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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.

Recent content by brentnagel

  1. B

    relay or 555?

    Yes, it is completely off at times
  2. B

    relay or 555?

    After reviewing a few missing pulse detector examples I'm concerned about how it can tell the difference if the input stays high vs flashing If the input is flashing pin3 will be high If the input is steady pin3 will be high I need to somehow separate those 2 states ??
  3. B

    relay or 555?

    Thanks Chris - that should get me started int he right direction. 4pyros - the flashing and non-flashing states will be separate circuits
  4. B

    relay or 555?

    summary of my problem... I want to capture different states of a machine that are determined by one cycle light. States: 1. light is flashing (roughly 1s ON/OFF) - the machine is in waiting mode 2. light is steady on - machine is in cycle mode currently the light is connected to a...

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