A
Anonymous
Apr 01, 2026
Rating: 3/5
Pinout tricky
Needs better documentation. Some pins are strapping pins which confused me initially.
Description
Trendy premium product with guaranteed quality
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Microcontroller | ESP32-C3FH4 |
| Flash Memory | 4 MB |
| Wi-Fi Standard | 802.11 b/g/n 2.4 GHz |
| Bluetooth Version | Bluetooth 5.0 (LE) |
| GPIO Pins | 22 Programmable |
| Input Voltage | 5V via USB-C |
| Operating Voltage | 3.3V |
| USB Interface | USB to Serial UART |
| Board Size | 20.5 x 17.5 mm |
| Weight | 3.5 grams |
5 reviews
A
Anonymous
Apr 01, 2026
Rating: 5/5
Compact and Powerful
Great for wearables. The size is perfect for my smart ring project and connectivity is stable.
A
Anonymous
Mar 15, 2026
Rating: 4/5
Good but runs warm
Works well but gets warm under heavy Wi-Fi load. Otherwise excellent value for money.
A
Anonymous
Mar 14, 2026
Rating: 5/5
Best Mini Board
Love the USB-C port. Much more durable than the micro USB on older boards.
A
Anonymous
Feb 12, 2026
Rating: 5/5
Arduino Compatible
Uploaded sketches easily using the Arduino IDE. No driver issues on Windows 10.
5 FAQ
Q: What is the maximum current output?
A: The 3.3V pin can supply up to 500mA recommended, but total consumption should be monitored.
Q: Does this support PlatformIO?
A: Yes, PlatformIO supports the ESP32-C3 platform fully within the ESP32 framework.
Q: What is the antenna gain?
A: The onboard PCB antenna has an approximate gain of 2 dBi.
Q: Can I connect a LiPo battery directly?
A: No, there is no charging circuit. You must use a regulated 5V supply or external charger.
Q: Is JTAG debugging supported?
A: Yes, JTAG is supported via specific GPIO pins for advanced debugging.
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