Hey! I want to connect a USB keyboard to an Arduino Uno and have the Arduino react to the typed input, adding it to a buffer and eventually performing some hashing on the typed data. The code for hashing works fine, I tested it with input from the Serial monitor. What I can't figure out: Is it act…

[image] fabiante: What I can't figure out: Is it actually possible to connect a USB keyboard to the Arduino as input device. Note: I do not refer to using the Arduino as input device, I know that is another common thing people play arround with. You would need a USB Host shield for that with …

Thanks for your replay. I might give the library a try. Otherwise it seems that the general approach of using PS2 keyboards is sensible. I still wonder if it is actually possible to use USB keyboard that way. Seemed dubious to me from the very start...

[image] fabiante: Seemed dubious to me from the very start... connect USB keyboard to Arduino? at DuckDuckGo Connect a USB Keyboard with an Arduino - Hackster.io USB keyboards still support the legacy serial PS/2 protocol. Therefore these can easily used in Arduino projects. Schematic and …

USB is a complex protocol which is not available for Arduino Unos? Some Arduinos (Micro for example) support USB and can use the official Keyboard library but that does not allow the Arduino to read from a keyboard, just act as one itself. There are USB shields which handle the rather complex USB …

[image] fabiante: I still wonder if it is actually possible to use USB keyboard that way. Seemed dubious to me from the very start... I have an Arduino CW(Morse code) keyer that uses a PS2 keyboard. The connectors were/are available on Ebay.

Can a USB keyboard be used as input for an arduino

Projects General Guidance

J-M-L March 7, 2023, 8:38am 2

You would need a USB Host shield for that with the standard configuration and some coding.

If that's an option, use an old PS2 keyboard instead. There is a library to support that connection

see PS2Keyboard Library, Connect a keyboard for user input

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Can a USB keyboard be used as input for an arduino

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