ESP32 Robot Eyes (OLED Display + TTP223 Touch Sensor)

A desk robot with feelings! The **ESP32** draws two eyes on a **0.96 inch OLED** that look around and blink on their own. Tap the **TTP223 touch sensor** and the robot gets happy, hold it and the eyes turn into hearts, poke it too often and it gets angry, ignore it for 20 seconds and it falls asleep. A **passive buzzer** gives every mood its own sound: a state machine, shape-based animation and non-blocking audio in one project.