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2 layers19.8 × 31.5 mmInf mirror board rev4, the printed circuit board in 3D

Neopixel Infinity Mirror using ESP32c3 for high school electronics, engineering, or computer science courses. Features a small 3D printed case, PCB to solder, and uses Adafruit's Neopixel library for control.

Size
19.8 × 31.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
16
Nets
14
Pads
34
Tracks, vias
45, 0
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
20 Feb 2026
Updated
20 Feb 2026

Overview

Inf mirror board rev4 is an open-source printed circuit board by JonWoessner, from the JonWoessner/Infinity-Mirror-Project repository on GitHub, published under the MIT licence. It is a 2-layer board of 19.8 × 31.5 mm with 16 parts on 14 nets, routed with 45 tracks and 0 vias.

It belongs with the lEDs and displays boards and the ESP32 and RISC-V boards of this library.

README

README.md

Neopixel Infinity Mirror using ESP32c3 for high school electronics, engineering, or computer science courses. Features a small 3D printed case, PCB to solder, and uses Adafruit's Neopixel library for control.


Feb 20th Purdue ETTE PD

If you're here for the PD, welcome! We will take care of installing and setting up arduino first thing. If you can, install the Arduino IDE by going to this link: https://www.arduino.cc/en/software/

Once installed, we will add a board manager for the microcontroller we will use. You will need to copy the link below into the Arduino IDE in the Preferences section:

https://espressif.github.io/arduino-esp32/package_esp32_index.json

From there, we will add the "esp32 by Espressif Systems" in our boards manager, by searching for "esp32".

Then, we will add the Adafruit Neopixel Library from the library manager.


New home for the infinity mirror project. need to move over and format/clean materials from other folders. Here's the initial project structure: readme.md -pictures and videos -hardware -3D model -PCB -old laser files pdf/dwg/svg of acrylic parts bill of materials.md -example code -folder with PIO config -folders with Arduino ino's list of Arduino pref url.txt -documentation hardware assembly bill of materials software how tos troubleshooting teaching/curricular notes

Parts

16
QtyValueFootprintReferences
13, , , , , , , , , , , ,
1AccelConnector_JST:JST_EH_B4B-EH-A_1x04_P2.50mm_VerticalAccel
1MOUDLE-SEEEDUINO-XIAO-ESP32C3seeed:MOUDLE14P-SMD-2.54-21X17.8MMU1
1led_stripConnector_JST:JST_EH_B3B-EH-A_1x03_P2.50mm_VerticalLEDs

Questions

How big is the Inf mirror board rev4 PCB?

It measures 19.8 × 31.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Inf mirror board rev4 use?

16 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Inf mirror board rev4 KiCad files?

From the JonWoessner/Infinity-Mirror-Project repository on GitHub, at the commit this page was made from: the board is Hardware/PCB/inf_mirror_board_rev4/inf_mirror_board_rev4.kicad_pcb and its schematic Hardware/PCB/inf_mirror_board_rev4/inf_mirror_board_rev4.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Inf mirror board rev4 design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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