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ESP32-WROOM-32 30-Pin USB-C Development Board
Dual-core 240 MHz · 4 MB Flash · Wi-Fi · Bluetooth Classic + BLE · USB-C
£5.29
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Dual-core Xtensa LX6CPU
Up to 240 MHzClock
4 MBFlash
520 KBSRAM
2.4 GHz Wi-FiWireless
Classic + BLEBluetooth
Product overview
A versatile ESP32 development board with mature software support, useful GPIO, dual-core processing and built-in Wi-Fi and Bluetooth. It is an easy starting point for general embedded development and a strong choice for ESPHome and Home Assistant projects.
Ideal for
ESPHome & Home Assistant
Wireless sensor nodes
MQTT & IoT projects
Robotics & control
Data logging
General prototyping
Technical specifications
| Processor | ESP32 / dual-core Xtensa LX6 |
|---|---|
| Processor speed | Up to 240 MHz |
| Flash memory | 4 MB SPI flash |
| SRAM | 520 KB on-chip SRAM |
| Wi-Fi | 2.4 GHz IEEE 802.11 b/g/n |
| Bluetooth | Bluetooth 4.2 BR/EDR + BLE |
| USB | USB-C for power and USB-to-serial programming |
| Logic level | 3.3 V |
| Pins | 30-pin development-board format |
| Interfaces | GPIO, ADC, DAC, PWM, UART, SPI, I²C, I²S, RMT, TWAI/CAN-compatible |
| Frameworks | Arduino IDE, ESP-IDF, PlatformIO, MicroPython, ESPHome |
Good to know
- USB-C cable is not included; use a data-capable cable for programming.
- GPIO uses 3.3 V logic.
- The board is relatively wide on a standard breadboard; plan wiring space accordingly.
Compare ESP32 boards
| Board | CPU | Memory | Bluetooth | Best for |
|---|---|---|---|---|
| ESP32-C3 Super Mini | 160 MHz RISC-V | 4 MB Flash | BLE | Compact IoT / ESPHome |
| ESP32-WROOM-32 | Dual-core 240 MHz LX6 | 4 MB Flash | Classic + BLE | General purpose |
| ESP32-WROOM-32 OLED | Dual-core 240 MHz LX6 | 4 MB Flash + OLED | Classic + BLE | Projects needing a built-in status display |
| ESP32-S3 N16R8 | Dual-core 240 MHz LX7 | 16 MB Flash + 8 MB PSRAM | BLE | Displays, cameras, advanced applications |
Ready to order?
Available from Aetherwatt on eBay with free UK delivery.