I use rpi and arduino uno.
The uno can run off a 12v supply to it's dc socket.
I bought a 160G usb drive to boot the rpi but it complained about 5v supply
so set it up through usb powered.
the plugs look the same but plugged the 12v into the powered usb instead of 5v supply.
Loud whining noise and found I'd blown powered usb adaptor, passive usb adaptor, usb keyboard and mouse!
Funny thing is the rpi3 still works...well not funny really.
If there's a moral it's keep things tidy.
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I ordered a £5 usb kb.
I tried taking a ps2 kb apart to change the lead cos I can't find ps2 to usb adaptors I got.
Removed all visible screws and it still won't come apart.
Then in these times thought a few new keyboards might be more sterile.
You can't wash them as the carbon keys don't like it.
I don't know why I keep old stuff...I had a kb with magnets on the keys and reed switches on the pcb. That you could wash,
I'll try cutting the wires on another ps kb and join to usb to test but the all those old cream colour.
I think I jiggered the black one trying to take it apart...
I'm usually good at that...it's putting back together is tricky.
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It hits the fan.
Thing is we take the kb for granted.
Not really "cleanable".
New ones prices vary and what you expect for £5 but were old ones any bettere with all the extra windows and media keys. Same rubbish key tech.
A ps2 kb to usb is £3.
and the keyboards I got are £30 so gone for adaptor cable £2.60 free p&p......
only for rpi really but spares handy
Last edit: stan cartwright 2021-01-10
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I use rpi and arduino uno.
The uno can run off a 12v supply to it's dc socket.
I bought a 160G usb drive to boot the rpi but it complained about 5v supply
so set it up through usb powered.
the plugs look the same but plugged the 12v into the powered usb instead of 5v supply.
Loud whining noise and found I'd blown powered usb adaptor, passive usb adaptor, usb keyboard and mouse!
Funny thing is the rpi3 still works...well not funny really.
If there's a moral it's keep things tidy.
I ordered a £5 usb kb.
I tried taking a ps2 kb apart to change the lead cos I can't find ps2 to usb adaptors I got.
Removed all visible screws and it still won't come apart.
Then in these times thought a few new keyboards might be more sterile.
You can't wash them as the carbon keys don't like it.
I don't know why I keep old stuff...I had a kb with magnets on the keys and reed switches on the pcb. That you could wash,
I'll try cutting the wires on another ps kb and join to usb to test but the all those old cream colour.
I think I jiggered the black one trying to take it apart...
I'm usually good at that...it's putting back together is tricky.
Bad luck is bad luck...
It hits the fan.
Thing is we take the kb for granted.
Not really "cleanable".
New ones prices vary and what you expect for £5 but were old ones any bettere with all the extra windows and media keys. Same rubbish key tech.
A ps2 kb to usb is £3.
and the keyboards I got are £30 so gone for adaptor cable £2.60 free p&p......
only for rpi really but spares handy
Last edit: stan cartwright 2021-01-10