How to make a potentiometer act as a position sensor?

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sumei

Joined: 09 Oct 2004
Posts: 7

30 Nov 2004 8:55 how to build a position sensor?

Do anyone have any idea how is the schematic diagram looks like for a potentiometer to act as a position sensor? I need to connect this potentiometer to a TMS320F2812 DSP board....anyone have any idea to this problem???

nicleo

Joined: 06 Sep 2004
Posts: 717
Helped: 60

30 Nov 2004 9:05 make potentiometer

Potentiometer -> Op Amp -> ADC port of TMS320F2812 DSP board

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IanP

Joined: 05 Oct 2004
Posts: 6490
Helped: 1542
Location: West Coast

30 Nov 2004 9:19 how to make position potentiometer

If the potentiometer value is less than ,say, 5 to 10k you can connect potentiometer between 0 and 5V (or whatever supply is on the board) and it directly to A/D input. Also, I would connect 5,1V ZDiode and 100nF capacitor (just in case...)