QSZNTEC ESP32-C5-N4

ESP32-C5-N4 WiFi 6 Development Board Instruction Manual

Model: ESP32-C5-N4 | Brand: QSZNTEC

1. Introduction

The ESP32-C5-N4 is a highly integrated single-chip low-power Wi-Fi 6 and BLE coexistence module designed for a wide range of IoT applications. It combines a powerful 240MHz CPU with advanced wireless capabilities, including dual-band 2.4G and 5G Wi-Fi 6 (802.11b/g/n/ax), BLE 5.0, and Zigbee 3.0/Thread 1.3 support. This module offers a rich set of configurable GPIOs and integrated peripherals, making it suitable for various control and communication tasks.

Figure 1.1 ESPC5-32 Module Structure Diagram
Figure 1.1: ESPC5-32 Module Structure. This diagram illustrates the internal architecture including RF Matching, Flash, 2.4 & 5 GHz radio, BLE, Zigbee, 240MHz MCU, memory (SRAM, ROM), PMU, and various interfaces like GPIO, SPI, MCPWM, UART, USB, CAN, and SDIO.

Key Features:

  • Wireless Connectivity: Dual-band 2.4G & 5G Wi-Fi 6 (802.11b/g/n/ax), BLE 5.0, Zigbee 3.0, Thread 1.3.
  • Processor: 240MHz RISC-V single-core microprocessor.
  • Memory: 320KB ROM, 400KB HP SRAM, 16KB LP SRAM.
  • Peripherals: Up to 22 configurable GPIOs, SPI, parallel IO, ADC, UART, I2C, I2S, RMT (TX/RX), LED PWM, USB serial port, JTAG debugging, MCPWM, SDIO2.0, GDMA, Twai controller.
  • Protocols: Supports Thread, Zigbee, Matter, HomeKit, MQTT.

2. Specifications

Detailed technical specifications for the ESP32-C5-N4 module are provided below.

Product Specification Table
Product Specification Table: General features, Wi-Fi features, Bluetooth features, IEEE 802.15.4 features, Peripheral interfaces, and typical applications.
Table 1.1 ESPC5-32 Wi-Fi Parameters
Table 1.1: ESPC5-32 Wi-Fi Parameters. Details frequency, transmit power, receiver sensitivity, and EVM for both 2.4G and 5G bands.
Table 1.1 ESPC5-32 Hardware and Software Parameters
Table 1.1 (Continued): ESPC5-32 Hardware and Software Parameters. Includes CPU, interfaces, working voltage/temperature, environment temperature, shape, Wi-Fi working modes, security modes, firmware update methods, SDK, and network protocols.

3. Pinout and Interface Definition

The ESP32-C5-N4 module provides a comprehensive set of pins for various functionalities. Understanding the pin definitions is crucial for proper integration and development.

Figure 2.1 ESPC5-32 Pins Definition and Working Mode Table
Figure 2.1: ESPC5-32 Pins Definition (Top view). This diagram labels all accessible pins. Also shown are Table 2.1 Working Mode (UART Download Mode, Flash Boot Mode) and the beginning of Table 2.2 Pins Function Definition.
Table 2.2 Pins Function Definition (Continued)
Table 2.2 (Continued): Pins Function Definition. Provides detailed descriptions for each pin, including its name, type, and primary function.

4. Physical Dimensions and Layout

The physical dimensions and recommended PCB layout for the ESP32-C5-N4 module are provided to assist with hardware design and integration.

Figure 3.1 Shape, Figure 3.2 Side View, and Figure 3.3 PCB Layout for ESPC5-32
Figure 3.1: Shape for ESPC5-32 (Top view) with dimensions. Figure 3.2: Side View for ESPC5-32 with height dimensions. Figure 3.3: Recommended PCB Layout for ESPC5-32 (Top view) showing pad dimensions and spacing in millimeters.

5. Module Schematic

For advanced users and hardware designers, the detailed module schematic is provided for reference.

Appendix: Module Schematic Diagram
Appendix: Module Schematic. A comprehensive circuit diagram detailing the internal connections and components of the ESPC5-32 module.

6. Setup

6.1 Power Supply

  • The module requires a 3.3V power supply. Ensure the power source is stable and capable of providing sufficient current for both the module and any connected peripherals.
  • Connect the 3.3V supply to the '3V3' pin and ground to the 'GND' pin.

