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Asked — Edited

Arduino Infrared Module Kit As Table Top Edge Sensor?

in the video below i think the guy is using the arduino infrared module kit (link to ebay item below too)

i wanted to see if anyone here know if we can use this kit as edge detection. so my wall-e doesn't fall of the table.

in the video it shows that if even one sensor (either the transmitter or receiver ) go off the table the bot stops and reverses....

Can i assume the 2 sensors are always communicating the same voltage/value?
and once that value changes (table is no longer there) the scrip command is to back up?

thanks in advance


ebay link to transmitter and receiver sensors

Netherlands
#2  
This is not what you're looking for, those are 38Khz IR receivers for TV remotes etc.

I think this is more what you're looking for, they even output a analog signal based on the IR reflectance!
#3  
thanks for the heads up........how about this link

this is a transmitter and led......so this is essentially both pieces melted into one?

anywho this is what i found is this comperable to the one you pointed out?


linky!
Netherlands
#4  
Yes, that one looks fine, but there you have to adjust sensitivity on the board itself, not via software, looks like it also just outputs a ADC value.
#6  
to be able to adjust sensitivity on software, would the sensor have to be a digital vs analog?

thanks again for your help...

Mr. Netherlands
Netherlands
#7  
For software sensitivity you could also choose digital, but it would be much harder than analog because you'll have to measure time for a capacitor to discharge so i would go with the one i just sent to you, can't be that hard, 3 wires?
#8  
yeah maybe your right, im going to have to solder when i get the mp3 trigger and the wifi cam....

thanks man
#9  
also, can this one be uses as a microphone? for voice commands? found it on the same site you posted...3 wires too...

what do you think?
link
Netherlands
#10  
No, you can't hook up a microphone directly to the EZ-B, you need a wireless microphone that is connected to your PC *blush*
#11  
i was hoping that wasnt the case, well you saved me 50 bucks in sensors....thats man... going tithe mp3 trigger and the sensor you posted...
Netherlands
#12  
Glad to have helped:D
#13  
@hoolagen1,
Generally you don't want a mic in the robot because the robot is too loud. DJ recomends using the computer mic or table top mic. I use the one on my web cam. Works great!