Description
Reviews
| 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 |
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.
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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