- #1
xtremeblue
- 3
- 0
I need to make a timing circuit that will count 30 seconds and give a high output. I was going to use a monostable 555 with 90k and 10uf as my values. Using the formula I am getting a time of 1 sec. I use the program "circuitmaker" to make the circuit (as shown in the pic) but the output it shows this making is not a nice square wave that I can use to make a d-flip flop count. If anyone has made a counting circuit that is simaliar can you please send me a pic or advice on how to revise my circuit so that it will work. Also would a ripple counter be better for the counting? Thanks