DFRobot Beetle ESP32
Compact ESP32 dual-core development board with WiFi, Bluetooth 4.2, sewable I/O pads, and wearable-friendly 35x34mm form factor for IoT and e-textile projects.
$9.90
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Specifications
Certifications
Components
Espressif ESP32-PICO-D4 System-in-Package with dual-core Xtensa LX6 at 240MHz, 520KB SRAM, WiFi 802.11 b/g/n, and Bluetooth 4.2 with BLE.
Bus Interfaces
GPIO Map
Overview
The DFRobot Beetle ESP32 is a compact wearable-focused development board powered by the Espressif ESP32 Tensilica LX6 dual-core processor running at 240MHz. With built-in WiFi 802.11 b/g/n and Bluetooth 4.2 (BR/EDR/BLE), it delivers powerful wireless connectivity in a 35x34mm package.
The board features gold-plated honeycomb I/O pads designed for sewing into fabric, making it ideal for e-textile and wearable electronics projects. It exposes 4 digital pins, 4 analog inputs, I2C, and UART interfaces — enough for most compact sensor and actuator projects without adding bulk.
With 520KB SRAM and 16MB flash, the Beetle ESP32 supports Arduino IDE and MicroPython development. The flexible power input accepts 5V USB or 3.5-6.5V on the VIN pin. FCC, CE, TELEC, and KCC certifications make it suitable for products beyond prototyping.
Use Cases
4Wearable
Body-worn computing devices including smartwatches, fitness bands, and health monitors.
E-Textiles
Electronic textiles integrate circuits and microcontrollers into fabric for smart clothing, wearable sensors, and interactive garments.
Compact IoT Node
Ultra-small microcontroller boards for embedding into tight spaces in IoT projects, props, cosplay, and miniature builds.
Battery Powered Sensor Node
Low-power sensor nodes running on battery for wireless data collection and monitoring.
Resources
Where to Buy
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