I built a basic version of Tennis for Two a while back, using regular op amps. Some modern oscilloscopes have bad X-Y mode implementations, but most non-extreme

I built a basic version of Tennis for Two a while back, using regular op amps. Some modern oscilloscopes have bad X-Y mode implementations, but most non-extremely-cheap scopes are probably decent enough. https://blog.qiqitori.com/2024/08/implementing-tennis-for-two-using-op-amps/ https://blog.qiqitori.com/2024/08/implementing-tennis-for-tw... I'm also planning on selling a kit in the near future!