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Data Flow sequenceDiagram participant P as Piezo Discs participant E as ESP8266 participant S as Node.js Server participant D as Web Dashboard participant U as User Browser P->>E: Generate voltage ...

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Just connect an piezo to the board and you are good to go. Pin 11 is used in every sketch because some piezo speakers can be connected between it and the close GND pin without any wiring. You can use ...

The kit comes with Arduino Mega, which will serve as the brain, along with ESP8266 Wi-Fi Shield for remote control, a motor driver to control movement, and a battery holder. A voltage meter and power ...