Attributes

Brand	-
Category	Electronic Components / Maker DIY / Development Boards & Control Boards
Origin	-
Processor	Dual-Core Xtensa LX7 @ 240MHz
Flash Memory	4MB Quad SPI
PSRAM	2MB Octal SPI
Wireless Connectivity	Wi-Fi 802.11b/g/n & Bluetooth 5.0 LE
GPIO Count	22 Programmable Pins
Interface	USB Type-C (UART & JTAG)
Operating Voltage	3.3V Logic Level
Input Voltage	5V via USB or VIN Pin
Dimensions	25.4 x 17.8 x 3.2 mm
Software Support	Arduino IDE, ESP-IDF, MicroPython

5 reviews

Anonymous

Apr 14, 2026

Rating: 5/5

Bluetooth LE works great

Using it for a wearable project. Battery efficiency is impressive and the Bluetooth range is sufficient for my needs.

Anonymous

Apr 14, 2026

Rating: 5/5

Great MicroPython Support

Flashed CircuitPython instantly. No drivers needed on Mac. The USB-C port makes it very convenient to use.

Anonymous

Apr 13, 2026

Rating: 5/5

Upgrade from ESP8266

Much faster processing. USB-C is a welcome change. Highly recommend for anyone looking to upgrade their old projects.

Anonymous

Apr 12, 2026

Rating: 5/5

Perfect for IoT Prototyping

Compact size fits everywhere. Wi-Fi connection is stable and setup was straightforward using the Arduino IDE.

Anonymous

Apr 01, 2026

Rating: 4/5

Good value but small pins

Board works well but soldering headers requires care due to size. Performance is excellent for the price point.

5 FAQ

Q: What is the maximum current draw?

A: Typically 500mA peak depending on Wi-Fi usage. We recommend a stable 5V power supply.

Q: Does this come with headers soldered?

A: No, this is the bare module version. You will need to solder headers separately if required.

Q: Does it support external antenna?

A: No, this mini version uses the onboard PCB antenna only. There is no connector for an external antenna.

Q: Can I power it with a 3.7V LiPo battery?

A: Yes, connect to the 5V pin or use a dedicated battery pin if available on your carrier board.

Q: Is it compatible with Arduino IDE?

A: Yes, fully supported via the ESP32 board manager. You can find installation instructions in our wiki.

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