The ESP8266 D1 Mini V2 WiFi Microcontroller Board is a compact wireless development board built on the ESP-8266EX chip. It is widely used for WiFi-enabled embedded projects due to its small size, solid peripheral support, and flexibility across multiple development environments.
The board follows the esp8266 mini form factor standard that has become popular among makers and developers for its breadboard compatibility and modular design approach. It carries 11 usable digital GPIO pins and one analog input channel, supporting hardware SPI, I2C, and UART communication. This makes it suitable for interfacing with temperature sensors, OLED displays, relay modules, and similar electronics components commonly used in project builds.
The nodemcu esp8266 price range of similar boards has made this category of WiFi microcontrollers very accessible, starting out with wireless embedded development. This board carries 4MB flash, which comfortably handles web server firmware, MQTT client applications, and SPIFFS file storage.
Available through StemVolt, this board is regularly used by IoT developers and electronics students for need a reliable and compact WiFi capable platform for IoT modules for projects ranging from smart home nodes to remote sensor deployments.
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Features:
- ESP-8266 integrates a 32-bit processor and 2.4 GHz WiFi radio on a single chip keeping the overall board size minimal
- Micro USB connector handles programming and 5V power input without requiring any external programmer
- Onboard voltage regulator steps 5V USB input down to 3.3V cleanly for the ESP chip and all GPIO outputs
- Supports multiple programming environments giving developers the choice between C++ through Arduino IDE or Python
- Reset button onboard allows quick board restart during development without disconnecting the USB cable
Technical Specifications:
| Specification | Details |
|---|---|
| Board | ESP8266 D1 Mini V2 WiFi Microcontroller Board |
| Digital I/O Pins | Analog I/O Pins | 11 pin | 1 pin (10-bit ADC) |
| Wireless Connectivity | 2.4 GHz WiFi 802.11 b/g/n |
| Flash Memory | 4 MB |
| Operating Voltage | 3.3V |
| Compatible With | Arduino IDE, NodeMCU, MicroPython |
Applications:
- Remote monitoring projects — Check temperature, humidity, and environmental data and push readings to cloud servers over WiFi
- esp32 wroom upgrade path — use this board to learn WiFi embedded development
- Microcontroller based local web server — host a lightweight control interface directly on the board
- arduino uno price sensitive WiFi projects — replace standard development boards with this compact WiFi capable alternative
Package Includes:
-
1 x ESP8266 D1 Mini V2 WiFi Microcontroller Board
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