Hi all, I would like to build a counter circuit for my project. Basically, i need a counter that turns on the product for a specified number from a time range of 5-30 seconds and i need it to turn off the product for a different specified time also of the range 5-30 seconds. So far i have two 5 bit counters connected through and AND gate to a 5 bit binary switch, i would like to know how i could toggle between the two counters. For example i want the device kept ON for 20 seconds then OFF for 10 seconds. After that repeating the cycle of ON for 20 seconds and OFF for 10 seconds. Any recommendations of the logic circuit or the possible ics i could use?