Last year we used a string of blue LED’s on our robot to indicate robot status to our drivers. This year we want to use RGB LED’s to indicate more events. The plan is to use a rioduino over the I2C bus (Either onboard, or through MXP slot), to control a strand of LEDs. I have seen the labview example, and the touchscreen example, but we program in JAVA. Also, I’m trying to simplify the code by only sending a single character per status to the Rioduino. I would have a case switch in the Rioduino C# code with the different LED patterns. The sticking point seems to be in the JAVA code for sending characters. I just can’t figure out I2C api notes. I can post both my arduino and java code if people are interested. Any notes, hints, example code or tutorials are appreciated.