Esp8266 D1: Mini.

: Hosting simple HTML pages to control relays or lights remotely.

is compatible with multiple environments, including the Arduino IDE , MicroPython , and . Steps for Arduino IDE setup: ESP8266 D1 Mini.

: Includes 5V , 3.3V , and GND pins. The 5V pin can power the board or external components up to 500mA. Special Pins : D0 is used to wake the board from deep sleep. Programming and Setup : Hosting simple HTML pages to control relays

The D1 Mini provides high performance for its size, significantly outperforming standard microcontrollers like the Arduino Uno in computational tasks. Specification ESP-8266EX Operating Voltage 3.3V (5V input supported via regulator) Clock Speed 80 MHz / 160 MHz Flash Memory Digital I/O Pins 11 (all support PWM, I2C, and interrupts, except D0) Analog Input 1 (Max 3.2V input) Dimensions 34.2mm x 25.6mm; ~3g Pinout and Connectivity Despite its size, the exposes essential communication interfaces: I2C : Primarily uses D1 (SCL) and D2 (SDA) . Serial : TX and RX pins for UART communication. The 5V pin can power the board or