Making LED strip dimmable with Apple Homekit

Other Hardware LEDs and Multiplexing
1

Hello, I have a LED that I can manage with Apple Homekit using Nodemcu. This LED is too bright for me. I looked around a bit but couldn't find much of a source. I want to make this LED dimmable using Apple Homekit. There are a few contents, but none of them are detailed. Can anyone help if they've done it before or have any ideas?

The parts I used are;

nodemcu esp8266
LED driver 12v 2a 25w
12v to 5v-3.3v power supply
3.5 meter led strip
Relay

2

There are TWO ways to dim a led. The first is to reduce the current going to the led. The second way is to rapidly turn the led on and off. By reducing the on time and increasing the off time, your eyes will perceive the led is dimmer.
Which way are interested in going?

3

Your "LED driver" may be dimmable with a PWM or a control voltage.

Do you have a link to the driver and the LED strip?

4

It seems more logical to me to reduce the current going to the LED. Which chipset can I do this with? Or if you have a suggestion, I'm all ears.

5

https://tr.aliexpress.com/item/1005003279313941.html?spm=a2g0o.productlist.main.1.712d3199WqO8Zx&algo_pvid=1f66b1c4-9412-491d-b38e-9dd500f9da87&aem_p4p_detail=202312181125463255340333521600003844462&algo_exp_id=1f66b1c4-9412-491d-b38e-9dd500f9da87-0&pdp_npi=4%40dis!NZD!38.69!12.11!!!23.59!!%402103297517029275463498156e1fc5!12000028181233141!sea!NZ!0!AB&curPageLogUid=TUJv0ufkRx3O&search_p4p_id=202312181125463255340333521600003844462_1

(i have 12v 320led 4000k)

I'm sorry the driver link is in Turkish. I couldn't find it in English.

6

OK, you'll need a MOSFET driver. It will "pass-through" PWM and it will dim just like a regular-little LED. (You can leave-out the diode since you have a non-inductive load.)

But, I don't know anything about interfacing with the HomeKit.

7

I saw such a video on YouTube. Which chipset should I use here?

8

The quickest test would be to wire an incandescent light bulb in series with the 12 volts going to the LEDs. Does that make the leds dimmer?

9

I'm sorry I can't do this

10

Does your country no longer have incandescent lights? Any bulb, even automotive will work as a resistor to test with.

11

Of course there is, but in the country I live in now it is night time and there is no light bulb in my house. I can buy it tomorrow.

12

I bought a light bulb, how do you want me to build the circuit?

13

Put it in series with the 12 volts going to the led strip. see if that resistance dims the LEDs.

14

I tried it and yes it started to burn quite dimly.

15

The guy in the video I mentioned above did it. The diagram is available below. Will this work for me? He used transistors there, but I didn't understand what he used them for. He used IRLZ44N. I have IRFZ44N. If this mosfet will work for me, how do you recommend I make the connection? Or what do you suggest I do?

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