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i want to make a intercom / doorphone , anymore application i can added with intercom/ doorphone?? i was found some circuit design , but i hope anyone else can show me more, thank you ~
counter is an IC??
---------- Post added at 23:17 ---------- Previous post was at 23:13 ----------
is this very complicated for done without micro controller or PIC??
sound more so complicated , the circuit alike this ? but i worry how can it mix with doorbell and others function
https://www.electro-tech-online.com/attachments/electronic-projects-design-ideas-reviews/5422d1121920457-voice-recorder-isd_984.gif
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