kkeast
USA
Asked
— Edited
Hi All,
I purchased a few of these PIR sensors on ebail for $4.50 (USD) each. They took a while to arrive from you all know where but they seem pretty cool. I am planning to add them to my sentry robot project at some point. I bench tested them and they seem too work just fine off the EZB using a single Digital port. +VCC, GND, signal. device trips high when motion is detected.
Pyroelectric Infrared Module (PIR)
I ordered some of the
mini PIR module
These are so small with only a 10mm hole required!
I bought it because I wanted to make a Portal 2 turret, along with the laser modules
mini laser module
I may get some to do just that...great find!
They really are small
The portal 2 turret was on instructables.com
www.instructables.com/id/Building-a-Portal-Turret/
Although I feel that it can do so much more with an EZ-B at the core
I picked up
this
sensor at radio shack, 10 bucks.....bigger than the one you have but comes with the 3 pin connector...
I want to make sure these sensors are not for object detection.
Right?
These detect heat and movement, P.I.R. (Passive Infra Red), so they will only work when you move your hand in front of them, if you keep your hand still they will not detect it, you would need an A.I.R (Active Infra Red) which monitor the area and activate when there is a change in the environment.
Hope this helps
Regards
Darren
I also want to add sound sensors next to the PIR sensor.
But i was wondering if that would be dumb because the PIR sensor would always go off....making the sound sensor useless....
but now that i know what a PIR vs AIR is, this will work!
thanks for the new wrinkle in my brain.
i am looking to get a PIR but analog output to measure person distance to camera
found one at digikey AMN22111 $15 LOOKING LOWER COST ITEM ,but specs are good
now on the mini PIR looks good for another project also
digital is great for detecting in a person comes in range of the sensor,like kind used for turning on night lights ,alarms,light switch ,mostly high with in range when not low
on analog it detects the person and how far away from sensor,best one on the market is TPA81 THERMAL ARRAY
THAT HAS 8 PIR in array and builds of a thermal image and compares to room temperature.it has IC2 output
on digikey sensor it has analog voltage
digital PIR also has analog circuit,then has a comparator ,that has a digital output and most have a set pot for range ,ALSO SOME HAS A SPECIAL CONE FOR to focus a wide detection area
another one used alot is ELTEC 442-3 PIR sensor analog output
there are a few others,but thses are the ones mainly used a lot
there some 3 pin analog used in some toys,like R2-D2 INTERACTIVE ROBOT uses and maybe the same one used in MINI PIR detector with digital output
one posted by KKEAST looks like ELTEC 442-3 PIR,i have that one plus ELTEC 442-3 ,AND my favorate one TPA81
plus the one from R2-D2 that looks like the second link by Djandco,havent bought that one yet,but will get some .like the small size
i mostly work with every type of sensor and buy different ones to test them out,they have good points and bad points
for toy robots we hack ,think best is small size,low current .low cost
when i try to add sensors to my robots i make,i make the hole as small as i can or hide it