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Clear diagnostic wiring schematic illustrating a circular black heart-rate breakout board with a prominent white heart graphic running to the analog input, ground, and power lanes of a blue Arduino board.
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Pulse Heart Rate Sensor Module | Pro Tronix

SKU: PRO00530
150.00 EGP
Highly compact, circular optical PPG Pulse Heart Rate Sensor. Operating at $+3.3\text{V}$ to $+5\text{V}$ with low power draw, it generates a real-time analog wave output of capillary blood pulse changes. Complete with finger strap and protective backing, it is the perfect biometric addition to Arduino, ESP32, and Raspberry Pi builds.
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