It's not clear what you are trying to do.
I think what the OP wants is something like this:
Code: Select all
Possibly, but I suspect it needs to be enclosed.
Even betterfruitoftheloom wrote: ↑Tue Oct 22, 2019 8:07 amhttps://www.screwfix.com/p/lap-usb-char ... hite/151CC
Note that most laptop power bricks are not 12v, but instead either 19v or 20v
thanks this is more what im looking for. it will be built in a case anyway. its a access control unit we have done using PIGPIO and Wiegand. the idea is to build this into a automated large sliding gate. many thanks i think im going to try this
so this is a "replacement" for a wall receptacle, and just supply 5v?fruitoftheloom wrote: ↑Tue Oct 22, 2019 8:45 amhttps://www.amazon.co.uk/Bay-City-Elect ... B01BNGVCC4
Each port will deliver up to 4.2 Amps charge so that you can charge all devices with no worry.