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Home / Development Boards & Control Boards / ESP32 Wireless Module WiFi + Bluetooth 2-in-1 Dual-Core Development Board Core Module ESP32 Serial to WiFi

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
CPU Architecture Dual-Core Tensilica LX6
Clock Speed 240 MHz
Flash Memory 4 MB
SRAM 520 KB
Wi-Fi Standard 802.11 b/g/n
Bluetooth Version v4.2 BR/EDR and BLE
GPIO Pins 34 Programmable Pins
Logic Level 3.3V
Input Voltage 5V via Micro USB
Dimensions 55mm x 28mm x 13mm

5 reviews

A

Anonymous

Mar 12, 2026

Rating: 5/5

Better than ESP8266

The dual-core processing makes a huge difference for multitasking. Deep sleep mode works well for battery projects. Highly recommended.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Stable Connection

Used this for a home automation sensor. It has been running for weeks without disconnecting. Very satisfied with the stability.

A

Anonymous

Feb 27, 2026

Rating: 5/5

Excellent for IoT Prototyping

This board works perfectly with the Arduino IDE. Wi-Fi range is impressive and Bluetooth pairing was seamless. Great value for the price.

A

Anonymous

Feb 23, 2026

Rating: 4/5

Good board, driver issues initially

Hardware is solid. Had some trouble installing the USB drivers on Windows 10 at first, but once configured, it runs stable.

A

Anonymous

Feb 20, 2026

Rating: 3/5

Pinout labeling is small

Functionality is fine, but the silk screen printing for the pin numbers is very small and hard to read without a magnifier.

5 FAQ

Q: What is the maximum current per GPIO pin?

A: The maximum current per GPIO pin is 12mA. Please do not exceed this to avoid damage.

Q: Does it come with a USB cable?

A: Yes, a Micro USB cable is included in the package for power and programming.

Q: Can I power this with 3.3V directly?

A: Yes, you can power via the 3.3V pin, but ensure stable regulation. USB 5V is recommended for beginners.

Q: Is Bluetooth Classic supported?

A: Yes, it supports both Bluetooth Classic (BR/EDR) and Bluetooth Low Energy (BLE).

Q: Is this compatible with MicroPython?

A: Yes, this board supports MicroPython firmware flashing.

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