thank my brother. i made a test. I moved the base of the pir, the por was blind.. pointing to the wall.. and by this way..shoots signal . not read any body. just moved their base. ...i think it emits something that measures the movement
hello sir after watching your video I thought if I can use a PIR sensor instead of an ultrasonic sensor in obstacle avoiding car will it work or it will keep crasing
What if i want the sensor to detect movement from one side only If there is movement on the other side, it should be disregarded. I.e. i want to reduce the coverage from 180⁰ to 90⁰. Is it possible?
I have taken a and b just to explain how it works. What matters is the change in the radiation level. And yes, first a-b will be negative and when that person is leaving, it'll be positive. No matter what there will be a change.
@@techweek8208 thank you for reply , i am still curious what happens if two people approach from both sides ,will it cancel the signal in oppose to each other? What if someone is standing in the range for long time? What will be the response of the sensor? Please guide
@@shubhampatil899 There will not be any cancellation of the signal. It may detect the change. If a person stands in front, the sensor will detect the presence only the first time. The only way to know is by testing. Do let me know if this helps.
@@shubhampatil899 Normally the sensor won't detect anything but the chance that 2 objects do exactly the same thing perfect symetric is extremely small
thank my brother. i made a test. I moved the base of the pir, the por was blind.. pointing to the wall.. and by this way..shoots signal . not read any body. just moved their base. ...i think it emits something that measures the movement
What is it's working distance?
As you described that the sensor detect the human body temp. Can it work in bathroom and can it work in winter season?
The range is about 4 to 6m. It will not detect the body temperature, it's detecting the IR radiation. Yes, you can use it anywhere.
TechWeek can I use it in bathroom to operating bathoom light?
Yes, you can but you have to set the range.
@@techweek8208 how can we set the range?
Hey .. how does fast motion and slow motion afffects sensor??
Also does the objects' shape and size matters!?
Pls reply!!!!!
hello sir after watching your video I thought if I can use a PIR sensor instead of an ultrasonic sensor in obstacle avoiding car
will it work or it will keep crasing
Will the pir sensor works in rain when it's used in outdoor
How 2 slots Wii divided physically .
whats the name of 2 slots
how to check if a person is moving from a to b or b to a, means which part is intercepted first?
A single PIR sensor just indicates the movement. If you want to know the direction of the movement, you can easily do that with two of such sensors.
What happens when we get positive differential change and negative differential change...
A positive or negative change only indicates that a motion has been detected.
Please how to work PIR sensor with Camera with raley switch contector.
Can u tell me ,what is the range of pir sensor to detect the object??
Thank u very much
What if i want the sensor to detect movement from one side only
If there is movement on the other side, it should be disregarded. I.e. i want to reduce the coverage from 180⁰ to 90⁰. Is it possible?
You cannot do that with one sensor I guess. Use two sensors
You cannot do that with one sensor I guess. Use two sensors.
Thanks a lot ,We hope you make real try
Hello,
Can I ask question about PIR?
From where can i get cheap and good pir motion sensor
You can get it from any electronic markets but may have to compromise for the quality.
You can use the link in the description to get one.
AliExpress
Can you contact me in private
Bsh15@hotmail.com
if person approach from second half then b is high than a, in that case a - b gives negative ??????
I have taken a and b just to explain how it works. What matters is the change in the radiation level. And yes, first a-b will be negative and when that person is leaving, it'll be positive. No matter what there will be a change.
@@techweek8208 thank you for reply , i am still curious what happens if two people approach from both sides ,will it cancel the signal in oppose to each other?
What if someone is standing in the range for long time? What will be the response of the sensor? Please guide
@@shubhampatil899
There will not be any cancellation of the signal. It may detect the change. If a person stands in front, the sensor will detect the presence only the first time. The only way to know is by testing. Do let me know if this helps.
@@shubhampatil899 Normally the sensor won't detect anything but the chance that 2 objects do exactly the same thing perfect symetric is extremely small
can we get distance as a output
You cannot get distance with this sensor. Use ultrasonic sensor for that.
Sir how PIR sensor give digital output
With the help of op-amps and BIS0001 IC. You can learn more about it here: learn.adafruit.com/pir-passive-infrared-proximity-motion-sensor/overview
How 2 slots Wii divided physically .
whats the name of 2 slots