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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.

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  1. A

    DCF77 antenna for DIY transmitter

    Hi there I have a flipper zero and I'm trying to do this implementation https://lab.flipper.net/apps/dcf77_clock_sync in the comments it says: "When using the GPIO, best results are achieved if you connect a ferrite antenna over 330 ohm resistor and a capactior to ground." any idea what...
  2. Cosmicray

    Lighted jewelry help

    Would there be a way to make a small led light glow (even dim) constantly for six months to a year (or longer) using thin, and lightweight, batteries? I'm thinking that cell phone batteries will be small and light weight enough but not sure if it has enough stamina. The smallest led bulb I can...
  3. D

    How can I measure execution time and memory usage of C implemented libraries?

    Hello. I have the task of evaluate functions of C implemented libraries that will run on embedded systems. Those libraries are implemented in .h files and then included in implementations. I was given a FFT library implemented in C that was meant to run on Arduino. In the readme file of the...

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