HC-SR501 Passive InfraRed (PIR) motion sensor can be used alone or with Arduino
or other microcontroller. Adjustable sensitivity and timing.
Working voltage: 5V
Quiescent current: less than 50 ua
Output voltage: 3.3V high, 0V low
Range: 3m to 5m adjustable
Turn on Time: 0.5S to 200S adjustable
Size: 33 x 24 x 25mm.
Board Connections:
Vcc +5V Supply positive
OUT Digital output
GND Supply negative
Price: $3.80