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HC-SR501 Human Body Infrared Sensor Module
Infrared sensor with control circuit board The sensitivity and holding time can be adjusted Working Voltage Range: DC 5V- 20V Current drain:<60uA Voltage Output: High/Low level signal: 3.3V TTL output Detection distance: 3--7M(can be adjusted) Detection range: <140° 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) Work temperature: -20-+80°C Trigger Method: L unrepeatable trigger / H repeatable trigger Features: 1. automatic: when someone enters the sensing range is input high level£¬ people leaving the induction range is automatically delayed closing high level. Output low level. 2. light control (optional): module to set aside a location£¬ you can set the photo control£¬ or strong light during the day without induction. Light control is an optional feature£¬ factory photoresistance is not installed. If you want£¬ please purchase the photoresistance installed. 3. two trigger modes: l not repeatable£¬ h can be repeated. Jumper option defaults to h. A. not repeatable trigger mode: after the sensor output high level£¬ delay time is over£¬ the output will automatically change from high to low level. B. can repeat triggered way: that induction output high level Hou£¬ in delay time paragraph within£¬ if has human in its induction range within activities£¬ its output will has been maintained high level£¬ until people left Hou only delay will high level becomes low level (induction module detection to human of each times activities Hou will automatically extended a delay time paragraph£¬ and to finally once activities of time for delay time of starting points). 4. induction blackout time (default setting: 0.2 sec): after each induction the induction module output (high level low level)£¬ you can immediately set a blackout time£¬ during this time the sensor does not receive any sensor signal. This feature can be achieved (sensor output and blockade times) the interval between work£¬ can be applied to interval detection products; at the same time this function can inhibit various disturbances load in the process of switching. 5. wide operating voltage range: default voltage DC5V to 20V 6. power consumption: quiescent current 65£¬ particularly suitable for battery-powered appliances. 7. high level signal output: can be easily docked with the circuit.