Hello, I am attempting to toggle on/off individual LEDs (about a hundred of them) with the U3-LV and I wanted to know what the best approach is, hardware-wise. I currently have my script in matlab toggling a single LED using the DAC0 output, but if I needed to address several different LEDs individually, how can I accomplish this since there are only 2 analog outputs?
.png%3Fitok=PHGBxf6M "EEV Blog Reviews LabJack T7-Pro & Software Tools")
.jpg%3Fitok=B1YcuDFK)
.png%3Fitok=Ybt-OlgU "LabJack + JEDI One Can Create a Powerful Distributed DAQ Ecosystem")
The U3-LV has 20 digital IO. You may be able to multiplex them 10 x 10, but that will have a low on duty cycle and we have to be careful about how much power we are pulling. Here is a detailed explanation: https://appelsiini.net/2011/how-does-led-matrix-work/
Another option is to use SPI IO expanders like this one: http://www.microchip.com/wwwproducts/en/mcp23017