Stopwatch Circuit: Schematic for High School Engineering Project

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SUMMARY

The discussion centers on creating a stopwatch circuit for a high school engineering project that counts seconds and 1/100ths of seconds. The user seeks a schematic that includes two input switches: a start/stop button and a reset button. Existing resources from Electronics Lab provide basic timer circuits, but they do not meet the requirement for displaying 1/100ths of a second. The suggestion to utilize a microcontroller is presented as a straightforward solution to achieve the desired functionality.

PREREQUISITES
  • Basic understanding of electronic circuits
  • Familiarity with microcontrollers, such as Arduino or PIC
  • Knowledge of timer circuits and their components
  • Experience with circuit schematics and design software
NEXT STEPS
  • Research microcontroller programming for stopwatch functionality
  • Explore timer circuit design using 555 timers for precision timing
  • Learn about interfacing LCD displays for time output
  • Investigate existing stopwatch projects on platforms like Arduino Project Hub
USEFUL FOR

This discussion is beneficial for high school engineering students, electronics hobbyists, and educators looking to implement practical projects involving timing circuits and microcontroller applications.

Jeff179
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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.
 
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