESP32 docs for full options.

esptool.py - flash command


esptool.py \
  --chip esp32c6 \
  --baud 921600 \
  write_flash \
    --flash_mode dio \
    --flash_size 4MB \
    0x1000 bootloader.bin \
    0x8000    partitions.bin \
    0xe000    boot_app0.bin \
    0x10000   firmware.bin

Install: pip install esptool - replace firmware.bin with your binary - bootloader at 0x1000

Espressif ESP32-C6-DevKitM-1 Pinout Diagram

Complete pin reference for Espressif ESP32-C6-DevKitM-1

The ESP32-C6-DevKitM-1 pinout provides access to multiple GPIOs and communication interfaces. Key power pins include 3.3V and GND. It features dedicated UART pins (TX, RX), I2C pins (SDA, SCL), and SPI pins (MISO, MOSI, SCK, CS), allowing integration with various peripherals. ADC pins are available for analog input applications. The board supports PWM and other digital functions, making it highly adaptable for embedded projects.

Safe Pins to Use

These pins are safe for general GPIO usage without boot or system conflicts

IO0

IO1

IO2

IO3

IO14

IO20

IO21

IO22

IO23

Why Are These Pins Safe?

✓ No boot sequence involvement

✓ No flash/PSRAM connections

✓ No USB or JTAG conflicts

✓ Freely assignable without issues

Pins to Avoid or Use with Caution

Reserved for critical functions. Misuse may cause boot failures, programming issues, or system conflicts.

Strapping Pins

Boot behavior & flash voltage

JTAG Debugging

Low-level debugging interface

USB Pins

USB Serial/JTAG communication

Flash/SPI Pins

Memory & PSRAM connections

UART Serial

Debugging & firmware uploads

PIN	Label	Why Avoid	Type
IO4	MTMS	Used during boot; required for JTAG debugging; flash data in internal-flash models.	🛠️ Strapping
IO5	MTDI	Used during boot; required for JTAG debugging; flash data in internal-flash models.	🛠️ Strapping
IO6	MTCK	Required for JTAG debugging; connected to flash clock in internal-flash models.	🔗 JTAG
IO7	MTDO	Required for JTAG debugging; connected to flash data in internal-flash models.	🔗 JTAG
IO8	GPIO8	Determines boot mode; pulling low at reset can prevent normal boot.	🛠️ Strapping
IO9	GPIO9	Pulling low on reset forces the ESP32-C6 into download mode instead of normal boot.	🛠️ Strapping
IO12	USB_D-	Dedicated to USB communication; avoid if using USB functionality.	🔌 USB
IO13	USB_D+	Dedicated to USB communication; avoid if using USB functionality.	🔌 USB
IO15	JTAG_SEL	Controls JTAG input source at boot; avoid altering its state.	🔗 JTAG
IO16	U0TXD	Default UART0 transmit pin; using it may interfere with serial console or programming.	📡 UART
IO17	U0RXD	Default UART0 receive pin; using it may interfere with serial console or programming.	📡 UART
IO18	FSPIQ	Connected to internal flash; using as GPIO can disrupt flash operations.	⚡ Flash
IO19	FSPID	Connected to internal flash; using as GPIO can disrupt flash operations.	⚡ Flash

Useful Links

Datasheets and resources for Espressif ESP32-C6-DevKitM-1

Board Datasheet

Technical specifications

ESP32C6 Datasheet

Microcontroller reference

Espressif ESP32-C6-DevKitM-1 Custom Pin Mapping

Pin configuration and GPIO mapping for Espressif ESP32-C6-DevKitM-1

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Function	ESP Pin	I/O Type	Description
1	5V	5V	POWER INPUT	5V power input for the board
2	GND	GND	POWER GROUND	Ground connection
3	3V3	3.3V	POWER OUTPUT	3.3V power output for peripherals
4	TX	TX	TX	TX
5	RX	RX	RX	RX
6	IO0	GP0	BIDIRECTIONAL	GPIO, ADC pin
7	IO1	GP1	BIDIRECTIONAL	GPIO, ADC pin
8	IO2	GP2	BIDIRECTIONAL	GPIO, ADC pin
9	IO3	GP3	BIDIRECTIONAL	GPIO, ADC pin
10	IO4	GP4	BIDIRECTIONAL	GPIO, ADC pin
11	IO5	GP5	BIDIRECTIONAL	GPIO, ADC pin
12	IO6	GP6	BIDIRECTIONAL	GPIO, ADC pin
13	IO7	GP7	BIDIRECTIONAL	GPIO
14	IO8	GP8	BIDIRECTIONAL	GPIO, RGB LED, BOOT, ROM
15	IO9	GP9	BIDIRECTIONAL	GPIO, BOOT
18	IO12	GP12	BIDIRECTIONAL	GPIO, USB_D-
19	IO13	GP13	BIDIRECTIONAL	GPIO, USB_D+
20	IO14	GP14	BIDIRECTIONAL	GPIO
21	IO15	GP15	BIDIRECTIONAL	GPIO, JTAG
22	IO16	GP16	BIDIRECTIONAL	GPIO
23	IO17	GP17	BIDIRECTIONAL	GPIO
24	IO18	GP18	BIDIRECTIONAL	GPIO
25	IO19	GP19	BIDIRECTIONAL	GPIO
26	IO20	GP20	BIDIRECTIONAL	GPIO
27	IO21	GP21	BIDIRECTIONAL	GPIO
28	IO22	GP22	BIDIRECTIONAL	GPIO
29	IO23	GP23	BIDIRECTIONAL	GPIO

Legend

Function Pin role

GPIO ESP32 pin

I/O Direction

# Pin number

Pin Mappings

Complete pinout and GPIO mapping for Espressif ESP32-C6-DevKitM-1

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Analog	Touch	PWM
0	A0	T0	PWM
1	A1	T1	PWM
2	A2	T2	PWM
3	A3	T3	PWM
4	A4	T4	PWM
5			PWM
6			PWM
7			PWM
8			PWM
9			PWM
10			PWM
11			PWM
12			PWM
13			PWM
14			PWM
15			PWM
16			PWM
17			PWM
18			PWM
19			PWM
20			PWM
21			PWM

Legend

A0 Analog input

T0 Touch sensor

PWM PWM capable

RX/TX Serial pins

LED Built-in LED

# Pin number

Default Tools & Configuration

Build and upload settings for Espressif ESP32-C6-DevKitM-1

Setting	Value
Bootloader tool	esptool_py
Uploader tool	esptool_py
Network uploader tool	esp_ota
Bootloader address	`0x1000`
Flash mode	dio
Boot mode	dio
Maximum upload size	2048 KB (2097152 bytes)
Maximum data size	320 KB (327680 bytes)