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Dear GadgetReboot,

I am a new user in the ARDUINO topic.
I have done the whole project (below) and it works fine:
Arduino/Uno/DMX_Serial_Tx_Rx/WS2812B_60_Test/DMX_WS2812_Fixture_Demo.ino

This is the project that I have searched for.
WS2812B ledstrip controled with an arduino nano 328p over the DMX protocol.
But I have a little problem with master brightness of the ledstrip.
When I send a 255 (max.) DMX signal (from PC QLC+) to each RGB pixel then the WS2812B ledstrip doesn't work with maximum brightness.

I have compared the currents:

• about 10mA/pixel << with DMX_WS2812_Fixture_Demo.ino
• about 34mA/pixel << with FASTLED library / RGBCalibrate.ino

Could you help me with this topic?
Where do I have to modify the sketch in order to have maximum brightness of the ledsstrip?

Thank you very much for your answer
Csaba

Thanks so much for your tutorials.

Let's say I want to run 10 strips, 300 LEDs each, so 3000 LEDs.

• Do I still use a 1000uf capacitor?
• Do I still use a 220R resistor?
• It's it correct to put one power supply per strip in parallel?

                                        
[USB-POWER]->[MicroController]--->[200R]-->+
                                           |
  +<---------------------------------------+
  |
  +-->Din+--------+--->Din+--------+--->Din+--------+--->Din+--------+--->Din+--------+
   +->+5V|300 LEDS|-+->+5V|300 LEDS|-+->+5V|300 LEDS|-+->+5V|300 LEDS|-+->+5V|300 LEDS|
   |  GND+--------+-|->GND+--------+-|->GND+--------+-|->GND+--------+-|->GND+--------+
   |    ^           |    ^           |    ^           |    ^           |    ^
   |    |           |    |           |    |           |    |           |    |           
   +1kuf+           +1kuf+           +1kuf+           +1kuf+           +1kuf+           
   |    |           |    |           |    |           |    |           |    |           
   |  +GND-------+  |  +GND-------+  |  +GND-------+  |  +GND-------+  |  +GND-------+  
   +5v| 5V power |  +5v| 5V power |  +5v| 5V power |  +5v| 5V power |  +5v| 5V power |  
      +----------+     +----------+     +----------+     +----------+     +----------+  

All the strips are connected in parallel and there's a separate 5V power supply per strip.

Does it matter what the power supply is? For example I tried powering 1 strip on a USB recharger battery. The battery is only rated 3A and a single strip can apparently use 18A but it ran for 15hrs and was bright enough with at least 1/3 of the LEDs on at all times.

I am sure this is a simple fix but not being a programmer - not so easy for me.

I am compiling the code, renamed it in the title and now getting missing terminating character on this line.
Any help is appreciated.

Thanks!