WLED RGB LED Driver

intro

In this project iam going to build an RGB PWM LED Driver for WLED. you drive 12v RGB LED strips wirelessly with this project. this project is WLED compatible which makes controlling the much easier. you drive up to 100w RGB LED strips with it. WLED is Running on XIAO ESP32C3 and LED drive using the IRLFZ44N logic level MOSFET. So let's get to build

Parts

• Seeed Studio XIAO ESP32C3
• 3*IRLFZ44N mosfet
• AMS1117
• 2*10uf tantalum Capacitors 16 V 1206
• 3*10k 0805 Resistor
• 4*KF301-5.0-2P
• 2.4G Antenna
• 2*M2-5MM screw

Step 1 Designing the PCB

The PCB designing process was straightforward, thanks to Flux.ai. This browser-based PCB design tool leverages AI to assist with hardware design. Once I finished designing the PCB, I exported the Gerber file for manufacturing. I used the seeedstudio fusion service to manufacture this PCB. All the steps I took for the PCB design is available in the video

link to the SeeedStudio fusion service: https://www.seeedstudio.com/fusion_pcb.html

link to the Flux.ai project:

https://www.flux.ai/seeedstudio/wled-rgb-led-driverp

Step 2 3d printing enclosure

I used Fusion 360 to design the enclosure, then exported bodies to STL files and 3D printed it

Step 3 Installing WLED

To do this, go to the WLED installation page on GitHub; you can find the link in my description. Connect your XIAO ESP32-C3 to your computer, select "ESP32-C3" as the board type, click "Install, " and choose your XIAO from the port options. After installing, enter your Wi-Fi password and SSID, and click "OK."

My previous blog will help you install WLED https://www.instructables.com/WLED-ON-XIAO-ESP32/

LED configs to set :

LED type : RGB PWM

RED GPIO:20

GREEN GPIO:8

BLUE GPIO:9

Step 4 PCB assembly

I used hand soldering to attach all the components to the PCB. First, I melted some solder on one pad of the PCB and placed the Xiao microcontroller on it while keeping the heat applied to the pad. After that, I connected the remaining pins. I employed the same method for all the SMD parts. Additionally, I bent the MOSFET about 90 degrees and soldered it in place.

Step 5 Enclosure assembly

The first step is to install the antenna connecter to the hole

Then connect this cable to the the XIAO antenna port

Put the top and bottom enclosure and fasten it with M2 5mm screws

So we are done with our build

Step 6 Testing

Users can connect the wires to the device according to the labels on the PCB

I connected my 12 RGB LED stripes with a 12 v source into it. the LED strip has common positive terrain

I used the WLED app to control the driver. This app is available on the App Store

Now we can play around with the app. Try different colours in it

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Blog link : https://www.seeedstudio.com/blog/2024/12/11/how-to-realize-quick-prototype-with-flux-ai-online-design-and-seeed%ef%bc%9f/