Fc 51 Ir Sensor Datasheet Hot !!hot!! -
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The module runs warm because of the linear regulator and continuous IR LED drive. As long as you can touch it for a few seconds without burning, it’s likely fine. If it smells or exceeds ~75°C, cut power and inspect your wiring.
The module features a 3-pin header for easy connection to microcontrollers like Arduino or Raspberry Pi. Power input (3V – 5V). GND: Ground. OUT: Digital output interface. Key Features & Components
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