PIR sensor is used for making motion detecting applications such as alarm burglar systems, visitor presence monitoring, light switches and robots. The Grove – mini PIR motion sensor is a compact, low power consumption and cost effective PIR sensor which is suitable for applications with relatively less detection distance requirement.
The detection distance in the datasheet is up to 3m to 5m, however 2m is the best detection distance that we recommend and 25℃ is the most suitable temperature.
The sensitivity of the sensor is adjustable, there is reserved pin out on the back of the board so that you can solder a slide rheostat to adjust the sensitivity. If you think the sensitivity is not enough, here is a trick, drag the plastic cap a little up will help enhance the sensitivity.
Please note that the orientation can influence the sensitivity, for more accurate detection, please place the sensor as the picture below.
Low power consumption
|Dimensions||20mm x20mm x12mm|
|Supply Voltage||3.3 – 5V|
|Working Current||12 – 20 μA|
|Sensitivity||120 – 530 μV|
|Max detecting range||2m(25℃)|
|Grove - mini PIR motion sensor||1|
Question by: admin on 2018-12-18 02:29:36
Unfortunately, the max Supply Voltage is 3.3V. RegardsAnswer by: admin on 2018-12-18 02:29:36
Why is the supply voltage rated 2.7-3.3V when you have a voltage regulator with maximum voltage 6.0V and dropout 0.25V? I think the correct supply voltage should be +3.25 to +6.00 Volt?Question by: admin on 2018-12-18 02:24:24
Hi, there~The manual is written like this. if any question, you can go to Seeed's forum to find the anwser, Regards!Answer by: admin on 2018-12-18 02:24:24
Question by: admin on 2018-12-18 02:21:01
Thanks!Answer by: admin on 2018-12-18 02:21:01