[SOLVED] Displaying Current in 2 digit

[grittinjames]

Hi,
I want to display current measured in 2 digit. Please suggest me how to do it.

nominal current sensor voltage is 2.5V. and from thr 25mv per Amps.
I want to display this in two digit from 1 to 20amps.I need help only in convertion to digit. I have program to display the digits. I am using ATmega8 chip. Reference is 5V

Thanks

 

[papunblg]

You need a ADC to convert voltage to binary output.

https://ww1.microchip.com/downloads/en/devicedoc/21841a.pdf

For ideas you may see https://www.edaboard.com/threads/217541/ (using 8051)

 

[poorchava]

Measure voltage with ADC, convert binary to meaningful number (like amount of milivolts), from this calculate current, convert to unsigned int or whatever your display function takes as an argument and then display it.