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Connecting photoresistors to MIDISense ADIO board
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Connecting photoresistors to MIDISense ADIO board

by SoundTree on Mon Jan 26, 2009 5:09 am

When using photoresistors with the MIDISense ADIO board is there a preferred way to hookup to the analog input connections AN1 through AN6?
On the schematic it shows pin 1 to be ground, pin 2 to be +5V and pin 3 to be Vcc.
So I have tried using the photocells going from pin 1 to pin 2 and this works but I find the photocells to have a limited response range visually as shown when doing the calibration. I have added fixed resistors across pin 2 and 3 and I find that I get a larger response range. Is this right?
SoundTree
 
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Re: Connecting photoresistors to MIDISense ADIO board

by adafruit on Wed Feb 04, 2009 7:07 pm

yes, precisely!

adafruit
 
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Re: Connecting photoresistors to MIDISense ADIO board

by mikele666 on Sun Mar 29, 2009 3:18 pm

but on the site of ladyada it says
"Use this with the resistive sensor board."
http://www.ladyada.net/make/midisense/environsensors.html
did you connect it to the ADIO sensor board ??
is that working good ?
mikele666
 
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Re: Connecting photoresistors to MIDISense ADIO board

by marco on Tue Mar 31, 2009 2:01 pm

dear soundtree, can you post a photo of your project?
because I tried to do it but it doesnt work.
thank you
marco
 
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