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Home/transistors

Tag: transistors

A transistor is a device that acts as a switch or an amplifier for regulating voltage or current

volt.tech Latest Questions

ashishgawade
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ashishgawade
Asked: February 17, 2023In: Wireless Connectivity

What is the Correct Way to Control 2x Solenoid 12v?

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Hi, It’s my first post today. I am building a lock system and in my result, I need to control 2 selenoids (Independently). Basically, I am looking for a way to switch the impulse between pins. The system is based on QR ...Read more

Hi,

It’s my first post today. I am building a lock system and in my result, I need to control 2 selenoids (Independently). Basically, I am looking for a way to switch the impulse between pins.

The system is based on QR verification. External software will be communicating with esp and esp (based on the input) will decide which selenoid should open.

I am mostly a web dev with a lack of expertise in embedded stuff and so far I’ve made simple solutions based on one of the youtube tutorials. It looks like this (esp instead of raspberry).

I wonder how I could extend this construction to achieve the below. Do I need an alternate 12v supply, alternate relay, etc? Or maybe some transistors? I would appreciate any hint

Thank You

Read less
esp32espressifraspberysolenoidtransistors
  1. vikas Nagpal
    Added an answer on February 21, 2023 at 11:23 am

    You're practically correct! You need two modules, but one 12V supply is enough. You can wire the 12V and GNDs together. You have to be alert, the power supply should be suitable to power both solenoids, so in the case of two 2A solenoids, you need a 4A collection.

    You’re practically correct!

    You need two modules, but one 12V supply is enough. You can wire the 12V and GNDs together. You have to be alert, the power supply should be suitable to power both solenoids, so in the case of two 2A solenoids, you need a 4A collection.

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