George L.
New Member
hello,
I am trying to make a simple infrared emitter and reciver.
I am using an infrared LED, and an infared receiver (phototransistor) from radioshack.
The goal is for the receiver to turn on a transistor when the circuit senses infrared light from the LED. (Similar to a TV remote control).
The Problem is that the reciver only picks up the "light from the LED" at VERY close distances (10 inches).
I attached a circuit that I thought would make the receiver more sensitive, but instead it seems that the circuit is always ON, even when the phototransistor is in darkness.
More information is on the attachment below
Please help
Thanks,
George
I am trying to make a simple infrared emitter and reciver.
I am using an infrared LED, and an infared receiver (phototransistor) from radioshack.
The goal is for the receiver to turn on a transistor when the circuit senses infrared light from the LED. (Similar to a TV remote control).
The Problem is that the reciver only picks up the "light from the LED" at VERY close distances (10 inches).
I attached a circuit that I thought would make the receiver more sensitive, but instead it seems that the circuit is always ON, even when the phototransistor is in darkness.
More information is on the attachment below
Please help
Thanks,
George