Long Range Ir Transmitter And Receiver Circuit Diagram. The ir sensors work for short range the maximum distance in which it works properly is approx 30 50cm. The circuit is a simple astable multivibrator using ic ne555.
This reflection is sensed by the receiver. This long range infrared transmitter can emit pulsed ir rays up to 10 meters. The ir sensors work for short range the maximum distance in which it works properly is approx 30 50cm.
Circuit diagram with parts list.
This long range infrared transmitter can emit pulsed ir rays up to 10 meters. Resistors r1 r2 and capacitor c1 fix the output frequency to 1 khz. Further to increase the directivity and so also the power density you may assemble the ir leds inside the reflector of a torch. When the ir transmitter emits radiation it reaches the object and some of the radiation reflects back to the ir receiver.
