Arduino/ESP32 Code

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Frequency Presets

• Primary: 80–120 Hz (Highly Effective)
• Secondary: 50–80 Hz, 120–150 Hz
• Amplitude: 0.5–3 g
• Pattern: Random bursts recommended

Hardware & Setup

Required: ESP32/Arduino, DRV2605L driver, LRA/ERM motor, Ground pad (metal/wood).

Wiring: ESP32 I²C SDA/SCL → DRV2605L, Motor → OUT+/OUT−, Power: ESP32 5V.

Randomized vibration pattern prevents habituation. Burst ON: 5–10s, OFF: 30–90s.