HC-SR501 Human Infrared Pyroelectric Sensor
Module:
Electrical parameters:
Product Type: HC--SR501 Body Sensor
Module
Operating voltage range: DC 4.5-20V
Quiescent Current: Level output: High 3.3 V /Low 0V
Trigger: L can not be repeated trigger/H can be repeated
trigger(Default repeated trigger)
Delay time: 5-200S(adjustable) the range is (0.xx second to tens of
second)
Block time: 2.5S(default)Can be made a range(0.xx to tens of
seconds
Board Dimensions: 32mm*24mm
Angle Sensor: Operation Temp: -15-+70 degrees
Lens size sensor: Diameter:23mm(Default)
Features:
1, the automatic sensor: to enter the sensor output range is high,
people leave the sensor range of the automatic
delay off high, output low.
2,the photosensitive control (optional, factory is not set) may set
the photosensitive control during the day or
light intensity without induction.
3, the temperature compensation (optional, factory is not set): In
the summer when the ambient temperature rises
to 30 ~ 32 ℃, slightly shorter detection range, temperature
compensation can be used as a performance compensation.
4, two trigger mode: (can be selected by jumpers)
a, can not repeat the trigger: the sensor output high, the delay
time is over, the output will automatically
become low from high;
b, repeatable trigger: the sensor output high after the delay
period, if the human body in its sensing range
activities, its output will remain high until after the delay will
be left high to low (sensor module review
Measured activities of each body will be automatically extended
after a delay time, and the final event of
the delay time Starting point of time).
5, with induction blocking time (the default setting: 2.5S block
time): sensor module, after each sensor output
(high change Into a low level),you can set up a blockade followed
by time period, in this time period the sensor
does not accept any sensor signal. This feature can have a "sensor
output time" and "blocking time" the interval
between the work produced can be applied to detect the interval
Products; also inhibit this function during load
switching for a variety of interference. (This time can be set at
zero seconds - Tens of seconds).
6, the working voltage range: the default voltage
DC4.5V-20V.
7, micro-power consumption: static current "50 microamps,
especially for battery-powered automatic control
products.
8, the output high level signals: types of circuits can be easily
and docking.
Instructions:
1. Sensing module for about a minute after power initialization
time, during the interval to the output module
0-3 times a minute in standby mode.
2. Should avoid direct lighting such as interference sources close
the surface of the lens module so as to avoid the
introduction of interference signal generator malfunction; use of
the environment to avoid the flow of the wind, the
wind sensor will also cause interference.
3. Sensor module using a dual probe, the probe's window is
rectangular, dual (A per B million) in the direction of
the ends of long, when the body passed from left to right or right
to left when the reach the dual IR time, distance
difference, the greater the difference, more sensitive sensors,
when the body from the front to the probe or from top
to bottom or from bottom to top direction passing, dual IR not
detected changes in the distance, no difference value,
the sensor insensitive or does not work; so the sensors should be
installed dual direction of the probe with human
activities as much as possible parallel to the direction of maximum
to ensure that the body has been passed by the
dual sensor probe. To increase the sensing range of angles, the
module using a circular lens, the probe also makes sense
on all four sides, but still higher than the upper and lower left
and right direction of sensing range, sensitivity and
strong, still as far as possible by the above installation
requirements.VCC, trig (control side), echo (receiving end),
GND
4. Dimensions and Adjustment:
Note: The potentiometer clockwise to adjust the distance, sensing
range increases (about 7 meters), on the contrary,
sensing range decreases (about 3 meters).Delay adjustment
potentiometer clockwise rotation, sensor delay longer (about
300S),
the other hand, induction by the short delay (about 5S).
5. Applications
a, Security Products
b, the human body sensors toys
c, the human body sensor lighting
d, industrial automation and control, etc.
It can automatically and quickly open various types of
incandescent, fluorescent lamps, buzzer, automatic doors,
electric fans,automatic washing machine and dryer Machines and
other devices,is a hightech products. Especially
suitable for enterprises, hotels, shopping malls, warehouses and
family aisles, corridors and other sensitive
Sense of region, or for the security zone automatic lighting,
lighting and alarm systems.
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