I am wanting to make a 3 digit LED display board for use on a drag car to display an ET in bracket racing. The display should be 3" tall x 12" or less in length. Te display only has to display whatever numbers that I manually input. No processing or other functions are needed. The input should be done from a small control box that can be mounted inside the drivers compartment and numbers input by using individual dials for each digit, a keypad or up/down pushbuttons. Similar productions units are sold but I cannot afford and I really would like to work on my own little electronics project. The following is a classified website that has one of these displays for sale:
https://www.racingjunk.com/exec/ca/view/338556/Digital-LED-Dial-Board.html
I mostly need help with a circuit to input the numbers for the seven segment displays. Any help is greatly appreciated and needed- it been several years since I have done any electronics work.
https://www.racingjunk.com/exec/ca/view/338556/Digital-LED-Dial-Board.html
I mostly need help with a circuit to input the numbers for the seven segment displays. Any help is greatly appreciated and needed- it been several years since I have done any electronics work.