RE: Grove - PIR Motion Sensor

Products & Technology Grove
#1

Hi,

May I check are there any updates with regards to Measuring Range and the default detecting distance of Grove - PIR Motion Sensor?

Could you please elaborate how the Measuring Range and the default detecting distance of Grove - PIR Motion Sensor is calculated and intended to work in detail?

Please provide a diagram to explain the default detecting distance is 3m…is its line of sight vertical or horizontal distance from the placement of Grove - PIR Motion Sensor?

Looking forward to your reply.

Thank you.

Best Regards,
[cid:[email protected]]

Niyas Farvin D/O Jamal Mohamed (Ms) | Applications Developer
Centre for Innovation in Learning | National Institute of Education | NIE2-03-30/14, 1 Nanyang Walk, Singapore 637616
Tel: (65) 6790-3291 GMT+8h | Email: [email protected]mailto:[email protected] | Web: www.nie.edu.sghttp://www.nie.edu.sg/>

From: Niyas Farvin DO JAMAL MOHAMED (IN-Learning)
Sent: Monday, 13 May, 2019 5:12 PM
To: ‘[email protected]’ [email protected]
Subject: Grove - PIR Motion Sensor
Importance: High

Hi,

I am using Grove - PIR Motion Sensor to develop motion tracking prototype.
It specified that the Measuring Range of Grove - PIR Motion Sensor is 0.1m to 6m and the default detecting distance is 3m.

[cid:[email protected]]
Grove - PIR Motion Sensor: http://wiki.seeedstudio.com/Grove-PIR_Motion_Sensor/

Could you please elaborate how the Measuring Range and the default detecting distance of Grove - PIR Motion Sensor is calculated and intended to work in detail?

Please provide a diagram to explain the default detecting distance is 3m…is its line of sight vertical or horizontal distance from the placement of Grove - PIR Motion Sensor?

Thank you.

Best Regards,
[cid:[email protected]]

Niyas Farvin D/O Jamal Mohamed (Ms) | Applications Developer
Centre for Innovation in Learning | National Institute of Education | NIE2-03-30/14, 1 Nanyang Walk, Singapore 637616
Tel: (65) 6790-3291 GMT+8h | Email: [email protected]mailto:[email protected] | Web: www.nie.edu.sghttp://www.nie.edu.sg/>

National Institute of Education (Singapore) http://www.nie.edu.sg

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#2

Hi there,


For the default, it means that you receive the board and without any rework. the detect range is 3m. R13 is 2Mohm.

For the max 6 meters, you can rework the board and add the R2 (10Mohm)adjustable resistor. The detecting distance can be adjusted from 6 meters to only several centimeters. You have to remove R13 if you add the R2.


Thanks

best rgds
Bill
#3

Hi,

Please provide a diagram to explain the default detecting distance is 3m…is its line of sight vertical or horizontal distance from the placement of Grove - PIR Motion Sensor?

Thank you.

Best Regards,
[cid:[email protected]]

Niyas Farvin D/O Jamal Mohamed (Ms) | Applications Developer
Centre for Innovation in Learning | National Institute of Education | NIE2-03-30/14, 1 Nanyang Walk, Singapore 637616
Tel: (65) 6790-3291 GMT+8h | Email: [email protected]mailto:[email protected] | Web: www.nie.edu.sghttp://www.nie.edu.sg/>

#4

Hi there,


The 3M is the experiment data. There is no calculation. It depends on the resistant R2(Between 2IN- and 2OUT pins of the TM2292). For the schematic, you can refer to attachment. For the TM2292 datasheet, we only have the Chinese version. Please see the attachment as well.

Thanks

best rgds
Bill