Official web site. Akai LPK25 Laptop Performance Keyboard video review. Akai LPK25 review - The DSP Project. Collin's Lab: USB Hacking with Arduino. USB devices are so common nowadays – wouldn’t it be nice to use one with your homebrew electronics projects?
I wanted to use my compact USB-MIDI keyboard with my homebrew synth circuits. It seemed a simple enough prospect at first – listen to the data output, press buttons, note the changes, and then program a microcontroller to turn those changes into something I could use (like basic serial MIDI data). After a little investigating, I learned a bit about how USB works and that I’d need some extra hardware capable of playing the role of “USB Host” (a job normally left to a full computer) in order to properly work with my keyboard. Collin's Lab: USB Hacking with Arduino.