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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.

latching

  1. P

    Self-shutoff music player with rechargeable batteries for Kids

    Hi all, I'm building a kid MP3 player with a few buttons for my 2 years old son. It's very simple: button pressed-> turn up -> play music -> auto shutoff. For my first project I selected ready-made boards (with links): LilyPad MP3: it is an arduino 3.3V with a MCP73831 3.7V Lipo charger...
  2. M

    Wireless doorbell to latching ON/OFF Switch

    I would like to use a wireless doorbell I have to control a latching ON/OFF Switch, I found this great video My receiver circuit is slightly different as it has a CD4069 but I believe it won't matter as the wires going to speaker are used. The schematic is not clear on the part where the 2...
  3. V

    2 Pulses to 1 Pulse generator with higher current

    Hi, I am new to this forum and really don't know how it works. I have a request - I am looking for a pulse generator that generates 1 pulse for every 2 pulses it receives and also boost the current from 150 mA to 300 mA. Is there any off the shelf circuit that I can buy ?. The pulses generated...
  4. Gabriel Sá Pinto

    Measuring LCL and OVP thresholds in LTSPICE

    Hi there! I've been given a group of circuit schematics for testing and I must measure the current and voltage thresholds on a Latching Current Limiter and Overhead voltage Protector respectively. I know how to simulate and measure currents and voltages in LTSPICE but something about the...
  5. J

    Single pulse latching relay?

    I'm working on a project for school, it's basically a IR controlled fan with 9V DC. Basically you press any button on a tv remote and the IR sensor ( TSOP 1838) picks up the signal and outputs it to the fan and the fan spins. Problem with this is I have to continuously keep a button pressed on...

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