pizviz 0 Posted June 30, 2014 Share Posted June 30, 2014 I wrote program of ADC in tiva c launchpad..I am using PB5 pin(AIN11) for analog input..But How to connect Sensor (voltage input-3.3 voltage input )to launchpad...My sensor has 2 wire Vin,Gnd.....Should i have to connect Vin to PB5 and Gnd of sensor to GND pin of Launchpad.. Quote Link to post Share on other sites
abecedarian 330 Posted June 30, 2014 Share Posted June 30, 2014 It might help if you mentioned what sensor you are using. Quote Link to post Share on other sites
OppaErich 25 Posted June 30, 2014 Share Posted June 30, 2014 Just 2 wires ? LDR, P/NTC ? Quote Link to post Share on other sites
pizviz 0 Posted July 1, 2014 Author Share Posted July 1, 2014 yahhh..its 2 wire ..LDR Quote Link to post Share on other sites
SixSixSevenSeven 23 Posted July 1, 2014 Share Posted July 1, 2014 Of course using 3.3v instead of 5v and PB5 instead of arduino ADC Quote Link to post Share on other sites
pizviz 0 Posted July 2, 2014 Author Share Posted July 2, 2014 thanks .And what about ground pin there are many ground pin on Tiva launchpad board Quote Link to post Share on other sites
SixSixSevenSeven 23 Posted July 2, 2014 Share Posted July 2, 2014 all ground pins are common. If you take an ohm-meter (most multimeters have a resistance measuring function), pick 2 ground pins, put a probe to each you will find they have a very small resistance between each other, or basically they are connected. All the ground pins are connected in parallel with each other. Use whichever one you please. Quote Link to post Share on other sites
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