FireBeetle 2 ESP32-C5 IoT Development Board

The FireBeetle 2 ESP32-C5 is a low-power IoT board with dual-band Wi-Fi 6, BLE, Zigbee and Thread support, plus solar charging and ultra-low sleep current — ideal for smart home and advanced IoT projects.

The FireBeetle 2 ESP32-C5 is a low-power IoT development board built for smart home systems and more demanding IoT projects. It’s based on Espressif’s ESP32-C5 chip, which supports dual-band Wi-Fi 6 (2.4 GHz and 5 GHz) and brings together multiple wireless protocols, including BLE, Zigbee and Thread, on a single platform.

At its core is a 240 MHz RISC-V processor with 384 KB SRAM and 4 MB Flash, offering plenty of performance while keeping power consumption low. In deep sleep, the board draws as little as 21 μA, making it well suited for battery-powered or energy-harvesting projects. The onboard power management system also supports solar charging, adding flexibility for outdoor or off-grid applications.

This combination of wireless capability, processing power and efficient power management makes the FireBeetle 2 ESP32-C5 a strong choice for applications such as low-latency robotics control, solar-powered environmental sensors, or custom multiprotocol devices integrated into a Home Assistant setup.

Features

• ESP32-C5 with dual-band Wi-Fi 6 (2.4 GHz & 5 GHz)
• Supports BLE, Zigbee 3.0, Thread 1.3 and Wi-Fi
• Matter-ready (Wi-Fi or Thread end devices)
• 240 MHz RISC-V CPU, 384 KB SRAM, 4 MB Flash
• Ultra-low 21 μA deep-sleep current
• Multiple power inputs: USB Type-C, 5V DC, PH2.0 LiPo
• Integrated solar charging (4.5–6V panel supported)
• Controllable 3.3V output (VCC_EN) for peripheral power saving
• Suitable for Home Assistant, MQTT, Zigbee and Thread gateways
• Onboard GDI interface for DFRobot displays
• Compatible with Gravity and Fermion sensor ecosystems
• Programmable via Arduino (C/C++) and MicroPython

Specifications

Basic Parameters

• Operating Voltage: 3.3V
• USB Type-C Input Voltage: 5V DC
• VIN Input Voltage: 5V DC or 4.5–6V solar panel
• Maximum Charging Current: 0.5A
• Sleep Current: 21 μA (deep sleep, battery powered)
• Module Dimensions: 25.4 × 60 mm

Hardware

• Processor: RISC-V single-core
• Clock Frequency: 240 MHz
• SRAM: 384 KB
• LP SRAM: 16 KB
• ROM: 320 KB
• Flash: 4 MB

Wi-Fi

• Frequency Bands: 2.4 GHz & 5 GHz (1T1R)
• Protocols: IEEE 802.11 a/b/g/n/ac/ax
• Data Rates:
  • 802.11a/b/g/n: up to 150 Mbps
  • 802.11ax: 20 MHz-only, non-AP mode
• Operating Modes:
  • Station
  • SoftAP
  • SoftAP + Station
  • Promiscuous

Bluetooth

• Protocols: Bluetooth 5, Bluetooth Mesh
• Data Rates: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps

IEEE 802.15.4

• Standard: IEEE 802.15.4-2015
• Frequency Band: 2.4 GHz
• Data Rate: 250 Kbps
• Supported Protocols: Thread 1.3, Zigbee 3.0

Interfaces & Peripherals

• Digital I/O: 18
• SPI: 1
• UART: 3 (including 1× LP UART)
• I²C: 2 (including 1× LP I²C)
• I²S: 1
• LED PWM Controller: 6 channels
• Infrared Transceiver:
  • 5 transmitting channels
  • 5 receiving channels
• ADC: 1× 12-bit SAR ADC (7 channels)
• DMA Controller:
  • 3 receiving channels
  • 3 transmitting channels

Resources

• Product Wiki
• Tutorial - Connecting to Home Assistant

Package Contents

• 1x FireBeetle 2 ESP32-C5 IoT Development Board
• 2x 20pin-2.54mm pitch pin header