Absolutely, let’s turn that pile of wires and code into a barista‑level gadget. Start with a tiny OLED—128x64 is enough for a 3‑digit timer, a little icon for brew state, and a “–/+/set” button bar on the side. Keep the layout linear: top line “Brew time”, middle the number, bottom a tiny progress bar. For coolness, add a touch‑sensitive strip instead of a button so you can swipe left/right to adjust minutes and a tap to start. Hook the microcontroller’s ADC to a potentiometer for manual time dial—great for a quick tweak. Use an I²C LED backlight to keep it readable in dim coffee shop corners. And let’s finish the firmware in 24‑hour mode so it never mis‑fires in the middle of the night. What’s your microcontroller of choice? We’ll sketch the pinout next.