This file is for an arduino light sensor that uses an arduino photoresistor to measure light values and based on that certain actions are made. Some actions incleda a buzzer (if there is too much ...

The LED comes into play by shining known wavelengths of light on the surface ... This time around it’s an Arduino doing the measuring instead of a PIC. So why isn’t that sensor shown in ...

Pin 4 How it Works The ultrasonic sensor measures the distance to the closest object. Based on the distance, one of the three LEDs (Green, Yellow, Red) lights up. The piezo speaker emits a specific ...

He suspected EMF interference so as a quick first step he decided to throw together an EMF detector using an Arduino. It uses a bank of LEDs as an ... from the emergency lights as the most likely ...

Automating household or office systems can be achieved using an Arduino Nano, a passive infrared (PIR) motion sensor, and a relay. The primary aim is to create a control system that activates or ...

As soon as the ship is passing the sensor is sent data to arduino. And then arduino microcontroller control the traffic light on the land by changing green led to red led. In this condition the servo ...