This is a decimal (not binary) display voltage meter that can display voltage from the source from 0V to 99V.
Change the voltage source at left bottom and observe the decimal reading in display panel.
In principle, by expanding this you can show any range of voltage. It can also be used as hexadecimal to decimal converter.
Left bottom: voltage source, 1v to 0.1v transfer.
Middle: ADC, counter (to reduce higher digit by 1, if lower digit is higher than 5), DAC to output and do the mod. Counter output is higher digit.
Middle bottom: 1V to 50V converter to trigger -1 on counter
Bottom from left to right: 1V to 10V converter for lower digit; ADC for lower digit.
