Single channel voice activated intercom circuit diagram
Source: InternetPublisher:sigma Keywords: Walkie talkie machine circuit diagram microphone Updated: 2021/11/12
Omnidirectional electret microphones can be used to collect sound and convert it into electrical signals . The microphone's output follows two paths. In the first path, the signal is sent to the inverting input pin 6. In the second path, the microphone signal is sent to the non-inverting input U2, where it is amplified and sent to the speaker SPKR1.
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