Sunday, 23 November 2014

microcontroller - How can I measure battery voltage with my MCU?


I am currently using the PIC24FJ128GA010 and I am planning to use Input/Output port to connect my 4.2 V LiPo battery and to check if the voltage value doesn't go below 3.7 V.


I am thinking to connect it to any of my input/output pin but I am wondering two questions:



  1. Is it the correct pin?

  2. Should I do a specific montage with resistor?




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