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PIR motion detector DIY kit
with relay control & internal timer + 9v AC adapter
This listing is for a PIR based motion detector DIY electronics kit that can be used to turn on AC devices via an on board relay when motion is detected. PIR (Passive Infrared) sensors pick up on infrared signatures coming off of the human body. The above video offers a full demonstration of how this device works when assembled, and the video below offers step by step assembly instructions. It comes with a DIY control board kit, a PIR motion detector module, a three-wire harness that is used to interface between the control board and the PIR module, and lastly a 9v AC adapter so that you can plug your finished module safely into the wall. We also sell these in fully assembled form for a few dollars more, so check out our store.
To operate, simply point the PIR module (After assembly) in the general area of interest, and plug in the included 9v 1A AC adapter. The control board will do the rest. There may be an initial false trigger when first powered on. After you leave the room, it would turn off with no issue, as long as the PIR module has been calibrated. The relay pins are connected to a 3-pin terminal block, and the pins are talked about below. There are four mounting holes so that you can easily mount it to a project box or wall. Please use the video above as a user manual and the video below as an assembly/test manual. The shipping cost of $7.80 will get you air shipping (Small Packet Air) from Ontario Canada via Canada post).
Internal Timer:
When the PIR module detects a human presence, it will turn the relay on, and it will start a countdown sequence of 1 minute and 20 seconds. This timer will reset every time the motion detector senses a human presence. meaning that if you are working in front of the device, the relay will never turn off. If you leave the room, and the PIR sensor does not detect you any more, the relay will turn off roughly one minute and twenty seconds after it lasts detects movement. It is good for power saving applications. You can hook this up to a lamp or your fluorescent lighting. This is talked about more in the above video. If you have any questions, feel free to ask!
These pins are labelled:
NC - Normally Connected to the Common Pin
CO - Common Pin (Connected to the NC pin when the relay is off / Connected to the NO pin when the relay has been activated)
NO - Normally Open. This pin is not connected to the Common Pin until the relay is activated.
Assembly and PIR Calibration Video
(Skip to 9:20 for PIR calibration / cable interface instructions):
To operate, simply point the PIR module (After assembly) in the general area of interest, and plug in the included 9v 1A AC adapter. The control board will do the rest. There may be an initial false trigger when first powered on. After you leave the room, it would turn off with no issue, as long as the PIR module has been calibrated. The relay pins are connected to a 3-pin terminal block, and the pins are talked about below. There are four mounting holes so that you can easily mount it to a project box or wall. Please use the video above as a user manual and the video below as an assembly/test manual. The shipping cost of $7.80 will get you air shipping (Small Packet Air) from Ontario Canada via Canada post).
Internal Timer:
When the PIR module detects a human presence, it will turn the relay on, and it will start a countdown sequence of 1 minute and 20 seconds. This timer will reset every time the motion detector senses a human presence. meaning that if you are working in front of the device, the relay will never turn off. If you leave the room, and the PIR sensor does not detect you any more, the relay will turn off roughly one minute and twenty seconds after it lasts detects movement. It is good for power saving applications. You can hook this up to a lamp or your fluorescent lighting. This is talked about more in the above video. If you have any questions, feel free to ask!
These pins are labelled:
NC - Normally Connected to the Common Pin
CO - Common Pin (Connected to the NC pin when the relay is off / Connected to the NO pin when the relay has been activated)
NO - Normally Open. This pin is not connected to the Common Pin until the relay is activated.
Assembly and PIR Calibration Video
(Skip to 9:20 for PIR calibration / cable interface instructions):