Raspberry Pi Pico Traffic Light Simulator (3 LEDs Sequential, GP11/GP12/GP13)
We simulate a real traffic light with red, yellow and green LEDs — the first 3-LED project of the Pico series! Green 4 sec "go", yellow 1.5 sec "ready", red 3 sec "stop" and red+yellow 1 sec "starting" (European traffic light pattern). Learn **function definition** (`def hepsini_sondur()`), **state machine logic** (sequence) and **multi-GPIO synchronization**. Very simple circuit: 3 LEDs on GP11 (Green), GP12 (Yellow), GP13 (Red), each with a 220Ω current-limiting resistor. GP11-GP12-GP13 are ad
