Laser-Transmitting-System

Well, at the sender, you can type a short text, shown at a 2x20 LCD. When pushing the "send"-button, this text will be coded with the Manchester-Method and sent with a laser-diode of a laser-pointer. A problem: You have to aim quiet good... The receiver operates with a photo-diode, working together with an OpAmp which makes an useful voltage for the AVR.

The received Text will be shown at an Nokia-3330 Display.

Transfers 135 Bytes/second. (Mega8: 6 Mhz).

In the attachment, you will find pictures, schematics, a german description and the Bascom-Code.