Mini 3 digit display digital voltmeter
If you want to build a simple and inexpensive digital voltmeter here is a mini 3 digit display digital voltmeter (this one PIC version).It’s an AVR based voltmeter module.The module has general purpose digital IO pins. You could use it as well to read a digital sensor and display the value.It can be freely programmed, calibrated and even be programmed with a non linear formula. It’s a display where you can define the relation between the measured value and the displayed number.
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