2 Channel Ir Remote Control Circuit Diagram. Transmitter section and receiver section. When have the infrared light press button come to the module aperture cause it work to short an output point to ground.
Figure 2 the circuit diagram of infrared switch controlled by a tv remote. Suppose just tr3 works led will glow tr4 will stop on. When have the infrared light press button come to the module aperture cause it work to short an output point to ground.
One of the weaks of infrared is that the signal can not pass the walls.
When have the infrared light press button come to the module aperture cause it work to short an output point to ground. The proposed infrared or ir remote control circuit can be used to operate an appliance on off through any standard tv remote control handset. So if you want to control your garage door the only way is to use some rf remote control. Suppose just tr3 works led will glow tr4 will stop on.
