# Seeed studio PIR sensor adjustments

**URL:** <https://forum.core-electronics.com.au/t/seeed-studio-pir-sensor-adjustments/20895>\
**Category:** Seeed Studio\
**Created:** [23 September 2024 04:08 UTC](https://forum.core-electronics.com.au/t/seeed-studio-pir-sensor-adjustments/20895 "2024-09-23T04:08:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Prithul271176](https://avatars.discourse-cdn.com/v4/letter/p/ecd19e/32.png) [@Prithul271176](https://forum.core-electronics.com.au/u/Prithul271176)\
**Post date:** [23 September 2024 04:08 UTC](https://forum.core-electronics.com.au/t/seeed-studio-pir-sensor-adjustments/20895/1 "2024-09-23T04:08:13Z")

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Hi,

I just got myself this [PIR sensor](https://core-electronics.com.au/pir-motion-sensor-large-lens-version-seeed-studio.html); just noticed it does not have adjustable potentiometers for distance and delay. Can someone please help me understand how I may tweak these settings?

Regards,  
PC

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**Author:** ![Samuel](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/samuel/32/11763_2.png) [@Samuel](https://forum.core-electronics.com.au/u/Samuel)\
**Post date:** [24 September 2024 02:55 UTC](https://forum.core-electronics.com.au/t/seeed-studio-pir-sensor-adjustments/20895/2 "2024-09-24T02:55:20Z")

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Hi @Prithul271176,

This PIR sensor is designed to output a HIGH/LOW signal to indicate movement in its detection range. It doesn’t have a recommended software option to change distance and delay however the board does look like it is possible to solder on your own potentiometers to change these values.

![image](https://canada1.discourse-cdn.com/flex028/uploads/core_electronics/original/2X/2/220c3b3b109481993c24dda56d30c2ea2fb48383.jpeg)

You can check out [the Wiki for that product here](https://wiki.seeedstudio.com/PIR_Motion_Sensor_Large_Lens_version/) which includes a circuit diagram however it’s worth noting that no official advice is given for controlling these settings.

Hope this helps!

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<div class="post-metadata">

**Author:** ![lia262073](https://avatars.discourse-cdn.com/v4/letter/l/94ad74/32.png) [@lia262073](https://forum.core-electronics.com.au/u/lia262073)\
**Post date:** [26 September 2024 05:21 UTC](https://forum.core-electronics.com.au/t/seeed-studio-pir-sensor-adjustments/20895/3 "2024-09-26T05:21:21Z")

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If you are looking for a PIR sensor with a distance and delay adjustment facility, you can choose HC-SR501.

> **[31227sc.pdf](https://www.mpja.com/download/31227sc.pdf)**
>
> 854.17 KB

This PIR motion sensor is widely used in many motion sensing projects like this:

> **[PIR Motion Activated Relay - Share Project - PCBWay](https://www.pcbway.com/project/shareproject/PIR_Motion_Activated_Relay_cdf8be7e.html)**
>
> A PIR motion sensor module is used with this PCB to turn on a relay when motion is detected and the ambient light is not very bright.One use for this is to control a light to automatically turn on whe...