Stopwatch circuit

  • Thread starter Jeff179
  • Start date
Hello,
I am in need of a schematic for a circuit that acts as a stopwatch which counts and displays seconds and 1/100ths of seconds for a high school engineering project. The circuit would have two input switches: one that acts as a start/stop button and one that acts as a reset button. After searching around on the internet, the closest thing I have found were these:

http://www.electronics-lab.com/projects/oscillators_timers/014/index.html
http://www.electronics-lab.com/projects/oscillators_timers/015/index.html

These would work except that I need it to display 1/100ths of a second as well. Having minutes also would be helpful but not necessary. Could anybody help me figure out how I could do this?
Thanks, any help is appreciated.
 

MATLABdude

Science Advisor
1,646
4
Do you know how to use a microcontroller? It'd be dead simple with one.
 

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top