Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP8266EX |
| Flash Memory | 4MB (ESP-12F) |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via Micro USB or VIN pin |
| Digital I/O Pins | 11 (D0-D8, RX, TX) |
| Analog Input Pins | 1 (A0, 0-1V range) |
| Wi-Fi Standard | IEEE 802.11 b/g/n |
| Programming Interface | Micro USB (CH340G chip) |
| Dimensions | 25.6mm x 17mm |
| Supported IDEs | Arduino IDE, NodeMCU Firmware, ESP-IDF |
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect for IoT prototypes
This D1 Mini is incredibly small yet powerful. I used it to build a smart home temperature sensor, and the Wi-Fi connection was stable right out of the box. The pinout is clearly labeled, making wiring a breeze.
Anonymous
Mar 23, 2026
Rating: 5/5
Best bang for your buck
Compared to other ESP8266 boards, the form factor of the D1 Mini is unbeatable. It fits easily into small enclosures. The Lua support is a nice bonus if you prefer that over C++.
Anonymous
Mar 22, 2026
Rating: 5/5
Compact and reliable
I've bought ten of these for a classroom project. They are robust, handle 5V input well thanks to the regulator, and the CH340 driver works fine on both Windows and Mac. Highly recommended for education.
Anonymous
Mar 21, 2026
Rating: 5/5
My go-to development board
I use these for all my custom home automation nodes. They connect quickly to MQTT brokers and have enough GPIO pins for most sensors. The community support for this specific board is massive.
Anonymous
Mar 20, 2026
Rating: 4/5
Great value, minor learning curve
As someone new to embedded systems, this board was affordable enough to experiment with. Setting up the Arduino IDE took a few tries, but once configured, uploading sketches was fast. Just wish the analog pin range was wider.
Anonymous
Mar 15, 2026
Rating: 4/5
Solid performance
Works exactly as described. The only reason for 4 stars instead of 5 is that the included headers were not pre-soldered, so I had to do that myself. Otherwise, no complaints about functionality.
Q: Does this board come with headers pre-soldered?
A: No, this version typically comes without pre-soldered headers to allow for flexible mounting options. You will need to solder them yourself or use female header sockets.
Q: Can I power this directly from a 5V USB charger?
A: Yes, the board features an onboard voltage regulator that converts 5V from the Micro USB port or VIN pin down to the 3.3V required by the ESP8266 module.
Q: Can this run MicroPython?
A: Yes, the ESP8266 chip on the D1 Mini is fully compatible with MicroPython. You can flash the MicroPython firmware using tools like esptool.py.
Q: Which driver do I need for Windows 10?
A: This board uses the CH340G USB-to-UART bridge. You will need to install the CH340 drivers, which are widely available online, to recognize the board in your IDE.
Q: Is the A0 pin capable of reading 0-3.3V signals?
A: No, the A0 analog input pin on the ESP-12F module is limited to a 0-1V range. Applying voltages higher than 1V may damage the pin. Use a voltage divider for higher voltages.
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