Interface PIR Motion Sensor and USB Camera with LabVIEW.

Objective:

Interface PIR Motion Sensor and USB camera with LabVIEW.

• By using motion sensor activate a hardware LED as well as a software LED to ON and OFF the LEDs when there is no motion.
• Acquire the image by an USB camera by a front panel button and save the clicked images inside a folder with random names.
• Then design the VI that will click the image when a motion is detected.
• Design the front panel as shown in the fig.

Apparatus Required:

• USB Camera
• NI USB 6008
• Breadboard
• PIR Motion Sensor
• Jumper wires

Procedure:

• Connect the +5V and Gnd pin of the PIR sensor to the corresponding pin of the DAQ.
• Connect the Dout pin of the PIR sensor to any analog input port of the DAQ.
• connect the USB cable of the DAQ to the PC.
• open the LabVIEW, right click over the block diagram and take the DAQ Asst from express vi function. 
• Configure the DAQ Asst to acquire analog voltage of range 0-5V in RSE mode with sample on demand.
• Then acquire the signal and glow the front panel LED when a motion is detected.
• Now connect an USB camera to the PC.
• Right click over the block diagram of the LabVIEW and go to "vision and motion" function palate and use the functions under NI IMAQdx . 
• The sequence of functions to capture image will be open camera ------ > configure ----> start ------- > snap ------ >Stop ------ > unconfigure ------> close.
• Many functions you can find inside  NI IMAQdx Low-Level.
• Inside vision utilities----> Image Management--->IMAQ Create. Connect the out put of IMAQ Create to the image in pin of IMAQdx snap.
• To save the image use IMAQ write file function. get it from vision utilities ------ > files.
• Use a front panel button to take image first. 
• Then replace the button by the signal acquired when a motion is detected.