Hello,
I bought 12V WS2811 LED Dots, So it has 3 connections: GND, 12V and DIN.
12V goes to the powersupply 12V+
GND goes to GND of arduino and 0V of powersupply
DIN goes to pin 5 of arduino (pwm compatible)
The LED's are not really reacting to the signal coming from arduino pin5, i added a normal LED and resistor to see if someting is happening on pin5, ... it is.
seems i have to make from 5V control signal a 12V control signal. I have a bunch of NPN transistors, but not a PNP one... anyone a suggestion ?
greetings
Jasuper