Eastern Computers - 10pcs HC-SR501 Adjustable IR Infrared PIR Motion Sensor Detector Module DIY Arduino

• Wide Operating Voltage Range: DC5V (default) to 20V
• Automatic Induction: When someone enters its sensing range input high then, in order to allow people to vacate the sensing range, it automatically starts a delay.
• Two trigger modes: L can not be repeated & H can be repeated (Jumper default is H).
• Low Power Usage: quiescent current of 65 microamps makes it especially suitable for battery-powered appliances.
• Output High Level Signal: easy to achieve by combining with various circuits.

Trigger Modes: Unrepeatable Trigger: the sensor output is high, the delay time has elapsed and the output will automatically change from high to low when activated. Repeatable trigger: if the sensor output is high and the delay time has elapsed and there is human activity in its sensing range, the module output will remain high until object detected has left the sensing range when it goes low. It is automatically extended after the sensing module detects a human body with the last activity time being the starting point of the delay time. Induction Blocking Time (default: 3-4 seconds): one may after the induction module outputs (high to low) set up a blockade followed by time during which the module does not receive any sensor signal. This feature can be achieve (inductive output time and blocking time) intervals between work which can be applied to interval detection products whilst at the same time effectively suppressing various disturbances arising during load switching. Instructions: After an induction module is powered the module initializes for around a minute or so. At this time the module will output intervals 0-3 times a minute when in standby. The lens should avoid direct lighting, wind and other interference sources close the module surface in order to avoid interference. The sensor module uses a dual probe - the probes window is rectangular with high levels of sensitivity at both ends. If the module detects a object across the entire sensor this may prevent the device from outputting a high signal. The sensor should be installed so that the direction of human activity is in a parallel direction to the sensor ensuring the human body is captured. Dual Probe Induced: In order to increase the sensing range of angles the module using a circular lens but this also makes all sides sensing probe however a object moving across the sensing range close to the module is the most effective in ensuring the module alerts.