In this article we’ll send data from a classic IR remote controller (I used my Creative Speaker IR remote control) to turn on/off a LED in our Arduino board, using an IK38khz sensor and the IRemote library.
Naturally you could use your IR Remote for everything: to manage motors, servo and other devices or you could also create a cheap network between two Arduino: one board will send data from a IK38khz Sensor (receiver) and the other one will receive them using an infrared Led (sender)

In this article we’ll see how to retrieve data from 4 cool electronic sensors often used in domotica and robotica projects: Infrared Proximity Sensor, Force Resistive Resistor (FSR), Light Photo Detector (LDR), tilt Sharp (inclination).
To see them in action the returned values will be mapped to update a LED luminosity (using PWM - Pulse-Width Modulation). I have provided Arduino sketch files (written in C), breadboard connection pictures and a demo video for each sensor.