This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the 'alarm' pin will go low.
The older versions have a brown wire instead of the new white wire. In the old version: Red wire is power (5 to 12V). Brown wire is GND. Black wire is open collector Alarm.
The new version wires: Red wire is power, White wire is GND and the Black wire is open collector alarm.
This unit works from 5 to 12V (for best results use 6.7 to 12V as the PIR can be unstable below 6.7V). You can also install a jumper wire past the 5V regulator on board to make this unit work at 3.3V. Sensor uses 1.6mA@3.3V.
The alarm pin is an open collector meaning you will need a pull up resistor on the alarm pin. The open drain setup allows multiple motion sensors to be connected on a single input pin. If any of the motion sensors go off, the input pin will be pulled low.
Weve finally updated the connector! Gone is the old odd connector, now you will find a common 3-pin JST! This makes the PIR Sensor much more accessible for whatever your project may need.
The PIR Module can be connected with the jumper wires we stock either male to male or male to female.https://www.kitronik.co.uk/4130-jumper-wires-premium-mm-pack-of-10.html https://www.kitronik.co.uk/4129-jumper-wires-premium-mf-pack-of-10.htmlPosted byon Thursday, 26 November 2015
0voteA: I?ve added another image, just under the main product image that shows how to do this. You need a pull up resistor and watch out as the colours of the wires are not quite as you would expect in that the black wire isn?t zero volts.Posted byon Thursday, 1 November 2012
Hi Avishka, The PIR sensor can run on a voltage between 5V-12V, for best results use a voltage above 6.7V. As such you wouldn’t need a voltage regulator unless you were using a voltage supply higher than 12V.Posted byon Tuesday, 28 March 2017
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