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.
The equipment as originally installed has only one signal that goes to the buzzer. As installed, this buzzer is used to provide notice that the automation is beginning to move and also to provide an audible notice when the system is in an alarm state. What was not part of the original system...
I have a request to provide an external/remote alarm light from a piece of equipment my company installed but the only signal source is a buzzer that goes off when the system is in an alarm state but also beeps when the automation begins to move. So, I built a simple circuit with an...
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