I am using arduino UNo board and i am trying to build on delay timer .
I have 2 pots 10k one pot for time Range selection and another for Scaling section.
1s 10s 1M 10M 1H 10H
0.1 0. 3 0.5 0.7 0.9 1
using 2 pot i could able to get value using analog read ports.
since i dont have real clock, I wanted to use timer interrupt for application . Timing may be no accurate but i could see the time almost equal.
if my pot Time range= 1s Time scale =0.1 The relay should turn on 1S0.1=0.1s
Time range= 10s Time scale =0.1 The relay should turn on 10S0.1=1s
Can someone guide me how i can proceed further