Hi Everyone,
Having a collection of unfinished projects, I am determined now to have them finished & working.
The projects are unfinished due to my lack of electronics knowledge--full stop!
Could I get some advice on how to go about this particular problem I have with this project.
I made a Stop Watch circuit using an Arduino Mega board, which can be found here:
https://embedded-lab.com/blog/chipkit-project-5-digital-stopwatch-seven-segment-led-display/
I modified the code to suit what I required & it is working fine.
The idea behind the project was to:
Trigger the Stop Watch (ON at a particular set Frequency or Voltage)
then
(Off at a higher set Frequency or Voltage)
So, Stop Watch (On) at say 500Hz or X voltage then (Off) at say 2kHz or X Voltage.
I am not sure how to go about this correctly but this is how I was going to attempt it very basically?
The Stop Watch Circuit at the moment has a Tact Switch to "start & stop" the Stop Watch.
I was going to replace the Tact Switch with a Relay that gets triggered to "start & stop" the Stop Watch at the required Frequencies or Voltages.
I thought of using a 555 timer as a one shot pulse to trigger the Relay On/Off when required.
I am not sure how to get the required pulses at preset frequencies or voltages to be able to trigger the events?
Any Help would be greatly appreciated.
Cheers