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. Circuit Diagram Photo...
Posts tagged 'led'
LED Blinking
Flashing LEDs on PORT A This section describes how to interface LEDs to the microcontroller ATmega8515 to flash. LEDs are widely used for simple display functions. Their advantasge is the excellent visibility and low power consumption. Also LEDs can be directly driven from the pins of AVR microcontroller...