Hi, I was wondering if there is a way to stop the signal whilst keeping the start button pressed and without pressing the stop button? One should depress and press the start button again for the next signal.
Could this work?
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I do no think your proposal will work.
The following has more chance of working:
Place
- an Elco (47 uF/25V) between SW1 and point 2 of the 555, the + of the elco towards point 2 of the 555 (so, no direct connection any more)
- a resistor of 1K between point 2 of the 555 and its Vcc (where also R4 and R6 are coupled to.
- a diode (e.g. 1n4148) parallel to the resistor of 1K added above, the cathode connected to VCC.
Doing this, SW1 gives only a very short start pulse to the 555, even when it is being pressed continously.
This is the circuit diagram of the proposal:
