IR reciever

HELLO!

following on from an idea i saw on the main page, i would like to rear IR signals from an "all in one" remote i have knocking around.

When i was at school (some time ago) i made this circuit,

http://www.kemo-electronic.de/en/Light-Sound/Infrared/Kits/B062-Infrared-light-barrier-%3E-18-m.php

 

and i still have it. the first thing to throw me is, why all that circuitry for a fairly simple job?

also, the ir reciever has only two leads, not the three the internet suggests it should have. (i suspect this is related to the above)

I was hoping to cut the IR reciever diode off, and wire it up in the same way i would with a photoresistor and be able to read the signals with an arduino, but i suspect, i wont be able to do that?

can anyone shed any light?

 

Many thanks

 

 

a phototransistor

well, and sure you can probably use it like described here:


https://sites.google.com/site/therobotronics/arduino/connect-a-phototransistor-to-arduino

seems to me like this is what you’re after, right?

 

I suppose the three pins on

I suppose the three pins on the modern ones include the pull resistor in the unit perhaps.

time to crack out the bread board.

The 3 pin receivers

are much more contained. They actually are set up to receive IR at 38kHz. The left hand board above probably does some of what the 3 pin receivers do. You would be better off spending the $3 or so to acquire one of the 3 pin IR receivers. The extra harware will save you from having to write extra software. :slight_smile: