This is a simple design for ring detector circuit. This is a small circuit that can changes the tone signal to 5 DC pulses that directly can feed by microcontroler pin. This is the figure of the circuit.
This circuit is explanation the call is received or call is calling. You can monitoring the tone signal with off-hook signal detector that can you read in the related site link in project-microcontroler.irone.org. In this circuit output pulse for each ring is delaying between the two pulses must be monitoring and if it is exceeds 4 seconds.
This circuit is explanation the call is received or call is calling. You can monitoring the tone signal with off-hook signal detector that can you read in the related site link in project-microcontroler.irone.org. In this circuit output pulse for each ring is delaying between the two pulses must be monitoring and if it is exceeds 4 seconds.
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