DC 12V-60V DC Digital Lead Acid Battery Capacity LED Indicator Voltmeter Tester is Lead Acid / Lithium Ion Battery Capacity Indicator in Red color display. It has auto voltage detection and can measure up to 60V.
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https://quartzcomponents.com –
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Digital Voltmeter using AVR Microcontrolelr
http://circuitdigest.com –
In this project we are going to design a 25V range digital voltmeter by using ATMEGA32A microcontroller. In ATMEGA, we are going to use 10bit ADC (Analog to Digital Converter) to build a digital voltmeter. Now the ADC in ATMEGA can not take a input more than +5V, so for getting a higher range we are going to use a voltage divider circuit.
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