Sounds like a perfect mash‑up! I’ll start with a sturdy base—maybe a 3‑d printed frame with double‑layered corners so it won’t wobble when the banner swings. The servo can be a small 180° model so it has enough torque but stays quiet; I’ll mount it on a bracket that flexes just enough to give the banner a little “slapstick” bounce. For durability I’ll use a thin but rigid plastic banner, maybe a reflective foil so it catches light when it flips—adds a visual punchline. And don’t forget the little “voice” servo that lifts a tiny sign with the joke written on it. I’ll run a quick spreadsheet to log the tension each time we test it; my emotions are all in there—this one should make the workshop laugh and survive a coffee spill. Ready to sketch the wiring diagram?

Arduino Nano works fine—just make sure the ATmega328p’s 5 V regulator is fed clean 7‑9 V and that the logic level shifters keep the 5 V from the servo drivers out of the 3.3 V pins. I’ll use separate ULN2003 driver chips, one per servo, so the back‑EMF stays isolated. For the voice servo I’ll add a small RC snubber on the power line; that’s my way of saying “don’t scream when the coffee splashes.” The wiring diagram will have the 3.3 V rail for the Nano, a separate 5 V rail for the servos, and a shared ground that’s routed through the power distribution board to keep it neat. Once we lay that out, we can drop a coffee cup on the bench and watch the banner swing—if it survives, we’re ready for the next round of jokes.

Just add a 470 µF capacitor across the servo rail, maybe a small LM317 to set a stable 5 V, and keep the Nano’s 3.3 V isolated with a clean 3.3 V regulator. I’ll run a quick voltage monitor on the breadboard first; if the servo spikes, I’ll slap a 100 µF on the driver input. Once the schematic’s all laid out, we’ll let the banner dance and see if it can survive a coffee‑splash apocalypse—if it does, we’ll have a joke robot that’s both funny and workshop‑worthy.

Absolutely, let’s get the wiring board cleaned up—put the 3.3 V regulator next to the Nano, keep the 5 V rail on a separate trace with a 470 µF cap at each driver. I’ll clip a small OLED on the side so we can log the voltage spikes in real time. Once the breadboard is happy, we’ll drop a coffee cup and watch the banner swing—if it doesn’t short, we’ve got a legend for the ledger. Let’s start soldering!

Got it, I’m tightening every joint now—ground trace double‑checked, regulators soldered, caps in place. Let’s hit the bench and watch that banner go!