🧠 ESP32 Smart MacroPad Case (3×3 + Encoder + IR + Lolin32)

A flexible TPU enclosure for a smart 3×3 ESP32 multi-device MacroPad or remote. It supports a rotary encoder, IR transmitter/receiver, LED indicator, and optional sensors — all inside a roomy, easy-to-assemble design.

🧩 Features

• Designed for Lolin32 (ESP32) board
• 3×3 keypad layout for Cherry MX switches + diodes
• Support for rotary encoder with push button
• Slots for IR transmitter and receiver
• Space for a status LED and optional accelerometer
• Printed in TPU for flexibility and durability
• Two versions available:
  • Modular version – with removable inserts and covers (great for dual-color prints)
  • Integrated version – clean one-piece body

🧰 Required Parts

• 1× Lolin32 (ESP32)
• 9× Cherry MX (or compatible) switches
• 9× 1N4148 diodes (for keypad matrix)
• 1× Rotary encoder
• 1× Battery (Li-ion/Li-Po)

⚠ Note: On the Lolin32, the battery connector aligns with the USB port, making it hard to fit in the case. I soldered two wires behind the connector to attach the battery more easily.

🖨 Printing Recommendations

• Material: TPU
• Layer height: 0.24 mm
• Infill: 20–30%
• Supports: not required

Full open-source firmware available on GitHub:
👉 https://github.com/rederyk/MacroPad_esp32

The goal of this project is to create an intelligent, mostly offline, multi-device remote using ESP32 boards — and later expand it with touchscreen support (ESP32-S3) and local AI features.

🧪 Current Features

• Keypad and encoder input
• IR send & receive
• LED indicator
• Custom macros
• Modular firmware structure for expansion

💬 Feedback

This is an open project — feedback, remixes, and improvements are welcome! The design and firmware are still evolving, so any testing or suggestions are greatly appreciated.

📜 License

• Model files © rederyk — released under CC BY-SA 4.0
• Firmware © rederyk — released under GPLv3

Both hardware and software are open for community development.