I am planning to build a motion sensing led for stairs, the total length of ws2812b led is 10m and total led is 600 (60 leds per meter). I am planning to use a 5v 40a ac to dc supply for both leds and Arduino. My question is will the Arduino Uno handle that current or should I use some workarounds.

[image] billava07: will the Arduino Uno handle that current Basic electronics. Given a 5V supply the Uno will only use as much current as it requires. You could use a supply capable of supplying 1000A and that would still be the case

Max input current for Arduino Uno

Projects General Guidance

UKHeliBob August 25, 2021, 7:33am 4

Bear in mind that the LED strip must be powered from the power supply and not from the Uno 5V pin and that the Uno and the LED strip should have common GND connection

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Max input current for Arduino Uno

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