Mock Badge for the 2023 Hackaday Competition (Open Source)

This year, Supercon badges become analog badges! (Or at least pretend to be pretty convincing.) Taking inspiration from the fluorescent oscilloscopes of the past, the 2023 Vectorscope badge is part analog audio playground, part art project, and all about prototyping. Who doesn't love the warm glow and lovely green fluorescence of an old Tektronix tube scope? Conceptually, the badge is two separate devices rolled into one. The most obvious is the vectorscope, which takes voltages in the 0 V – 3 V range and plots them out in an XY pattern, giving a glorious, fake phosphorescent effect on a lovely round IPS screen. We also connect an audio amplifier to the Y input to play whatever waveform you're watching. But you don't have to carry around your own waveform - the other half of the badge is an arbitrary programmable waveform generator that drives both channels. First, it is configurable via front panel controls, so you are obviously invited to make Lissajous figures and store them in program memory. Combining the two halves absorbs voltage and time, but only if you connect them naturally. You see, this is not an analog simulation - this is the programmable equivalent of the real deal, provided by the AK4619 ADC/DAC. The voltage on one set of pins disappears and the voltage on the other set of pins returns. You can also use these voltages in the via space as we provide a very generous prototyping board for your analog exploration. Does this immediately suggest a curve tracer to you? Be our guest! Other forms of analog video tampering? We want to see what you think. Make an audio filter and watch it work on the screen before your eyes. Of course, we won’t leave you coding monkeys out in the cold. MicroPython puts the "programming" into programmable waveform generators. If you're not satisfied with the four commonly used waveforms, we invite you to write your own. This is where it gets arty. You can upload your own repetitive waveforms to the onboard direct digital synthesizer routine, but why stop there? We've kept most of the underlying RP2040's processing power available for you to use. Four buttons on the front panel let you store and play codes so you have room for demos, and a sweet joystick with custom keycaps keeps you in control.