Not content to rule the world of digital watches, Casio also dominated the home musical keyboard market in decades past. If you wanted an instrument to make noises that sounded approximately nothing like what they were supposed to be, you couldn’t go past a Casio. [Marwan] had just such a keyboard, and wanted to use it with their PC, but the low-end instrumented lacked MIDI. Of course, such functionality is but a simple hack away.
The hack involved opening up the instrument and wiring the original keyboard matrix to the digital inputs of an Arduino Uno. The keys are read as a simple multiplexed array, and with a little work, [Marwan] had the scheme figured out. With the Arduino now capable of detecting keypresses, [Marwan] whipped up some code to turn this into relevant MIDI data. Then, it was simply a case of reprogramming the Arduino Uno’s ATMega 16U2 USB interface chip to act as a USB-MIDI device, and the hack was complete.
Now, featuring a USB-MIDI interface, it’s easy to use the keyboard to play virtual instruments on any modern PC DAW. As it’s a popular standard, it should work with most tablets and smartphones too, if you’re that way inclined. Of course, if you’re more into modular synthesizers, you might want to think about working with CV instead!
Casio Small Keyboard
![Casio Keyboard Mini Casio Keyboard Mini](/uploads/1/3/8/6/138604787/880924217.jpg)
Casio Mini Keyboard Price
Designed for little fingers, but with lots of features to keep the whole family entertained, the SA-78 Mini Keyboard from Casio is a colorful and fun introduction to music. Use the 44 mini keys to explore any of. Casio's SA-78 is from the family of Mini Keyboards. The 44 key Casio SA-78 offers children the essentials for playing those first tunes. 100 tones, 50 rhythms, and 10 integrated songs provide variety. Shop for casio keyboard at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up.