I found a couple of IR receivers, with just a few generic part #s listed on their backside. Googling them didn't pull up any information, and I don't want to throw them. Two Things
1: I need to determine which pin isoutput, gnd and Vs
2: How can I determine the carrier frequency of the IR receiver? I have an idea but will it work?
I have a function generator and some IR diodes. I will energize the diode by using the function generator, and slowly increase the frequency until i get a response from the IR receiver. I can determine this by setting up the IR receiver in a small circuit with an LED, and when the LED turns on, it means that the IR diode is emitting a signal at the carrier frequency of the IR receiver. I can then record the frequency from the function generator.
1: I need to determine which pin isoutput, gnd and Vs
2: How can I determine the carrier frequency of the IR receiver? I have an idea but will it work?
I have a function generator and some IR diodes. I will energize the diode by using the function generator, and slowly increase the frequency until i get a response from the IR receiver. I can determine this by setting up the IR receiver in a small circuit with an LED, and when the LED turns on, it means that the IR diode is emitting a signal at the carrier frequency of the IR receiver. I can then record the frequency from the function generator.