helps to control a CCD camera with interface

[angoav98]

I Explain better.

I am work with a CCD camera of edmund optics. 

I already  made the concerning to vision with Labview Vision. I find very post in this forum concerning to USB camera, and  thanks to this i could  visualize the camera, and all works perfect.

however I need to activate the camera with extarnal signal  comig of a microcontroller. I used VISA labview for to make a serial comunication, now i have the signal for to activate the camera in labview thaks to serial comunication with microcontroller.But, i don`t know  how could to activate the capture of images with this signal   ( coming of microcontroller)

someone has controlled the capture of images of USB camera with external signal or something???

 Thanks.

[Tushar_Jambhekar]

I didnt got your question properly.

does your USB camera has digital trigger input?

what is your problem?

1. you can not provide trigger to the USB camera

or

2. You can give trigger but can not acquire image once trigger has been given.

[angoav98]

I need take a picture every time the signal coming of microcontroller is "1".The camera haven't in it's hardware a button for take a image, All is inside of PC. With labview I see the camera in real time and to take image but from vision mode, and i need take image with enable signal that coming of microcontroller.

[Tushar_Jambhekar]

what you can do is as follows

Write code for getting trigger from microcontroller

when trigger arrives (you can contineously poll, when you get trigger) capture the image from camera using IMAQ snap.vi

However this software based processing will not give you the image of the exact moment when trigger arrived. there might be delay of several miliseconds.

[angoav98]

Hi,.. I don't understan how IMAQ snap can help me. I have a signal from microcontroller and I read this signal with labview VISAREAD. I send from microcontroller string. When I need the camera take a image, i send the letter D, and when i don't need take a image send the letter E from microcontroller.

My question is how with IMAQ snap I can take a image with the above conditions

[Tushar_Jambhekar]

something like this