6/13/2023 0 Comments Pic 12f675 ldr47 ohm special resistor with fuse (shown in figure) and current is calculated. To minimize the path resistance we will use. Current through a circuit can be measured by introducing a 1 ohm resistor and measuring the voltage across it. So we will map 0 to 30V to 0 to 5V by using a voltage divider. This circuit is designed to measure 0 to 30V. The analog input to PIC is limited to VSS and VDD voltages (0 – 5V) of PIC. LCD Interfacing with PIC MicrocontrollerĪDC module of PIC Microcontroller converts the Signals on its analog pin to 10 bit binary data and it has software selectable high and low voltage reference input to some combination of VDD, VSS, RA2 and RA3.If you don’t know the basis of PIC ADC and LCD Interfacing please read the following articles. I suggest to use PIC with low pin numbers and multiplexed 7 segment display if you wish to use this as your measuring instrument. PIC16F877A is enough if you do this project only for testing purposes. I am using PIC16F877A and the result is displayed on an LCD Display. Voltmeter and Ammeter can be easily made using PIC Microcontroller having ADC (Analog to Digital Converter).
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