Parts
Parts library
Every component the build engine knows how to wire and program. Mention any of these in a prompt and it lands on your breadboard.
Output
LED (5 mm) + 220 Ω resistor
A basic indicator light. Always pair with a current-limiting resistor.
2 pins · works with UNO / ESP32 / PICO
Output
Passive piezo buzzer
Plays tones with the tone() function — from gentle chirps to full alarms.
2 pins · works with UNO / ESP32 / PICO
Output
WS2812B NeoPixel ring (8 px)
Individually addressable RGB pixels — one data wire, all the colors.
3 pins · works with UNO / ESP32 / PICO