1. Introduction
The ESP32-C6-DevKitC-1 is a core development board featuring the ESP32-C6 SoC. This advanced System-on-Chip supports Wi-Fi 6 (2.4GHz), Bluetooth 5 (LE), and 802.15.4 protocols (including Zigbee 3.0 and Thread), making it ideal for a wide range of Internet of Things (IoT) applications. It offers industry-leading radio frequency performance, robust security mechanisms, and ample memory resources.
The ESP32-C6 is equipped with a high-performance RISC-V 32-bit processor operating at up to 160MHz, complemented by a low-power RISC-V 32-bit processor running at up to 20MHz. It includes built-in 512KB SRAM and 320KB ROM, with support for external flash memory. The board provides 30 (for QFN40 package) or 22 (for QFN32 package) programmable GPIO pins, supporting various interfaces such as SPI, UART, I2C, I2S, RMT, TWAIPWM, motor control PWM, and SDIO. Additionally, it integrates a 12-bit ADC and a temperature sensor.


2. Specifications
| Feature | Detail |
|---|---|
| Brand Name | QSZNTEC |
| Type | Module |
| SoC | ESP32-C6 |
| Wireless Protocols | Wi-Fi 6 (2.4GHz), Bluetooth 5 (LE), 802.15.4 (Zigbee 3.0, Thread) |
| High-Performance CPU | RISC-V 32-bit, up to 160MHz |
| Low-Power CPU | RISC-V 32-bit, up to 20MHz |
| Internal Memory | 512KB SRAM, 320KB ROM |
| External Memory Support | Yes (External Flash) |
| Programmable GPIO Pins | 30 (QFN40) or 22 (QFN32) |
| Peripherals | SPI, UART, I2C, I2S, RMT, TWAIPWM, Motor Control PWM, SDIO, 12-bit ADC, Temperature Sensor |
| Dimensions (Approx.) | Length: 58.1mm (2287.0mil), Width: 25.5mm (1000.0mil) |
| Module Dimensions (Approx.) | Length: 38.1mm (1500.0mil), Width: 22.9mm (900.0mil) |

3. Hardware Overview
The ESP32-C6-DevKitC-1 board integrates several key components for its operation and connectivity. Below is a diagram highlighting the main parts:

- ESP32-C6-N4 Chip: The main System-on-Chip providing Wi-Fi 6, Bluetooth LE, and 802.15.4 capabilities.
- Power Chip: Regulates power supply to the board components.
- WS2812: An addressable RGB LED for visual feedback.
- CH340: USB-to-serial converter chip, facilitating communication between the board and a computer via the UART interface.
- Reset Button: Used to restart the ESP32-C6 chip.
- BOOT Button: Used to put the ESP32-C6 into download mode for firmware flashing.
- CH340 USB: Type-C USB port connected to the CH340 for serial communication and power.
- MCU USB: Type-C USB port directly connected to the ESP32-C6's native USB interface (if applicable for direct USB programming).
- PWR Light: Power indicator light.
- TX Light: Transmit data indicator light.
- RX Light: Receive data indicator light.
4. Setup & Installation
To begin using your ESP32-C6-DevKitC-1 core board, you will typically need to connect it to a computer and flash firmware onto the ESP32-C6 chip. Ensure you have the necessary development environment set up on your computer (e.g., ESP-IDF or Arduino IDE with ESP32 support).
4.1. USB Cable Connection
The ESP32-C6 core board features Type-C USB interfaces for communication and power. It is crucial to use a data-capable USB cable for communication with your computer.

Important: Distinguish between charging-only USB cables and data-capable USB cables. Commonly, some USBA to Type-C cables are designed only for charging and cannot be used for data communication between the ESP32 board and your host computer. Ensure your cable supports data transfer.
5. Operating Instructions: Firmware Download
To program your ESP32-C6-DevKitC-1 board, you will need to download and write firmware (program files) to the ESP32-C6 chip. This process is typically done via the ESP32 USB to serial port.
5.1. Using the Flash Download Tool (Windows)
For Windows environments, you can use the official Espressif Flash Download Tool (e.g., ESP32C6 Flash Download Tool V3.9.5 or later) to flash your firmware.

Firmware Download Steps:
- Erase Operation: An erase operation is generally required before downloading new firmware.
- Prepare for Download:
- Ensure the core board is powered on.
- Press and hold the BOOT button.
- While holding BOOT, press the RESET button.
- Release RESET, then release BOOT. This puts the ESP32-C6 into download mode.
- Configure the Tool:
- Select the correct ChipType (e.g., ESP32-C6).
- Set WorkMode to "Develop".
- Choose the appropriate LoadMode. This depends on which USB interface you are using:

Figure 7: LoadMode selection in the download tool, indicating "UART" for the CH340 USB port and "USB" for the native MCU USB port. - If using the CH340 USB port (for serial communication), select UART.
- If using the native MCU USB port (if available and supported for direct programming), select USB.
- Check the number before the data file.
- Ensure the starting address is filled in correctly.
- Choose the correct serial port (COM port) corresponding to your connected board.
- Start Download: Click the START button in the download tool to begin flashing the firmware.
6. Maintenance
To ensure the longevity and optimal performance of your ESP32-C6-DevKitC-1 board, follow these general maintenance guidelines:
- Handle with Care: Avoid dropping the board or subjecting it to physical shock.
- Keep Dry: Protect the board from moisture and liquids.
- Cleanliness: Keep the board free from dust and debris. Use a soft, dry brush or compressed air for cleaning if necessary.
- Static Electricity: Always handle the board in an anti-static environment to prevent damage from electrostatic discharge (ESD).
- Storage: Store the board in a cool, dry place, preferably in its original packaging or an anti-static bag when not in use.
7. Troubleshooting
If you encounter issues with your ESP32-C6-DevKitC-1 board, consider the following common troubleshooting steps:
- Board Not Detected:
- Ensure you are using a data-capable USB Type-C cable (not charging-only).
- Verify that the correct USB drivers (e.g., for CH340) are installed on your computer.
- Try a different USB port on your computer.
- Restart your computer.
- Firmware Upload Failure:
- Confirm the board is in download mode (press BOOT, then RESET, release RESET, then BOOT).
- Check that the correct COM port is selected in your flashing tool/IDE.
- Verify the baud rate setting in the flashing tool.
- Ensure the firmware file paths and addresses are correct.
- Try erasing the flash completely before attempting to re-upload.
- No Power Indicator (PWR LED):
- Check the USB cable connection and ensure it's securely plugged into both the board and a power source (computer USB port).
- Try a different USB cable or power source.
- Unexpected Behavior:
- Ensure your code is correctly compiled and uploaded.
- Check for any short circuits or incorrect wiring if external components are connected.
- Consult the Espressif documentation and community forums for ESP32-C6 for specific programming or hardware issues.
8. User Tips
No specific user tips were available from buyer reviews or Q&A for this product at the time of manual creation. However, general tips for development boards include:
- Always double-check pin assignments before connecting external components to avoid damage.
- Start with simple example projects to familiarize yourself with the board's functionality.
- Utilize the extensive online resources and community support available for ESP32-C6 development.
9. Warranty & Support
For warranty information and technical support, please refer to the official website of QSZNTEC or contact your point of purchase. Keep your purchase receipt as proof of purchase.
10. Package Contents
The standard package for the ESP32-C6-DevKitC-1 includes:
- ESP32-C6-N4 Module *1
