설명
Pyroelectric Infrared PIR Module
이론
IR Pyroelectric Infrared
品名
HC-SR501 Infrared PIR Module
Working Voltage Range
DC 4.5V- 20V
Voltage Output
High/Low level signal:3.3V TTL output
Detection distance
3--7M(can be adjusted)
Delay time
5-200S(can be adjusted, default 5s +-3%)
Blockade time
2.5 S (default)
Trigger
L: Non-repeatable trigger H: Repeat Trigger (default)
Dimension
3.2cm x 2.4cm x 1.8cm (approx)