ESP32 WLED Sound Reactive Box

I've seen quite a few ESP32 boxes out there, and even some that can accommodate a speaker for running WLED SR (Sound Reactive), but i wanted a box with a little bit more room.

I made this container/enclosure for those that want a little bit more room for using breadboard jumpers instead of soldering your pins and just extra space for longer wires etc.

It is 58.5mm wide x 83mm long and 52mm tall (54.5mm with lid), The 4 standoffs for mounting your ESP-32 board are 35mm tall (1 ⅜ inches) giving you plenty of room for your breadboard jumpers, on top of the standoffs are pins that align and allow your ESP32 to “snap” into place. I adjusted this until it was easy to set the chip in, while still doing a good job of holding the dev board in place.

On one of the sides, i made a little cradle to fit a HiLetgo Microphone Amplifier MAX4466 Module, once again 2 small pins to line up and securely hold the breakout board in place. It is positioned so that if you solder the 3 header pins, those stick into the case below the ESP32 pins allowing for breadboard jumpers once again.

There is extra space at the end of your ESP32 so that you can wire in a Level Shifter and keep it tucked away in this enclosure, or just utilize longer wires so it is easier to pull the board out and make changes/test things etc.

The lid has the negative space of the inside of the enclosure protruding down to line up and securely hold the lid in place. The clearances are ~.5mm so, at least with my resin printer, it makes a nice snap sound when i put the lid on. Also there are places for 4 screws on the corners for M3 screws. The lid hole has a diameter of 3.125mm so the m3 can slide through it, and the enclosure has holes of 2.85mm, so you can thread the screws in place. You can use the self tapping or “normal” screws (as seen in image above) These are both M3 screws at 6mm in length which is probably the shortest you would want to go with, but if you find yourself taking the lid/screws on and off frequently, the holes on the enclosure run the entire height of it, so you can just grab the next size larger screw if you get to that point.

There is a hole for screwing the enclosure into another surface in the middle on the bottom.

Parts:

I made this case using these exact parts:

ESP32 - https://www.amazon.com/dp/B09GK74F7N

Mic - https://www.amazon.com/dp/B07DRGF8C2

-