Wireless Telegraph

The Telegraph is a communication system which allows transmission of information through electrical pulses and using a preset code signs.

One group of San Jose School has done a modification of the traditional telegraph, and they have set up a wireless telegraph using as main elements, one LED (Light Emitter Diode), one LDR (Light Dependent Resistance) and an electronic system conformed by one Arduino plate and one ProtoBoard plate.

Resolution of the activity