6pcs HC-SR501 High Sensitivity Human Infrared Sensing Module Pyroelectric Infrared Sensor Compatible with Raspberry Pi

Key features

• The working voltage of this module is DC4.5-20V; it has full automatic sensing. When someone enters its sensing range, it inputs a high level; when someone leaves the sensing range, it automatically delays the high level and outputs a low level.
• The application scope of this module: automatic lighting of various activity venues; automatic operation of various sensing electrical appliances; and alarm systems and anti-theft systems in sensitive areas of enterprises, hotels, shopping malls, and warehouses, etc.
• The module has a reserved position for setting photosensitive control (photosensitive control is an optional function, and photoresistors are not installed at the factory. If necessary, please purchase photoresistors separately and install them yourself)
• The module has two trigger modes: L is non-repeatable, H is repeatable; jumper selection, default is H
• The module has a sensing delay time: 0.5-200S (adjustable) can be made in the range of zero seconds to tens of minutes; sensing blocking time: 2.5S (default) can be made in the range of zero seconds to tens of seconds

Product Overview:The HC-SR501 is an infrared-based automatic control module designed with the LHI778 sensor, known for its high sensitivity and strong reliability. It operates in a voltage-controlled mode and is widely used in various automatic sensing devices, particularly in battery-powered automatic control products.Product Name: HC-SR501 PIR Motion Sensor ModulePCB Dimensions: 32mm (L) × 24mm (W) × 18mm (H) / 1.26in × 0.94in × 0.71inLens Diameter: 23mm / 0.91inProduct Weight: 6.4g / 0.23ozOperating Voltage Range: 4.5-20V DCStatic Current: ＜ 50uAOutput Level: High 3.3V / Low 0VTrigger Modes:L: Non-repeatable triggerH: Repeatable trigger (default setting)Delay Time: 0.5-200 seconds (adjustable) — can be set to range from fractions of a second to several minutes.Block Time: 2.5 seconds (default) — can be set to range from fractions of a second to several seconds.Sensing Angle: ＜100° cone angleSensing range: within 7 meters/23ftOperating Temperature: -15°C to +70°CUsage Instructions:Initialization:After powering on, the module requires about one minute for initialization. During this time, it may output signals 0-3 times intermittently. After the initialization phase, the module en

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