How to drive 2-digit seven-segment display using 16F690 ?

swapnil · Joined: 15 Dec 2016 Posts: 13 Location: delhi

Dear friend, please help me out to drive two-digit seven-segment display.

For adc 10-bit resolution, 16F690 is suitable for me using 2.5 volt reference. Please suggest the code.
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heroswap1981

temtronic · Posted: Wed Mar 08, 2017 5:58 pm

Start with the 1Hz LED program, to confirm you can cut code/compile/burn and run the PIC.

Then decide on which 7 I/O pins will go to your 1s digit, then which 7 for the 10s digit. You can onlydisplay 00 to 99, so really don't need a 10bit ADC.

cut code to display 0...9 on each digit.
cut code to display 00 to 99 on the displays
cut code to read pot on ADC input pin and display on LEDs

note: you will need to translate 0-255 to 00-99
note: be sure to use current limiting resistors on LEDs

this is a start, should take 1-2 days

Jay