Electronics Projects, Atmel Atmega8 Multimeter Circuit (led display) article
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Hello, “Multimeter” was the only title that first came to my mind to. Voltmeter (positive DC voltage) from 0.00 to 9.99 V and 10.0 – 30.0 V with automatic range switching. Frequency counter 0 .. 7.999 MHz (theoretisch. ..) with automatic Change the time base
Logic tester L – Prohibited area – H (actually open line). The hardware is intentionally minimalist, the measurement accuracy miserable, voltage about 2%, frequency about 0.1%. Voltage is applied to unfavorable resistance values , at a frequency slightly ungünsitgen Counter-handling.
Source: mikrocontroller.net/ Atmel Atmega8 AVR Multimeter Circuit schematic AVR Studio source code files alternative link: atmel-atmega8-multimeter-circuit-led-display.rar alternative link2