- Module Power: 5.00V
- Module Size : 43 x 32mm(1.69×1.26″)
- Measuring Range :0 – 14PH
- Measuring Temperature: 0 – 60 ℃
- Accuracy : ± 0.1pH (25 ℃)
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- Mounting hole | Adjustable Range Detection | LED Indicators | Built-in Ambient Light Sensor | Infrared transmitting and receiving tubes | Onboard comparator circuitry | Easy to assemble | Easy to use
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PIR Motion Detector Sensor Module
The HC-SR501 PIR Motion Detector Sensor Module is a pyroelectric device that detects motion by measuring changes in the infrared levels emitted by surrounding objects. This motion can be detected by checking for a high signal on a single I/O pin.
The module has an onboard pyroelectric sensor, conditioning circuitry, and a dome-shaped Fresnel lens. It has a delay time adjustment Potentiometer and sensitivity adjustment Potentiometer.
It is used to sense the movement of people, animals, or other objects. They are commonly used in burglar alarms and automatically-activated lighting systems. Compatible with ARDUINO, RASPBERRY PI, AVR, PIC, 8051, etc.
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- Compact size
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- Blockade time: 2.5s (Default)
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- Time Setting: Turn to Right, Time Increases (About 200S); Turn to Left, Time Reduce (About 5S).
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