<< Mentor Note -- Thread moved from the technical Engineering forums so no HH Template is shown >> Project Description: Design a Digital Stop Watch using discrete electronic components Functions: Start, Stop, Reset Should be able to count up and count down The interval time should track the minutes, seconds and tenths of a second. Ex. 3:45.8 would be 3 minutes, 45 seconds and 8 tenths of a second The max interval (up or down) will be 9:59.0 after which watch should reset to 0:00.0 The design may be done using available logic devices or using programmable logic devices (PLDs), but no microcontroller I would appreciate some guidance on where to start with this. Like what components do I need. I did some research and basically I need a 555 timer and decoders but I would like some more advice. Any, advice ?