Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP8266EX |
| USB-to-UART Chip | CH340G |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via Micro USB |
| Flash Memory | 4MB (Default) |
| Wi-Fi Standard | 802.11 b/g/n |
| GPIO Pins | 11 Available |
| Interface | Micro USB Type-B |
| Dimensions | 56mm x 21mm x 12mm |
| Compatibility | Arduino IDE, NodeMCU, Lua |
Anonymous
Mar 27, 2026
Rating: 4/5
Good quality, needs external antenna for long range
Works great for indoor use. If you need to penetrate thick walls, consider an external antenna model, but for standard room-to-room communication, this is perfect.
Anonymous
Mar 25, 2026
Rating: 5/5
Reliable for home automation
I bought five of these for my smart home project. All of them connected to my MQTT broker without issues. Stable connection and fast boot times.
Anonymous
Mar 24, 2026
Rating: 5/5
Best budget ESP8266 board
Compared to other brands, Youxin offers consistent quality. The soldering points are clean, and the USB port feels sturdy. No issues after weeks of continuous operation.
Anonymous
Mar 21, 2026
Rating: 4/5
Solid board, minor pin labeling issue
The performance is excellent and Wi-Fi range is good. However, the silk screen labeling for GPIO2 is slightly faded. Functionality is not affected, just a cosmetic note.
Anonymous
Mar 16, 2026
Rating: 5/5
Great for university projects
Used this for my final year embedded systems project. Documentation online is plentiful, and the board handles complex WiFi tasks smoothly. Highly recommended for students.
Anonymous
Mar 13, 2026
Rating: 5/5
Perfect for IoT starters
This board works flawlessly with the Arduino IDE. The CH340 driver installed easily on Windows 10, and I was uploading sketches within minutes. Great value for the price.
Q: Is the CH340 driver compatible with macOS?
A: Yes, drivers are available for macOS. You may need to install the specific CH340 VCP driver from the manufacturer's website if it is not auto-detected.
Q: Does this support Over-The-Air (OTA) updates?
A: Absolutely. The ESP8266 chip fully supports OTA updates, allowing you to upload new code wirelessly once the initial sketch is uploaded via USB.
Q: Does this board come with pre-installed firmware?
A: Yes, it typically comes with a basic NodeMCU firmware, but we recommend flashing the latest version for your specific project needs.
Q: What is the maximum current draw for the 3.3V pin?
A: The onboard regulator can safely provide up to 600mA, but for stability, we suggest keeping the load under 400mA when using Wi-Fi heavily.
Q: Can I power this board directly via the VIN pin?
A: Yes, you can supply 5V to the VIN pin, but using the Micro USB port is recommended for stable programming and power delivery.
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