With compact design, the board can integrate the real-time clock module DS1307, EEPROM memory AT24C32 and digital temperature sensor DS18B20 (not supplied on the board) which are connected via I2C bus together on a 27mm*28mm*8.4mm board.
The D1 is an Arduino Uno-like wifi board based on ESP-8266EX.
11 digital input/output pins
1 analog input(3.3V max input)
a Micro USB connection
a power jack, 9-24V power input.
Compatible with Arduino
The UV Sensor is used for detecting the intensity of incident ultraviolet(UV) radiation. This form of electromagnetic radiation has shorter wavelengths than visible radiation. This module is based on the sensor UVM-30A, which has a wide spectral range of 200nm-370nm. The module outputs electrical signal which varies with the UV intensity, which gives your...