Matter-compatible CCT LED dimmer
a project by michals
Updated 1 day ago. No love. 1 follower.

Description

matter logo is a new standard for IoT automation. Unlike previous standards it does not require a special radio protocol but can work over plain WiFi.

While some devices and controllers exist there are very few LED light controllers, and all of the ones I could find are RGB.

Espressif provides a Matter SDK customized for ESP32 and examples of LED controllers, although without sufficient power to drive a LED strip.

On the other hand, examples of driving a LED strip with Arduino are abundant.

Some copypasta in KiCAD should make it possible to get an ESP32 board that can drive a LED strip with enough GPIO to mount physical switch controls.

Goals

Find a generic ESP32 board schematic that can be adapted

Select additio)nal parts and expand the schematic

Get schematic and BOM that can be used to have a PCB produced by a PCB manufacturing service

Resources

wikipedia

official site

Matter SDK for ESP32

Some tutorial for ESP32 Matter SDK

Another tutorial for ESP32 Matter SDK

Arduino PWM tutorial

ESP32 PWM tutorial

Another ESP32 PWM tutorial

High voltage PWM with Arduino pMOSFET

High voltage PWM with ESP32 nMOSFET

All MOSFET type switching schematics

Another site with transistor switch circuits with MOSFET gate resistor example

Some tutorial on making ESP32 carrier boards

Another reference board design

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Activity

  • 2 days ago: michals started this project.
  • 2 days ago: michals originated this project.


    • Comments

    • michals
      1 day ago by michals | Reply

      random mosfet SSM3K324R

      random voltage regulator UA78M33CDCYR

      standard looking terminals like TE 282836-2 282836-6 are cool but there are also surface mount terminals like 1-2383942-0

    • michals
      about 22 hours ago by michals | Reply

      random bypass diode WND08P16DJ, random eFUSE LS2406ERQ23

      Some protection ICs provide reverse voltage protection but require external MOSFET for that anyway. Using a separate diode is simpler.

      There is the problem that typical power protection ICs have voltage rating up to 60~80V but with LED controller it is not hard to imagine it could be connected to mains giving 240V. Also the eFUSE specifically is not intended to work independently, and has an EN pin that needs to be pulled high to enable the eFUSE.

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