Need a very basic 7 segmented, 2 digit, 1/2 inch display countdown counter if it is possible. Not sure if a 555 timer is the correct controller, but something along that size.
I do not want a timer or a clock, I want a lap type countdown clicker. I want to set a number between 0-99 and every time I click the button, I want the display to go down 1 number. So I guess what would would be best is 1 button that will add 0-99 and 1 button that would subtract from 99-0 every time a button is pushed. Nothing automatic, 1 digit per click of the button. I guess I better add that I can only use 1 button for both numbers. I cannot have a button for each digit. 1 button must be able to go from 0-99 and 1 button go from 99-0
Thank you
I do not want a timer or a clock, I want a lap type countdown clicker. I want to set a number between 0-99 and every time I click the button, I want the display to go down 1 number. So I guess what would would be best is 1 button that will add 0-99 and 1 button that would subtract from 99-0 every time a button is pushed. Nothing automatic, 1 digit per click of the button. I guess I better add that I can only use 1 button for both numbers. I cannot have a button for each digit. 1 button must be able to go from 0-99 and 1 button go from 99-0
Thank you