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The IR detector have a demodulator inside that looks for modulated IR at 38 KHz
or a single four-wire two-phase stepper motor
You may also use one of our fingerprints (R307 - R305- K202 ) as an access control to electronic lock as shown in video below
It essentially combines a simple optical heart rate sensor with amplification and noise cancellation circuitry making it fast and easy to get reliable pulse readings
Full scale current match: ±1 LSB
Micro Metal Gear DC Motor (30 RPM) 6V N20 Advanced Light Sensor (digital) The IR detector have aIntroduction : Micro Metal Gear DC Motor (30 RPM) 6V N20 6V 30 Rpm Micro Metal Gear Motor is a small volume, big torsion, all metal gear. Features : Gear ratio: 30: 1 rpm @ 6V: 30 Rpm Stall current @ 6V: 420mA Stall torque @ 6V: 800 g. cm Weight: 10g