Hi,
I need a sensor that measures IR intensity. I am working on a target seeking robot. A beacon that emits IR will be the target, and a sensor mounted on robot should measure the distance (might not accurate) between robot and target/beacon using the intensity of the IR.
If there's any receiver alone or emitter/receiver pair, or a module as such (expensive or not), kindly let me know.
Ideally range should be large, but I can cope with smaller range.
Any help would be highly appreciated.
Here is a ready made IR sensor...
I wish I could use wii remote on my robot. but not an option for me.
Any IR photo transistor should do.
Lots to choose from:-
To get any decent range you will have to amplify the output and screen the detector from ambient light by using a tube.
You can get ones with built in amplifiers designed for remotes but those have an AGC (Automatic gain control) that masks any distance reading.
The other thing if you want ready built is to us an IR distance sensor and not to wire up the transmitter LED.