Summary
This project is a digital voltmeter that measures DC voltages from 0V to 25V and displays the readings on a 7-segment display. It uses an Atmega8 microcontroller with its internal ADC to accurately measure the voltage. A resistor network scales down the input voltage to within the 0-5V range suitable for the ADC.Parts used in the Digital Voltmeter using microcontroller Atmega8:
- Atmega8 microcontroller
- 7-segment display
- Resistor network (for voltage scaling)
This project gives you a digital voltmeter which can measure voltage from 0v to 25V DC. The values are displayed over the 7segment display. Atmega8 is used and the internal ADC is used to measure the DC voltage. The resistor network is used to reduce the input voltage to the 0-5v.
Photo
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