ESP 32 Glass Block Lamp

by yotitote in Workshop > 3D Printing

87 Views, 0 Favorites, 0 Comments

ESP 32 Glass Block Lamp

Photoroom_20250321_154708.JPEG

This is an ESP32-based lamp made from a glass block. The ESP32 model used is the ESP32-C3 SuperMini. The dimensions of the glass block are 90 mm × 80 mm × 190 mm.

Supplies

Here are the parts needed for the project:

  1. ESP32-C3 SuperMini
  2. 2× 70 mm programmable LED strips
  3. Wires
  4. PLA filament
  5. Glass block

3D Printing

obraz_2025-03-21_161255625.png
obraz_2025-03-21_161346843.png

Print both the top and bottom parts of the lamp. There are two types of diffusers:

Diffuser #1 should be printed in clear or white filament, depending on how much light you want to let through.

Diffuser #2 is designed to be used with tracing paper placed underneath it.

Both diffusers lock into thin ridges on the walls of the LED strip channels. The print settings don’t matter too much, but here’s what I used:

  1. 10% infill
  2. 0.4 mm nozzle
  3. 0.2 mm resolution
  4. PLA
  5. No supports
  6. Adhesion ON (to prevent warping)

Downloads

lamp_top.stl
lamp_base.stl
diffusor_2.stl
diffusor_1.stl

Electronics

IMG_5765.JPEG
IMG_5768.JPEG
IMG_5771.JPEG

The ESP32 needs to be connected to the LED strips. To achieve this, I used 30 AWG wire, cut into approximately 4 cm strips. The wiring is detailed below:

ESP32 to LED Strip #1:

5V → 5V

GND → GND

GPIO 4 → DIN

LED Strip #1 to LED Strip #2:

5V → 5V

GND → GND

DO → DIN

Assembly

Photoroom_20250321_154751.JPEG

Assemble the print and electronics as shown in the image. Use some double-sided tape to secure the ESP32, and use the adhesive provided with the LED strips. Make sure the excess wire is tucked in and does not rise higher than the two platforms on the sides.

Now, the diffusers can be added. If the two 3D-printed diffusers do not suit your preference, hot glue can be applied in moderate quantities over the LEDs to diffuse the light.

Next, insert the glass block and place the top part on. The tolerances should keep the block in place, but extra hot glue can be added to ensure the parts do not detach.

Programing

As I'm not experienced in coding, I've attached a simple code for turning on a single color. The code should be uploaded using the Arduino IDE, with the appropriate board model selected. If the code upload fails, try holding the boot button while uploading. If any other issues arise, seek help on YouTube or Reddit.

With a little bit of research and coding, this lamp could become a Wi-Fi–controlled one. I encourage you to try creating something like this and share it in the comments. :)

Here is the code:

#include <Adafruit_NeoPixel.h>

#define LED_PIN 4
#define LED_COUNT 30 // Change to the number of LEDs in your strip

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
strip.begin();
strip.show();
strip.setBrightness(255);


for(int i = 0; i < LED_COUNT; i++) {
strip.setPixelColor(i, strip.Color(127, 0, 255)); // Change the RGB values to your liking
}
strip.show();
}

void loop() {
}

Ready Product

Photoroom_20250321_154506.JPEG

Step back and enjoy your new lamp :)