Orange -Human body sensing IR pyroelectric infrared sensor anti-theft alarm electronic kit students electronic principle study HC-SR501 HG7881 H-Bridge 4CH DC - 2CH Stepper Motor Driver Board Biometric Access Control: Combine pulse

Biometric Access Control: Combine pulse detection with a fingerprint module to create a liveness-verified biometric lock that rejects spoofed fingerprints

0B protocol implementation on Arduino platforms

Multi-Material Printing - Compatible with PLA

Efficient Neodymium Magnets: Strong rare-earth magnets ensure consistent magnetic flux and smooth

6*8mm 100uH DIP Power Inductor (Pack of 5)

Orange -Human body sensing IR pyroelectric infrared sensor anti-theft alarm electronic kit students electronic principle study HC-SR501 HG7881 H-Bridge 4CH DC - 2CH Stepper Motor Driver Board Biometric Access Control: Combine pulseOrange Human body sensing IR pyroelectric infrared sensor anti theft alarm electronic kit students electronic principle study HC SR501