AnWa, How many microcontrollers do you plan to have flashing the LEDs and what will be the longest distance between any two of these microcontollers?I need a lot of micro controllers to control LEDs
In your application SerialPower I (two bytes / 16 bits for data) would be perfect, and a 3-wire interface (2 lines for power - as many leds apparently are involved, plus 1 line for serial communications). The 16 bits in the two bytes would provide ample room to identify each led and the action associated with it, and you could use the CalledID byte as well to identify (a group of) leds for even more resolution options. I would suggest to have a look (and test for your self) the examples on the website. I am most willing to help if needed.Well, I'm planning a thing where I need a lot of micro controllers to control LEDs, with a PC delivering updates to the micro controllers. Each controller would receive a message, and change its outputs according to a built-in table. The LED would be lit, softly-flashing or off. (If it wasn't for the flashing, I would just have used shift registers.)
There's not a lot of room and the budget doesn't allow for specialized off the shelf-hardware, so I will have to build it.