The microcontroller-based concept was chosen because I wanted to scale the sensor system later to suit other applications. Here is the diagram of my Arduino infrared close proximity sensor. As you can ...

Arduino & Grove-UV sensor. Getting back, the module outputs a calibrated analog voltage which varies with the UV light intensity so basically all you need to do is connect this to an ADC input and ...

Connections are pretty simple and only a few wires. Connect the VCC and GND of the sensor to the 5V and GND pins of the Arduino. Then connect the output to the Arduino’s D2 pin. Here's how the ...