https://github.com/vuurvos1/splitflap
A modernized split flap display
https://github.com/vuurvos1/splitflap
split-flap split-flap-display
Last synced: 12 months ago
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A modernized split flap display
- Host: GitHub
- URL: https://github.com/vuurvos1/splitflap
- Owner: Vuurvos1
- License: mit
- Created: 2021-05-02T16:58:07.000Z (about 5 years ago)
- Default Branch: main
- Last Pushed: 2025-05-14T21:07:57.000Z (about 1 year ago)
- Last Synced: 2025-05-14T22:21:20.684Z (about 1 year ago)
- Topics: split-flap, split-flap-display
- Language: C++
- Homepage:
- Size: 34.7 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
SplitFlap
A modernized split flap display.
## Features
- 50 Flaps per module
- 54mm x 80mm Character size
- Compact 80mm x 160mm x 110mm module size
- 3D printable
- Daisy chained
- Web controllabe
## Dashboard
The display can be controlled through a web dashboard hosted on the controller module.
## Flap Characters
Suggested 50 characters:
```
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z (26)
1 2 3 4 5 6 7 8 9 0 (10)
blank □ full ■ (2)
? ! + - = * ' : , . @ # % € (14)
```
> [!NOTE]
> `0 O` and `1 I` can share the same flap
## Materials
- 1x Nema 17 Stepper Motor
- 1x A4988 Stepper Motor Driver (or similar)
- 1x Hall Effect Switch (a TLE4905L or similar)
- 8x M3 Countersunk Screws (for the body)
- 8x M3 Screws (for the barrel)
- 4x M3x18 Screws (to mount the motor)
- 1x M3 Countersunk Screw (for the flap stopper)
### Micro controller
- Esp32
- Arduino pro micro
I am using an Esp32 for the main module, and you can use any other micro controller like a pro micro for the other modules.
### Motor
I originally got dual shafted Nema 17 motors for this project so I could mount the flap barrel on the back side of the motor.
> [!NOTE]
> You could use any other Nema 17 motor with a reversed D shaft.
> Reversing the shaft can easily be done if you open up the motor and flip the shaft so it sticks out of the "back" of the motor.
> You might need to tweak the motor spacers and use different length screws to mount different motors.
### Driver
- A4988 Stepper Motor Driver