Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
i'm building a project were when a visitor comes to my house and presses the door bell and i'm not in the house they will be linked to my cellphone and i will b able to communicate with them through an intercom. please help with the cellphone link circuit options
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