Attributes

Brand	-
Category	Electronic Components / Maker DIY / Development Boards & Control Boards
Origin	-
Microcontroller	ESP32-C3
Flash Memory	4MB
Wireless Connectivity	WiFi 2.4GHz & Bluetooth LE 5.0
Display Type	0.42 inch OLED
Display Resolution	72 x 40 pixels
Interface	USB Type-C
Operating Voltage	3.3V Logic
Input Voltage	5V via USB
Antenna Type	On-board Ceramic
Programmable GPIO	22 Pins

5 reviews

Anonymous

Feb 25, 2026

Rating: 5/5

Perfect for wearables

Low power consumption makes this ideal for battery-powered wearable prototypes. The ceramic antenna saves space.

Anonymous

Feb 25, 2026

Rating: 5/5

Great little board for IoT

Works perfectly for my sensor node projects. The OLED screen is small but crisp enough for status messages. WiFi connection is stable.

Anonymous

Feb 24, 2026

Rating: 4/5

Good value, tiny screen

The board itself is excellent and easy to program. Just be aware the display is very small, so don't expect to show graphs.

Anonymous

Feb 10, 2026

Rating: 3/5

Decent hardware, unclear pinout

Hardware works well but I had to dig around for a clear pinout diagram. Once figured out, it performs as expected.

Anonymous

Jan 20, 2026

Rating: 5/5

Easy Arduino support

Uploaded code instantly using the Arduino IDE. The USB-C port is a nice touch for modern setups. Highly recommend for beginners.

5 FAQ

Q: Does this board support MicroPython?

A: Yes, the ESP32-C3 is fully compatible with MicroPython firmware.

Q: Can I power it with a LiPo battery?

A: Yes, you can connect a LiPo battery via the 5V and GND pins, but ensure voltage regulation is handled externally if needed.

Q: What is the resolution of the OLED display?

A: The display resolution is 72 x 40 pixels.

Q: Is the antenna removable?

A: No, the antenna is an on-board ceramic type and cannot be removed or replaced.

Q: Does it come with headers soldered?

A: No, the board is sold without headers to allow for custom mounting options.

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