6.2 Initial Connection

  • To begin development, connect the module to a development board or a custom PCB.
  • For programming and serial communication, connect the module's TX0 and RX0 pins to a USB-to-UART converter. Ensure the converter operates at 3.3V logic levels.
  • The 'EN' pin (Chip enable) should be pulled HIGH for normal operation.

6.3 Development Environment Setup

  • Install the ESP-IDF (Espressif IoT Development Framework) or Arduino IDE with ESP32 board support.
  • Follow the official Espressif documentation for setting up the toolchain and drivers for your operating system.

7. Operating Instructions

7.1 Flashing Firmware

  • To flash new firmware, put the module into UART Download Mode. This typically involves holding a 'Boot' button (if available on your development board) while resetting the module, or by manipulating specific GPIO pins (e.g., IO9 LOW, IO2 HIGH, then reset). Refer to the pin definition table for specific boot mode configurations.
  • Use the esptool.py utility or the flashing tool integrated into your IDE to upload your compiled firmware.

7.2 Wi-Fi and Bluetooth Operation

  • Utilize the ESP-IDF or Arduino libraries to configure and operate Wi-Fi (2.4G/5G) and Bluetooth (BLE 5.0) functionalities.
  • Example code for connecting to Wi-Fi networks, setting up Soft-AP, scanning for Bluetooth devices, and establishing BLE connections is widely available in the Espressif documentation and community forums.

7.3 GPIO Usage

  • The module offers up to 22 GPIOs. These can be configured as digital inputs/outputs, or for various peripheral functions (SPI, I2C, UART, ADC, etc.).
  • Always check the pinout diagram and function definition table before connecting external components to avoid damage.

8. Maintenance

  • Environmental Conditions: Operate the module within the specified working temperature range (-40°C to 85°C) and environment temperature range (-40°C to 105°C) to ensure optimal performance and longevity.
  • Cleaning: Keep the module clean and free from dust and moisture. Use a soft, dry cloth for cleaning. Avoid using liquids or abrasive cleaners.
  • Storage: Store the module in an anti-static bag in a dry, cool environment when not in use.
  • Firmware Updates: Regularly check for and apply firmware updates from Espressif to benefit from performance improvements, bug fixes, and new features.

9. Troubleshooting

Module not powering on:
  • Verify that the 3.3V power supply is correctly connected and stable.
  • Ensure the 'GND' pin is properly connected.
  • Check if the 'EN' pin is pulled HIGH.
Unable to flash firmware:
  • Confirm the module is in UART Download Mode (refer to Pinout section).
  • Check serial port connections (TX0/RX0) and ensure correct baud rate.
  • Verify that the USB-to-UART converter drivers are installed and the correct COM port is selected in your IDE.
  • Ensure the power supply is sufficient during flashing.
Wi-Fi/Bluetooth connectivity issues:
  • Check your code for correct Wi-Fi SSID/password or Bluetooth device addresses.
  • Ensure the antenna is properly connected (if external) or that there are no obstructions for the PCB antenna.
  • Verify that the module is within range of the Wi-Fi access point or Bluetooth device.
  • Check for power supply fluctuations that might affect radio performance.
GPIOs not responding:
  • Double-check the pin numbers in your code against the Pinout and Interface Definition.
  • Ensure the GPIOs are correctly configured as input/output or for their specific peripheral function.
  • Verify that external components are correctly wired and powered.

10. User Tips

  • Compatibility: The ESP32-C5-N4 module is designed to be fully compatible with Espressif's ESP32-C5 ecosystem, including their official IDE (ESP-IDF) and code. Developers familiar with Espressif products should find the transition seamless.
  • Power Consumption: For battery-powered applications, optimize your code to utilize the module's low-power modes (e.g., deep sleep) to extend battery life.
  • Antenna Design: When designing custom PCBs, pay close attention to the antenna layout guidelines provided by Espressif for optimal wireless performance.
  • Community Support: Leverage the extensive Espressif community forums and documentation for additional resources, examples, and troubleshooting assistance.

11. Warranty and Support

This product is typically covered by a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the seller's policy or contact the manufacturer directly.

Technical support for the ESP32-C5-N4 module is primarily provided through Espressif's official documentation, development forums, and community resources. For product-specific inquiries or issues, please contact your point of purchase.

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