Connecting photoresistors to MIDISense ADIO board

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SoundTree
 
Posts: 2
Joined: Mon Jan 26, 2009 4:43 am

Connecting photoresistors to MIDISense ADIO board

Post by SoundTree »

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?

adafruit
 
Posts: 12151
Joined: Thu Apr 06, 2006 4:21 pm

Re: Connecting photoresistors to MIDISense ADIO board

Post by adafruit »

yes, precisely!

mikele666
 
Posts: 4
Joined: Sun Mar 29, 2009 2:42 pm

Re: Connecting photoresistors to MIDISense ADIO board

Post by mikele666 »

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

marco
 
Posts: 1
Joined: Tue Mar 31, 2009 1:49 pm

Re: Connecting photoresistors to MIDISense ADIO board

Post by marco »

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

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