Espressif ESP32-C5-MINI-1-N4 Wi-Fi 6 & BLE Module

The module is fully supported by Espressif's official ESP-IDF (IoT Development Framework) and the Arduino core for ESP32. You can develop applications in C/C++ using ESP-IDF for maximum control and low-level access to Wi-Fi 6, BLE, and Thread/Zigbee stacks. The Arduino core provides a simpler, library-based approach for rapid prototyping. Both frameworks support over-the-air (OTA) updates, deep sleep power management, and all integrated peripherals via PlatformIO or native toolchains.

Power the ESP32-C5-MINI-1-N4 with a regulated 3.3V supply (3.0V to 3.6V range) connected to the 3V3 and GND pins. Typical active current consumption depends on the wireless mode; Wi-Fi transmission can draw several hundred milliamps, while BLE or Zigbee operation is lower. The module supports various low-power sleep modes, with deep sleep current in the microamp range, which is critical for battery-powered sensor nodes. Always use a stable power source capable of supplying peak currents and include decoupling capacitors near the module's power pins.

The ESP32-C5-MINI-1-N4 variant comes with a fixed onboard PCB antenna. For designs requiring an external antenna, you would need to select a different module variant from Espressif (e.g., one with an IPEX connector). The RF path is factory-configured for the integrated antenna. If using an external antenna, you must ensure impedance matching (50 ohms) and use a certified antenna for the target frequency bands (2.4 GHz and 5 GHz for Wi-Fi, 2.4 GHz for BLE/Zigbee/Thread) to comply with regional regulatory standards.

Firmware is flashed via the integrated USB Serial/JTAG interface, which appears as a COM port when connected to a host computer. Using ESP-IDF or Arduino IDE, you can compile your code and upload it directly. For production or headless programming, you can use the UART interface (GPIO pins for TX/RX) with an external USB-to-serial adapter. The module supports secure boot and flash encryption features available in ESP-IDF. Ensure the GPIO0 pin is pulled low during reset to enter the serial bootloader mode for initial flashing.