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Home / Development Boards & Control Boards / ESP32-C3 OLED Development Board with Ceramic Antenna, Wi-Fi, Bluetooth, 0.42-inch Display

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Processor Architecture RISC-V 32-bit
Flash Storage 4 MB
SRAM Capacity 400 KB
Wi-Fi Protocol 802.11 b/g/n
Bluetooth Version Bluetooth 5 (LE)
Display Technology OLED
Screen Size 0.42 Inch
Input Voltage 5V via USB
Connection Port USB Type-C
Antenna Design On-board Ceramic

5 reviews

A

Anonymous

Apr 05, 2026

Rating: 5/5

Perfect for IoT Prototyping

This board works straight out of the box. The OLED display is crisp enough for status messages and the Wi-Fi connection is stable. Highly recommend for beginners.

A

Anonymous

Mar 23, 2026

Rating: 3/5

Decent but display is dim

The functionality is fine, but the OLED brightness is hard to adjust and seems dim in bright rooms. Good for indoor low-light projects only.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Excellent Support

Had issues with drivers initially but the support team helped me resolve it quickly. The board itself is very reliable for home automation tasks.

A

Anonymous

Feb 03, 2026

Rating: 5/5

Compact Powerhouse

Love the built-in screen. It saves so much space compared to wiring an external display. Bluetooth pairing was quick and easy.

A

Anonymous

Jan 24, 2026

Rating: 4/5

Good value but pinout tricky

Great board for the price. The only downside is that the pinout labels are a bit small. Once you map them out, it works perfectly with Arduino IDE.

5 FAQ

Q: What is the maximum input voltage?

A: You can power it via 5V through the USB Type-C port. The GPIO pins operate at 3.3V logic level.

Q: Can I use MicroPython on this device?

A: Yes, MicroPython is supported. You can flash the firmware using esptool or the web installer.

Q: Is this board compatible with the Arduino IDE?

A: Yes, this ESP32-C3 board is fully compatible with the Arduino IDE. You will need to install the ESP32 board manager package.

Q: What is the approximate Wi-Fi range?

A: In open space, you can expect around 50 meters. Indoor range varies depending on walls and interference.

Q: Does it support deep sleep mode?

A: Yes, the ESP32-C3 supports multiple power saving modes including deep sleep to extend battery life.

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