ESP32 Earthquake Shake Alarm (MPU-6050 + OLED Display + Buzzer)

This screen notices when your desk starts to shake! The **ESP32** reads vibration from an **MPU-6050** accelerometer and draws a live, scrolling seismograph trace on a **0.96 inch OLED**. Above the threshold a **passive buzzer** sounds a siren and a **red LED** blinks; one button mutes and resets it. The alarm requires three consecutive readings above the threshold; a spike lasting just one reading is rejected, but a single knock whose vibrations last long enough can still trigger it. It is an e