Infrared Remote control

I found in a local market an Infrared Remotecontrol built around 89c2051 controller which controls 5 Lights(loads) and One Fan with speed control.Can U guess Or explain Hows this Happening.If possible...
Infrared Remote control

I found in a local market an Infrared Remotecontrol built around 89c2051 controller which controls 5 Lights(loads) and One Fan with speed control.Can U guess Or explain Hows this Happening.If possible...
problem in infrared sensor

Hi all, i am making a project where i install infrared sensors on the doorway and when a person enters, it senses and the light switches on, and switches off when the person goes outside. it is working...
problem in infrared sensor

Hi all, i am making a project where i install infrared sensors on the doorway and when a person enters, it senses and the light switches on, and switches off when the person goes outside. it is working...
How to build infrared detector...

Can you help me? I want to use infrared as an electrical circuit can feel the presence of man in space 40 to 200 m. Water is not impertont but on port rxd.