Connecting 12V WS2815 LEDs to Arduino Nano: Do I Need Any Precautions to Ensure Safe Operation?
Hi everyone, I am building a light cube using WS2815 individually addressable LEDs, which are powered at 12V. There are almost 700 LEDs in total but only max 50 will light up simultaneously. Using an Arduino Nano to drive the strips, with wiring diagram as shown here.
As shown in the diagram, I am using a power supply that gives both 5V and 12V. I am connecting the GND of the B channels on the LED strips to GND. I think I should also connect the GND from the 5V and 12V power supplies to make sure they have the same reference voltage.
My question: do I need to add any precautions anywhere to avoid my Arduino from getting fried or the LED strips from working as intended ?
As shown in the diagram, I am using a power supply that gives both 5V and 12V. I am connecting the GND of the B channels on the LED strips to GND. I think I should also connect the GND from the 5V and 12V power supplies to make sure they have the same reference voltage.
My question: do I need to add any precautions anywhere to avoid my Arduino from getting fried or the LED strips from working as intended ?
Solution
I suggest based on the diagram that you can add a current limiting resistor to reduce the amount of current going to the nano chip so it won't be very much.
Then try to calculate the total power that is required to turn on all the led. It seems the total current needed is insufficient to power the 70 led. I suggest you increase the current of the D-60A power supply little bit further.
Then try to calculate the total power that is required to turn on all the led. It seems the total current needed is insufficient to power the 70 led. I suggest you increase the current of the D-60A power supply little bit further.
