But you should never turn off the power to a string of WS2812s when the data pin is connected up anyway or you will damage them.Also you have been told before that you have to use a series resistor in the data line and a large capacitor across the supply, these should be on the diagram, as well as the power and ground connections to the nano.Here is how to post an image image guide
I assume if I take power from the Arduino +5v and GND pins the risk to the LEDs is removed?
I'm a chemist by training and for me if someone gave me two five gram bags of something I'd assume that 5g = 5g. I naively thought it would be the same with volts.
If your bags are sized for 5g of Pb, surely you cannot fit 5g of feathers in it.
Have a look at thread herehttps://forum.arduino.cc/index.php?topic=524448.0Conveniently, it contains all of;1. a suggestion to use imagebin2. The reason I'm using imagebin3. Two requests for the details on power surge protection, specifically resistors and capacitors.
What makes you assume that? What risk are you trying to mitigate? How is the Arduino powered?
If you have wired it up like that it is a great way to damage your WS2812 LEDs. This is because the data signal from the Arduino will be much higher than the supply applied to the WS2812s
I refer you to the Adafruit guide for cap size, resistor size and wiring details.
Hi,Is there a graphics app on the smarty phone?Check what it can do..Tom...