This WEMOS D1 Mini V3 ESP8266 WiFi enabled 32 bit micro controller development boards comes with MicroPython interpreter installed, 4MB Flash Memory, and 80MHz (max. 160MHz) clock speed. ESP8266 based development boards are the perfect core for your Internet Of Things project, or tiny web server.
This D1 Mini compatible, very popular 2.4GHz WiFi module (802.11b/g/n) is almost 10 times faster than an Arduino Uno, and comes with plenty of memory. The header can be used to attach other WeMos D1 form factor compatible shields.
The D1 Mini is a WiFi capable ESP8266 based development board, and it is compatible with MicroPython. D1 Mini features 11 GPIO pins (input/output/PWM/IC), thereof 1 UART (RX/TX) for serial communication, and 1 additional analog input. Please pay attention when you connect other active periphery to the I/O pins, because this is a 3.3V logic level device and higher levels on any pin will destroy it. The max. input voltage for the analog pin is 3.2V.
Attention: This is a 3.3V logic level device!
If you are not familiar with MicroPython, please search the web for plenty of resources! MicroPython is much simpler than for example C (or Arduino code), and does not require a programming environment (IDE).