AVR-Based DC Voltmeter
This small hand-held multimeter measures DC voltage up to ±50 V. An on-board short-circuit detector is useful for checking wires and bulbs. The low-power, inexpensive system is designed around the ATmega8L-8MI microcontroller.
Link: http://www.circuitcellar.com/avr2004/DA3780.html
This small hand-held multimeter measures DC voltage up to ±50 V. An on-board short-circuit detector is useful for checking wires and bulbs. The low-power, inexpensive system is designed around the ATmega8L-8MI microcontroller.
Link: http://www.circuitcellar.com/avr2004/DA3780.html