Neat Voice Operated Switch Circuit Diagram
Schematic of the sound activated switch circuit.
Voice operated switch circuit diagram. Allow a few seconds for the relay to be switched off. If an ecm is used then r1 shown dotted will need to be included. Although you may try to drive and operate the transceiver simultaneously this will distract and is very dangerous.
When you first connect the supply voltage to the sound activated switch circuit the relay will be energised because of the effect of capacitor c2. A higher value results in a longer on period and vice versa. The post details 3 simple sound activated relay switch circuits which can used as a module for any system that might be assigned to trigger by detecting some kind of sound pressure level or simply applications such as a voice activated alarm security circuit.
Voice operated switch circuit there are many situations where you need to activate a certain device but you just cannot do it because your hands are busy or just cannot let go. Jun 24 2019 how to build voice activated switch circuit diagram sound activated switch circuit electroschematics sound activated switch schematic de. The output switch of this circuit is act by a relay.
You can increase or decrease the on period by changing the value of c2. This is the circuit diagram of a voice operated relay. It similar with sound activation switch circuit which will turn on and turn off connect and disconnect the switch depending on the sound input.
This sensitive sound operated switch can be used with a dynamic microphone insert as above or be used with an electret ecm microphone.