Hi, till now I tried a lot of different wirings to control a LED Strip (one color at the moment) with a MOSFET connected to an Arduino. Used components: Arduino Nano 328P on Pin 3 LED Strip with 12+ common anode 12 V DC for the LED Strip MOSFET IRFZ44N / IRLZ44N I tested my code with a single L…

You need to connect a ground wire back to the Arduino. So run a wire from the ground rail of the breadboard to a GND pin of the Arduino.

Just finished my board and the code is working too. Some update: First: I added 2 more Mosfets in the same way to control a RGB Strip. It is working as expected, but the voltage regulator on the Arduino is getting hot. I put 12 V+ to the Arduino VIN. The Data sheet tells it is possible, but I th…

Yes, diagram is correct. Is this a Nano, as on the Fritzing. Nanos don't have a lot of heatsink area for the regulator. Burning off 7volt (12 - 5) could make the regulator slightly warm from the current draw of the Arduino itself. If you connect extra devices to the 5volt pin (sensors etc.), you…

I have a similar setup, 3 Mosfets on a Nano for a 12V strip. While it worked with feeding 12V into the Nano, I decided to use a separate buck converter module to bring 12V down to 5V and stick that into the 5V of the Nano. Everything is happier.

ok - I will buy a buck converter too. Think this is the more efficient way to step down the voltage instead of heating the air :wink: Thank you guys for the help

sorry for bringing this up again but why are mofsets used on led? do they make any improvements? or what do they exaclty do?mofsets really neccesary for the leds? i saw a ton of tutorials... some of these guys not even using resistors or capaciators... almost nobody uses mofsets.. maybe im not gett…

You do not need FETs for a single LED as that can be driven by a single pin without exceeding the current rating of the pin. People not using something to limit the current through an LED like a resistor, who then display their ignorance as facts, are fools. Once you have a strip of LEDs they draw…

LED Strip / MOSFET / Arduino - best way to do

Other Hardware LEDs and Multiplexing

Wawa November 10, 2016, 6:58am 3

^ That, and...

Remove that 220ohm resistor, and use it between Arduino output pin and mosfet gate.
And add a 10k resistor between Arduino pin and Arduino ground.
Leo..

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LED Strip / MOSFET / Arduino - best way to do

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