Category: electronics

  • Bass Pedal MIDI Controller Video

    I’ve put together a short video showing the Bass Pedal project in its current state. Enjoy. The next step will be to add voice control, so that I can shift it form the default piano voice and perhaps an LCD display panel showing the currently selected options. This could display the current octave, transpose setting, […]

  • Pullup / Pulldown

    Next step in the midification process is to add the PCF8574 chips. These chips let me add multiple inputs using only three of the input lines on the Arduino. The chips can be daisy-chained together using the same three input lines so with two chips I can have sixteen inputs and still have loads in […]

  • Testing the I2C bus

    I’m using the I2C bus to read the keys in from the bass pedal. The breadboard layout is shown in an earlier post. To make sure that everything is working properly with the chips I have set up a piece of code that will read the sixteen pins in I2C chips and display their output via […]

  • Multi Button MIDI

    I’ve now mixed the single button MIDI code with the I2C code to create a Multi Button MIDI. This is just the starting point but it works perfectly. Using the same board layout as the earlier post, upload this sketch and you’ll have sixteen inputs for your MIDI device, perfect for wiring into your Bass Pedal! […]