Is the FireBeetle ESP32 IoT Microcontroller too bulky for your compact project? Meet the newly launched Beetle ESP32 Microcontroller, designed with a mini footprint of just 1.38” × 1.34”. This ultra-compact version of the FireBeetle ESP32 is perfect for DIY makers and electronics engineers. It offers a simplified form with 4 analog ports, 4 digital ports, UART, and I2C interfaces, making it an ideal alternative to larger boards.
Key Features
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Mini size: Just 35mm × 34mm
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Plug-and-play: Supports programming via Micro USB, no external programmer required
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Gold-plated I/O ports: Easy to connect wires or sew onto fabric without soldering
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Honeycomb-style power interfaces: Simplify wiring and integration
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Built-in Wi-Fi and Bluetooth: Ideal for IoT applications
Specifications
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USB Supply Voltage: 5.0V
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VIN Supply Voltage: DC 3.5~6.5V
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Processor: Tensilica LX6 dual-core, supports fast connection and independent programming
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Frequency: 240MHz
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SRAM: 520KB
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Flash: 16Mbit
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Wi-Fi Protocol: 802.11 b/g/n/d/e/i/k/r (Up to 150 Mbps, supports A-MPDU & A-MSDU)
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Bluetooth: Compliant with Bluetooth v4.2 (BR/EDR/BLE)
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Digital Pins: D2, D3, D4, D7
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Analog Pins: A0, A1, A2, A3
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I2C Interface: 1
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UART: 1
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Dimensions: 35mm × 34mm / 1.38” × 1.34”
IoT Microcontroller Comparison Table
This table compares the Beetle ESP32 with other IoT boards such as WiDo, FireBeetle ESP8266, and FireBeetle ESP32, highlighting differences in size, CPU speed, Flash memory, interface availability, and power requirements.
| Name | WiDo | Beetle ESP32 | FireBeetle ESP8266 | FireBeetle ESP32 |
|---|---|---|---|---|
| SKU | DFR0321 | DFR0575 | DFR0489 | DFR0478 |
| Microcontroller | CC3000 | ESP32 | ESP8266 | ESP32 |
| Flash (Mbit) | – | 16 | 16 | 16 |
| SRAM (KB) | – | 520 | 50 | 520 |
| Analog Pins | 6 | 4 | 1 | 5 |
| Digital Pins | 14 | 4 | 11 | 10 |
| UART / I2C / SPI | 1 / 1 / 1 | 1 / 1 / 1 | 1 / 1 / 1 | 1 / 1 / 1 |
| Wi-Fi Protocol | 802.11b/g | 802.11b/g/n | 802.11b/g/n | 802.11b/g/n |
| Bluetooth | ✗ | Yes (v4.2) | ✗ | Yes (BLE + APP) |
| CPU Frequency (MHz) | 16 | 240 | 160 | 240 |
| Power Supply | USB / DC2.1 | USB | USB or 3.7V LiPo | USB or 3.7V LiPo |
| USB Voltage (V) | 5V | 3.5 – 6.5V | 3.3 – 5.0V | 3.3 – 5.0V |
| Dimension (mm) | 75 × 54 | 35 × 34 | 58 × 29 | 58 × 29 |
| Weight (g) | 30 | 12 | 24 | 24 |
Project Example
Installing the ESP32 Board in Arduino IDE – DFRobot
Includes a step-by-step video tutorial on how to install and configure the board using Arduino IDE.
Shipping List
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1× Beetle ESP32 Microcontroller