ESP32-C6 Super Mini Development Board

Code name: ESP32C6_DEV

ESP32-C6 Super Mini development board is based on esp32c6 microcontroller and uses riscv32 architecture. This board has a maximum CPU frequency of 160 MHz and a flash size of 4MB.

⚡ Tech Specs 📌 Pinout 💡 On-Board LEDs 🔗 Useful Links 🗺️ Mappings 🛠️ Tools

About ESP32-C6 Super Mini

The ESP32-C6 SuperMini is a compact and powerful development board featuring the Espressif ESP32-C6 WiFi 6 and Bluetooth dual-mode chip. With support for IEEE 802.11ax WiFi 6 (2.4 GHz) and Bluetooth 5 (LE) with Bluetooth Mesh, it ensures fast and reliable wireless connectivity.

At its core, the ESP32-C6 SuperMini is powered by a RISC-V 32-bit single-core processor running at up to 160 MHz, offering efficient performance for IoT applications. It includes 512 KB of high-performance SRAM, 16 KB of low-power SRAM, and 4 MB of flash memory, giving your projects plenty of space to run smoothly.

Designed with ease of use in mind, the board comes with a USB Type-C interface for simple programming and connectivity. Plus, its compact form factor makes it ideal for space-constrained applications.

With versatile interfaces (UART, I2C, SPI) and a rich set of GPIOs, the ESP32-C6 SuperMini is a great choice.

🆚 Wondering how the ESP32-S3 SuperMini compares to other SuperMini boards? Check out our full comparison guide to see how it stacks up against the C3, C3 Plus, C6, and H2.

Where to Buy

Starting from

5$ per unit

Amazon.com Ships worldwide

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Amazon.de Ships to EU

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AliExpress Best value

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Prices are subject to change. We earn from qualifying purchases as an Amazon Associate.

Technical Specifications

🛰️ 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 riscv32

✨ Features

Ultra-small size for embedded applications
Ultra-low power consumption with low-power working modes
RISC-V 32-bit single-core CPU running at up to 160 MHz
512 KB high-performance SRAM and 16 KB low-power SRAM
WiFi 6 (802.11ax, 2.4 GHz) with 40 MHz bandwidth support
Bluetooth 5 (LE) and Bluetooth Mesh support
USB Type-C interface for programming and connectivity
Stamp hole design for direct soldering onto PCB
11 digital IO pins
22 external interrupt pins
6 analog input pins
11 PWM pins

View Full Datasheet

ESP32-C6 Super Mini Pinout

The ESP32-C6 Super Mini pinout is designed for versatile connectivity in a compact format. The board provides essential power pins such as 5V, 3.3V, and GND for stable power delivery.

It features dedicated communication interfaces including RX and TX for UART, SDA and SCL for I2C, and MISO, MOSI, SCK, and SS for SPI, ensuring seamless integration with peripherals.

For analog input, the ESP32-C6 Super Mini offers ADC pins labeled A0 to A5, supporting sensor applications. Additionally, it features a stamp hole design for direct soldering, providing improved reliability for embedded applications.

✅ Safe Pins to Use

For general GPIO usage, these are the safest and most flexible choices:

🔹 IO0

🔹 IO1

🔹 IO2

🔹 IO3

🔹 IO14

🔹 IO20

🔹 IO21

🔹 IO22

🔹 IO23

Why Are These Pins Safe?

Not involved in bootstrapping → No impact on device boot mode or system startup
Not linked to flash memory or PSRAM → Won't interfere with storage or memory access
Not dedicated to USB or JTAG → Free for general use without affecting debugging
No special hardware connections → Freely assignable without internal conflicts

⚠️ Pins to Avoid or Use with Caution

Some pins are reserved for critical functions like bootstrapping, JTAG debugging, USB communication, and flash memory operations. Misusing these pins may lead to boot failures, programming issues, USB conflicts, or disruptions in flash storage.

Critical Pin Categories:

🛠️ Strapping Pins: Control boot behavior and flash voltage selection
🔗 JTAG Debugging Pins: Required for low-level debugging
🔌 USB Communication Pins: Used for USB Serial/JTAG communication
⚡ Flash Memory & SPI Pins: Connected to SPI flash memory and PSRAM
📡 UART Serial Communication Pins: Used for debugging and firmware uploads

PIN	Label	Reason	Function
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
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

ESP32-C6 Super Mini On-Board LEDs

The ESP32-C6 Supermini features three onboard LEDs: a green battery indicator, a user-controllable status LED, and a WS2812 RGB LED. The WS2812 is connected to GPIO8, while the simple status LED is on GPIO15.

