Zitat
But what's the proper way to increase uart on raspbian jessie? I read several, with one warning about voltage.
I believe simply changing the "serialRate" in the sketch well have the desired affect.
// Baudrate, higher rate allows faster refresh rate and more LEDs
//#define serialRate 460800 // use 115200 for ftdi based boards
#define serialRate 115200 // use 115200 for ftdi based boards
//#define serialRate 500000 // use 115200 for ftdi based boards
Zitat
But THIS app let's me know if I'm connected or not, while the official app doesn't!
sure it does, If my hyperion is not running or not running correctly the app tells me it can't connect..?
Zitat
I don't understand because it seems to cause random data being sent to MY leds.
can be caused by loose connections or very log data wires picking up interference. Or missing a common ground connection are the most common causes.
Zitat
And should I use adalight, or ws281x-SPI for my ws2813 as suggested elsewhere on this forum?
I have never used a ws2813 strip of led's. However from what I have read the ws2813's use exatly the same as ws2812's. So use adalight if connecting the leds to an Arduino. Or ws281x-SPI if connecting the led's to the gpio pins of the RPi directly with out an Arduino.
The only difference between the two led strips is the ws2813 has built in fallover support for bad led's (if a led go's bad on a ws2812 strip every led after that led well fail. Not so on ws2813 strips.
Zitat
And how do I figure out what port I should use? Not ttyUSB0, but what then?
one way of doing this is: On the Rpi, from a console type: " dmesg | grep usb " once without the Arduino plugged in to the usb port. Then once more after plunging in the Arduino. That should show you info on how the Arduino is seen by the Rpi.
Zitat
And a question: how does the arduino "know" what sketch to use? I uploaded a couple of sketches to the arduino. Or should the .ino file have the name of the 'type'?
The last sketch uploaded with the Arduino IDE software is the active sketch.
Hope it's helpful.