A
Anonymous
Apr 13, 2026
Rating: 5/5
Plug and play
Recognized immediately on Linux. No driver issues encountered.
Description
Trendy premium product, quality assured
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Microcontroller | ESP32-C3 |
| Flash Memory | 4 MB |
| SRAM | 400 KB |
| Wireless Connectivity | Wi-Fi 2.4 GHz & Bluetooth 5 (LE) |
| Display Type | OLED |
| Display Size | 0.42 inch |
| Resolution | 72 x 40 Pixels |
| Antenna Type | Ceramic On-board |
| Input Voltage | 5V (via USB) |
| Logic Level | 3.3V |
5 reviews
A
Anonymous
Mar 18, 2026
Rating: 5/5
Excellent for IoT
Works flawlessly with Home Assistant. The ceramic antenna provides stable connection.
A
Anonymous
Mar 11, 2026
Rating: 5/5
Great C3 performance
Bluetooth pairing is very stable. Low power consumption confirmed.
A
Anonymous
Mar 06, 2026
Rating: 4/5
Nice form factor
Wish it had more GPIO pins broken out for complex projects.
A
Anonymous
Feb 10, 2026
Rating: 4/5
Good but small screen
Screen is hard to read without glasses but functionality is perfect.
5 FAQ
Q: What OLED driver is used?
A: It uses a standard SSD1306 compatible driver.
Q: Is there a battery connector?
A: No, you must solder to the BAT pins for LiPo usage.
Q: Does it come with headers?
A: Yes, pre-soldered pin headers are included in the package.
Q: Can I replace the antenna?
A: No, the ceramic antenna is integrated and non-replaceable.
Q: Does it support MicroPython?
A: Yes, MicroPython and CircuitPython are fully supported.
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