Just follow the schematic diagram to complete the construction, and use any standard 9VDC Arduino power source to energize the system. Here, for demonstration, three different color LEDs (Red, Green ...

And, that signal is further used to control the brightness of the Power LED. As per the circuit diagram, we have made a voltage divider circuit using LDR and 100k resistor. The voltage divider output ...

The Node.js is a widely used JavaScript-based framework built on Google Chrome’s JavaScript V8 Engine and applied in developing I/O intensive web applications such as single-page applications, video ...

This project ... and controls the brightness of an LED on the receiver side. Components Used 2 x Arduino (Uno, Nano, etc.) 2 x nRF24L01 RF modules 1 x Potentiometer 1 x LED 1 x Resistor (220 ohms) ...

To control the ... In this project we have studied the optimization of traffic light controller in a City using IR sensors and Arduino . Figure-4. shows the complete circuit diagram of Arduino board.

This project turns on and turns off a laser LED after every second. It can also monitor its own supply voltage level. The circuit can be extended for use as an audio-visual alarm system ... diagram ...