How to Use ESP32-C6 Super Mini: Examples, Pinouts, and Specs

The ESP32-C6 Super Mini is a compact and powerful microcontroller designed for IoT applications and embedded systems. It features integrated Wi-Fi 6, Bluetooth 5.0, and IEEE 802.15.4 (Thread/Zigbee) capabilities, making it a versatile choice for modern wireless communication needs. Its small form factor and energy-efficient design make it ideal for battery-powered devices, smart home systems, wearables, and industrial automation.

• Smart home devices (e.g., smart plugs, thermostats, and lighting systems)
• IoT sensors and gateways
• Wearable technology
• Industrial automation and monitoring
• Wireless communication hubs (Wi-Fi, Bluetooth, Zigbee)

The following table outlines the key technical details of the ESP32-C6 Super Mini:

The ESP32-C6 Super Mini has a total of 22 GPIO pins, which are multifunctional. Below is the pinout description:

1. Power Supply: Provide a stable 3.3V power supply to the 3V3 pin. Connect the GND pin to the ground of your circuit.
2. Boot Mode: To upload code, connect GPIO0 to GND during power-up or reset. Disconnect GPIO0 from GND after uploading.
3. Programming: Use a USB-to-UART adapter to connect the ESP32-C6 Super Mini to your computer. Connect the adapter's TX to GPIO3 (RX) and RX to GPIO1 (TX).
4. Peripherals: Connect sensors, actuators, or other peripherals to the GPIO pins. Use the appropriate communication protocol (e.g., I2C, SPI, UART).

• Voltage Levels: Ensure all connected peripherals operate at 3.3V logic levels to avoid damaging the ESP32-C6.
• Antenna Placement: For optimal wireless performance, avoid placing metal objects near the onboard antenna.
• Power Consumption: Use the ultra-low power modes for battery-powered applications to extend battery life.

The ESP32-C6 Super Mini can communicate with an Arduino UNO via UART. Below is an example of how to send data from the Arduino to the ESP32-C6:

void setup() {
  Serial.begin(9600); // Initialize UART communication at 9600 baud
}

void loop() {
  Serial.println("Hello from Arduino!"); // Send data to ESP32-C6
  delay(1000); // Wait for 1 second
}

void setup() {
  Serial.begin(9600); // Initialize UART communication at 9600 baud
  Serial.println("ESP32-C6 Ready!"); // Confirm ESP32-C6 is running
}

void loop() {
  if (Serial.available() > 0) { // Check if data is available
    String data = Serial.readString(); // Read incoming data
    Serial.print("Received: "); // Print received data
    Serial.println(data);
  }
}

1. ESP32-C6 Not Responding
   • Solution: Ensure the EN pin is connected to 3.3V. Check the power supply for stability.
2. Code Upload Fails
   • Solution: Verify that GPIO0 is connected to GND during boot. Check the USB-to-UART adapter connections.
3. Wi-Fi or Bluetooth Not Working
   • Solution: Ensure the onboard antenna is not obstructed. Check the firmware for proper configuration.

1. Can I power the ESP32-C6 with 5V?
   • No, the ESP32-C6 operates at 3.3V. Use a voltage regulator if your power source is 5V.
2. How do I reset the ESP32-C6?
   • Pull the RST pin low momentarily to reset the microcontroller.
3. What is the maximum range of Wi-Fi and Bluetooth?
   • Wi-Fi range is approximately 50 meters indoors, while Bluetooth range is around 10 meters, depending on environmental factors.

This concludes the documentation for the ESP32-C6 Super Mini. For further assistance, refer to the official datasheet or community forums.