Specifications:
- single ATMEL ATmega8 Microcontroller used to handle all the millimeter functions.
- voltage range 0-30 Volt.
- current measure resolution 10mA (depend on current sense resistor value).
- voltage measure resolution 10mV.
- single, non isolated voltage supply.
- compact construction allowed to use MultiMate as panel meter.
- one side PCB.
- well interaction with standard LCD based on HD44780 controller
For Make this, You Can Read this Project Page Electronics Microcontroller Voltmeter / Ammeter with LCD