Infrared detection on an analog pin

Other Hardware General Electronics
1

Hi,

I'm using a Diavolino and lolShield. The lolShield uses all the digital pins, but the analog pins are still free.

I'd like to control my lolShield with an old TV remote.

  1. Can I do this with an Infrared receiver attached to one of the analog pins?

  2. Maplin sell the following http://www.maplin.co.uk/infrared-transmitter-and-receiver-10379
    Is this suitable for this project? And if so, I can't tell from the info on the page, if I need a resistor or what size of resistor I need if I connect it to the power supply pin.

Thank you for your time reading this and I greatly appreciate any suggestions.

M

2

From the questions page of the link:

Q) Can you use this product as a digital input on a PIC chip?
A) Yes the product does support that.

You can use an arduino analog pin just the same as an analog, it's just digital pins 14-20. It looks like you hook one side up to 5V and the other up to your pin.

HOWEVER: This is not what you want to read signals from a TV remote. The signals from that are actually a square wave at about 38khz, which is probably too fast to deal with. Here's a tutorial on how to read IR remote controls: Sensor tutorials - IR remote receiver/decoder tutorial

Sparkfun electronics also sells one: IR Receiver Diode - TSOP38238 - SEN-10266 - SparkFun Electronics

3

Just to clarify when it was said:-

You can use an arduino analog pin just the same as an analog, i

What is meant is:-
You can use an arduino analog pin just the same as a digital pin.

4

Thanks for the replies and the link. That's really helpful. I'll experiment with the analog pin and see what happens.

M