Phidget, Infrared or photoled

Any other Phidget projects you've done not related to the above subjects
armsterisme

Phidget, Infrared or photoled

Postby armsterisme » Fri Feb 11, 2011 3:09 am

hey,
i m french so just be cool with me plz my english isn't very good.

We have a phidget 16/16 to control a slot car track.
We use Pc lap counter software to control phidget.

the power of esch lane is controlled by phidget + electrical relay, All works perfectly.

We want detect the car on the finish lane for each lap.
we want to use photoresistance or IR. but we don't know how to connect Photoresistance to phidget.

anyone could explain us ?

Thank you very much

Cerwell
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Posts: 58
Joined: Wed Nov 26, 2008 3:52 pm
Location: Norway (East)

Re: Phidget, Infrared or photoled

Postby Cerwell » Fri Feb 11, 2011 12:03 pm

Products like the 1103 connects to analogue inputs.

For that you need a board like the 1018.

Maybe the 1103 could work if mounted above the detectionpoint facing down?

erik
King of the Lab
Posts: 476
Joined: Fri Mar 06, 2009 12:42 pm
Location: Calgary, Canada
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Re: Phidget, Infrared or photoled

Postby erik » Fri Feb 11, 2011 12:13 pm

If you wish to use photoresistors, you can attach them to the 1121 Voltage Divider, but again, you would need to a 1018 InterfaceKit to use since they output an analogue signal.

In either case, it would be important to note how fast the slot cars are moving and how big the cars are, because the sensor may or may not be able to change fast enough to detect the car.

Cerwell
Phidgeteer!
Posts: 58
Joined: Wed Nov 26, 2008 3:52 pm
Location: Norway (East)

Re: Phidget, Infrared or photoled

Postby Cerwell » Fri Feb 11, 2011 12:45 pm

OP: Read this.

If this applies to you, a switch of this type could be connected to the 1012 you already got.

armsterisme

Re: Phidget, Infrared or photoled

Postby armsterisme » Sat Feb 12, 2011 3:08 am

really thanks all.
i try to understand all you've wrinting here. and testing that.
at the beginning, we thought that it was enough to connect the power supply and the detector system but is much more complicated. Thanks again for your reply
Today, we use a relay controlling the power Phidget for each slot. and detection is done by dead strip in a slow part of the track. and it works pretty good.


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