We’ve heard a few times that there’s some trouble getting the keyboard to play different notes and that it will play the same note, regardless of which key is pressed. Here’s a bit more information about this Synth Kit favorite that might help to clear things up.
The keyboard can be a bit tricky, as it is a controller (see pg. 9 in your Synth Kit booklet for more info) and the oscillator is a signal generator (pg. 8). The keyboard doesn’t generate it’s own signal that you can adjust and hear on the speaker on its own, but instead puts out a steady voltage that affects the pitch of the sound wave generated by the oscillator.
Because it is a controller, the keyboard has to come before the oscillator in the circuit in order to work properly. Depending on your setup, the root of your trouble might be that the keyboard is placed after the oscillator or that the that the circuit is missing a signal generator (oscillator or random).
What tips do you have for getting the most out of your keyboard?