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Recent content by JimS

  1. J

    negative V into A/D on 16F877?

    16f877a adc negative vref Hi, I'm trying to read in a pH sensor that outputs anywhere from +1.6v to -1.6v by using a PIC16F877's A/D converter. Unfortunately, I can't figure out how to deal with the negative voltage range. Can I just apply a -1.6v to RA2/AN2/VREF- and have the ADC give me my...

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