--- title: "LED Box WLED" subtitle: "Building a control box for WS2812Bs" date: 2024-10-02T00:00:00Z toc: false tags: - 2812b - led - cost effective - WLED - esp32 draft: true author: Andrew K author_email: leighhack@shamrock.org.uk listing_image: images/IMG_3606.jpg --- I wanted to build a control box for 2 LED strips of WS2812s. This is for a display in a bedroom, but I also wanted it to be controllable from mobile/desktop, along with multiple colours and brightness controls! # How to break it down into components First I needed to work out the different components I needed and how they would be put together, to make sure they fit in the location I wanted but also portable enough if I ever wanted to take them away. - ESP32 - Simple and effectively using [WLED](https://kno.wled.ge/) - Two LED strips to be used - Two LED diffusers. They are aluminium with a diffusing cover. They are readily available on Amazon/Ebay/Other locations. - An enclosure for the ESP32 and allow the LED strips to plug in - 2 x 3 Pin sockets and plugs - 1 x PSU socket for a 5v power supply - A PSU that can plug into the enclosure. # Components Enclosure {{< bgallery width="90" >}} {{< fimage src="images/blankenclosure.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}} # Male/Female 3 pin DIN connectors and 2.1mm PSU connector These were placed in the honeycomb to create a simpler picture {{< bgallery width="90" >}} {{< fimage src="images/IMG_3607.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}} The 3 pin connectors were chosen to connect the LEDs so each one had a +v, -v and data line. # ESP32 Terminal adaptor for the enclosure To keep things as simple as possible I used a ESP32 terminal adaptor and stuck this to the inside of the enclosure. {{< bgallery width="90" >}} {{< fimage src="images/IMG_3614.jpg" width="300" height="200" float="inline-block">}} {{< fimage src="images/IMG_3603.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}} # Drilled some holes for the connectors {{< bgallery width="90" >}} {{< fimage src="images/IMG_3580.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}} # Created a cable to plug into the enclosure and to WS2812B LED strip I got hold of 2 x 3 pin JST extension cable and by using one half created a cable to connect to the LED strip and enclosure {{< bgallery width="90" >}} {{< fimage src="images/IMG_3585.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}} Then attached to the LED strip {{< bgallery width="90" >}} {{< fimage src="images/IMG_3600.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}} To tidy things up I then used some heat shrink around the new cable. {{< bgallery width="90" >}} {{< fimage src="images/IMG_3601.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}} # Some soldering As the terminal adaptor could take two ESP32 sizes, and I had the smaller of the two, I can use breadboard cables to solder all the positions and then just plug into the terminals I needed. {{< bgallery width="90" >}} {{< fimage src="images/IMG_3581.jpg" width="300" height="200" float="inline-block">}} {{< fimage src="images/IMG_3604.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}} # Install WLED If you following the installation procedure found [here](https://kno.wled.ge/basics/install-binary/) it sets up all the elements you need and then you can configure to use the GPIO pins you need. # All set up and working You can use the WLED interface to change colours and enable patterns {{< bgallery width="90" >}} {{< fimage src="images/IMG_3605.jpg" width="300" height="200" float="inline-block">}} {{< fimage src="images/IMG_3606.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}} # Finally Installed and Working All installed for the location. The LEDs and diffuser has been cut to the correct length. {{< bgallery width="90" >}} {{< fimage src="images/IMG_3663.jpg" width="300" height="200" float="inline-block">}} {{< /bgallery >}}