we have the problem that we have only four analog output pins on our USB-6363-NI device for our project but need one more to control a LED lamp.
With the four analog output pins some neuronal recording devices are controlled. Now I need to activate a LED lamp (cool LED pE-100) with the NI device. This lamp needs TTL pulses to get turned on. When I plug the lamp to one of the analog output pins and send continuosly 5V through it, the camera turns on, as I want it to. When I send 0V through it, the lamp turns off. However, I can't control the camera like this because I need all four analog outputs to control my experiment. Thus, I need another way to turn on the camera with my NI device.
What I already tried:
Turning "on" or "off" is a "digital" thing, 0 or 1. The PXIe-6363 has, I believe, 48 Digital I/O lines. Figure how to make a simple circuit (it may take no more than a single resistor) to get a TTL line to turn an LED On or Off.
Does the lamp have a threshold to turn on? And how much current does the lamp require? I ask because it looks like the DIO will range from 2V to 5V depending on temperature and current draw.