Make a Mini Arduino programmable 4 channel DC-DVM

This Instructable will teach you how to use the Arduino Analog ports. Digital Voltmeters (DVMs) are a special case of Analog to Digital converters- A/DCs.- they measure voltage - and are usually a function of a general purpose instrument called a Digital Multimeter( DMMs), commonly used to measure voltages in labs and in the field. DMMs display the measured voltage using LCDs or LEDs to display the result i ...

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