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Build & Assembly

There are two build options for this project:

8-module split-flap display showing SUN16FEB

16-module dual split-flap display showing HELLO WORLD

  • Original Display

    Single ESP32 controlling up to modules over a single I²C bus.

    The original design by Morgan Manly. This project was further improved upon by the community (notably Jordan Hoff, Thom Koopman, and various discord members) with refining the code, increasing the flap count to 48, creating custom pcbs, and much more.

    Original build guide

  • Dual Display

    Single ESP32 controlling up to modules over two I²C buses.

    Enhanced version by Drew Ferguson, based on the original design.

    Dual display guide

Which build is right for you?

Original Dual
Max modules 8 16
Display rows 1 2
Characters shown 8 16
I²C buses 1 2
Dual-bus firmware1 ✅ ✅
Original (rounded) enclosure ✅ ❌
Square enclosure ✅2 ✅
Supports 37 flaps ✅ ✅
Supports 48 flaps ✅ ❌
Enhanced flap accuracy3 ✅ ✅
DIY PCB option ✅ ✅
Purchased PCB option ✅ ✅

  1. Code is backwards compatible for non-dual setups ↩

  2. Square enclosure (currently) only supports 37. Original (rounded) enclosure supports both counts. ↩

  3. Only comes with the square enclosure. ↩