I guess my question is how do I connect it all to the raspi? Do I use a solid state relay? I mean there are only so many pins on the Raspi and due to distances it might be impractical for me to connect all the leds and led strips in a circuit (ie. Raspi out to kitchen led, out to bathroom led, out to living room led1 to living room led2...all the way to the last hallway led.texy wrote:Just make sure you have adequate power to cover them - obviously not directly from the Pi
Well not all of them will do the same thing. I want to be able to dim the Kitchen when watching TV (btw can the raspi dim LEDs?) but still have boblights behind the TV(s) and match the infinity mirrors to the TV. Alternatively, during a party I might want the TV to display visualizations/photos with boblights corresponding to those visualizations, and have the rest of the LEDs synchronized to some music. I will deal with the synchronization, but I need to know where to start researching the hardware side.karlkiste wrote:If all the LEDs should do the same, you don't need a GPIO pin for each strip. You can just use buffers, which send the same signal from one GPIO pin to all the strips.
I'm currently working on a project where one pi will control about 3500 LEDs, each individually, through one pin But that's another type of use.
You can dim with the WS801 by varying the PWM. (Pulse Width Modulation or vary the ON vs OFF time).pukster wrote:I didn't actually buy it as it got negative reviews about the smell. The problem with the WS2801 is that they don't dim. How do I manually dim LEDs?
I would never dim LEDs by decreasing the voltage accross them or by increasing the resistor.klricks wrote:The only other ways to dim LED's is to drop the voltage or increase the dropping resistor(s).