Description: This is a simple application with 10 bit ADC inside. This circuit measures at most 30 V DC, and can be used in desktop power supply or panel meters in various systems.
PIC16F676 internal ADC and a resistor network divider used to measure the input voltage, digital tube to display voltage values, the frequency is about 50HZ
In the schematic, the 47K is seen and the 10K potential is connected to the voltage divider configuration. By default, the PIC microcontroller ADC reference voltage is set to VCC (+ 5V in this case), dividing the maximum range from 30 volts to 5 volts for such a voltage divider.
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File list (Check if you may need any files):
main.c
PIC16 Voltmeter.hex
PIC16 Voltmeter.mcp
PIC16 Voltmeter.mcw