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This is the most simple USB switch I could come up with. It doesn't require IC's or any other complex circuitry. All it requires is: One 4pdt switch ...
this will differ depending on what you use, I used an old power brick. Just make a hole for your toggle switch and USB ports
Now the switch needs to be wired. It doesn't really matter what order the wires are in, as long as they line up on the switch.
Make sure double check the wiring before testing! It's a good Idea to test this before you put in the case, otherwise you might get all put together, ...
Now put your USB switch in it's case and your done
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I would also like to know if this could work in reverse. If anyone has any insight into this, that'd be appreciated. I too would like to have a usb switch that can basically act as a switch between a USB hub and two different machines.
This usb switch solve my problem of plunging unplugging USB cables. I use tenda wifi usb router with USB adapter and power bank. With this switch I can keep my usb adaptor and power bank without unplugging and just switching on power failure. This usb switch will not use any energy so that I can save my battery life. USB switcher/hub available in the market have little circuit which consume power and I do not want to loose my power bank battery.
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