🟢 Green LED – Battery Charge Indicator

GPIO: None
Control: Not controllable via GPIO
Behavior:

⚡ Charging → LED on
✅ Battery connected → LED off
🔋 No battery → LED blinks

🔵 Status LED – User Controllable

GPIO: GPIO15
Control: digitalWrite(), ESPHome GPIO output

Arduino Example:


void setup() {
  pinMode(15, OUTPUT);
}

void loop() {
  digitalWrite(15, HIGH);
  delay(1000);
  digitalWrite(15, LOW);
  delay(1000);
}

ESPHome Example:


output:
  - platform: gpio
    pin: 15
    id: status_led

light:
  - platform: binary
    name: "Status LED"
    output: status_led

ESPHome GPIO Output Documentation →

🌈 WS2812 LED – Programmable RGB

GPIO: GPIO8
Control: FastLED, NeoPixel, etc.

Arduino (FastLED) Example:

#include <FastLED.h>

#define NUM_LEDS 1
#define DATA_PIN 8

CRGB leds[NUM_LEDS];

void setup() {
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
}

void loop() {
  leds[0] = CRGB::Red; FastLED.show(); delay(1000);
  leds[0] = CRGB::Green; FastLED.show(); delay(1000);
  leds[0] = CRGB::Blue; FastLED.show(); delay(1000);

ESPHome (NeoPixelBus) Example:

light:
  - platform: neopixelbus
    type: GRB
    pin: 8
    num_leds: 1
    name: "Onboard RGB LED"

ESPHome NeopixelBus Documentation →

ESP32-C6 Super Mini Useful Links

🔗 Datasheet

https://ae01.alicdn.com/kf/Sf79ac11855e14e3d8dfd77ca664d8d69m.jpg

🔗 ESP32C6 Datasheet

https://www.espressif.com/sites/default/files/documentation/esp32-c6_datasheet_en.pdf

ESP32-C6 Super Mini Pin Mappings

This development board provides 11 digital IO pins, out of which 22 can be used as external interrupt pins , 6 as analog input pins and 11 pins have Pulse-Width Modulation (PWM) .

Pin	Function	ESP Pin	Input/Output	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
15	IO9	GP9	BIDIRECTIONAL	GPIO, Boot
16	IO12	GP12	BIDIRECTIONAL	GPIO
17	IO13	GP13	BIDIRECTIONAL	GPIO
18	IO14	GP14	BIDIRECTIONAL	GPIO
19	IO15	GP15	BIDIRECTIONAL	GPIO, LED
20	IO18	GP18	BIDIRECTIONAL	GPIO
21	IO19	GP19	BIDIRECTIONAL	GPIO
22	IO20	GP20	BIDIRECTIONAL	GPIO
23	IO21	GP21	BIDIRECTIONAL	GPIO
24	IO22	GP22	BIDIRECTIONAL	GPIO
25	IO23	GP23	BIDIRECTIONAL	GPIO

Function Pin Function

ESP Pin Pin on ESP32

I/O Input/Output Pin

Description Pin Description

ESP32-C6 Super Mini Pins Mapping Arduino IDE

Below you can find the ESP32-C6 Super Mini pinout. This development board provides 11 digital IO pins, out of which 22 can be used as external interrupt pins, 6 as analog input pins and 11 pins have Pulse-Width Modulation (PWM).

Pin	Analog	Other
0	A0
1	A1
2	A2
3	A3
4	A4	SCK
5	A5	MISO
6		MOSI
7		SS
8		SDA
9		SCL
20		RX
21		TX

Analog Analog input pins

Touch Touch pins

Function Function pins

RX / TX Receive/Transmit

LED_BUILTIN Built-in LED

PWM Pulse-Width Modulation

Default Tools

Bootloader tool	esptool_py
Uploader tool	esptool_py
Network uploader tool	esp_ota
Bootloader address	0x0
Flash mode	qio
Boot mode	qio
Maximum upload size	1280 Kb (1310720 B)
Maximum data size	320 Kb (327680 B)

The ESP32-C6 Super Mini development board by default uses esptool_py uploader tool, esp_ota network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x0". Flash mode and boot mode for ESP32-C6 Super Mini development board by default is qio and qio respectively.