June 11th : A Little Bit Of Colour
So I remember reading somewhere that we are meant to be including some of the TI lighting solutions in our projects. This sort of this is right down my alley, as it happened I had a bunch of RGB LEDs some of the TLC59025 Led sink driver ICs and a faulty LED driver PCB from my RGB cube that I could cut/hack to make into something new.
At the moment I still have no idea how I am going to include my colourful little addition into my project, but I am sure I will think of something.
I didn't feel like multiplexing with my array so I am using one output for each red, green and blue diode in my LEDs, so for the 3x9 array that is a total of 81 outputs to control each LED individually. The TLC59025 LED driver are really easy to drive, you clock the output data into the shift registers and then latch the output to move the data from the shift registers to the drive registers. You can chain these ICs up in a long cascade to drive as many LEDs as you wish, I am using three separate chains to drive the red, green, and blue channels. This way I can clock in the three data lines at the same time speeding up the process a bit.
Check out these pictures I prepared earlier to "hopefully" get an idea of how to drive these things.
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