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# miniOlED
## _3D printer controller based on 0.96" OLED screen with encoder and sd card reader_
Project is based on [Reprap Forum thread], where i found inspiration and connection diagram to make my own screen.
I found necessary components that does not require soldering and made ergonomic housing for easy control of 3d printer.
## BOM
- OLED 0.96" i2c screen
- Encoder module
- SD Card reader module (SPI)
- M3x12 6pcs
- M2x20 4pcs
- M2x12 4pcs
- M2.5x8 2pcs
- M3x16 2pcs
- OD 10mm cable chain (optional)
Printed parts (any material of choice, PETG recommended):
| Used as | STL name |
| ------ | ------ |
| Base; | _oled-lcd-screen-base.stl_ |
| Upper cover; | _oled-lcd-screen-cable-box-upper.stl_ |
| Lower cover; | _oled-lcd-screen-cable-cover.stl_ |
| Internal link; | _oled-lcs-screen-addon.stl_ |
| Knob; | _oled-lcd-knob.stl_|
Overall mount directions:
> Base attaches all 3 modules, so assemble them at first
> Lower cover and internal link needs to go second
> Upper cover and cable clamp third
> At last knob is to be press fitted onto encoder shaft
This text you see here is *actually- written in Markdown! To get a feel
for Markdown's syntax, type some text into the left window and
watch the results in the right.
## Firmware changes
Preferable Marlin 2.0.9.1 (tested and working).
Newest Marlin version might require changes.
In file _Configuration.h_ you need to specify:
```sh
#define U8GLIB_SSD1306
// DIY TinyOLED https://reprap.org/forum/read.php?13,499572,page=1
#define TINYOLED
```
Changes in _pins_RAMPS.h_ (changes also should include "cleanup" of unused code loops, for it otherwise might not work):
```sh
#if ENABLED(TINYOLED)
#define BTN_EN1 33
#define BTN_EN2 35
#define BTN_ENC 31
#define BEEPER_PIN -1
#define LCD_SDSS 53
#define SD_DETECT_PIN -1
#define KILL_PIN -1
#endif
```
Lastly add lines in _Conditionals_LCD.h_:
```sh
#elif ENABLED(TINYOLED)
#define DOGLCD
#define IS_RRD_SC
// #define IS_ULTIPANEL 1
#define IS_U8GLIB_SSD1306
```
Firmware (Marlin 2.0.9.1) can be found in [miniprusa MC3] project files.
## Schematic
Wiring is the same as with TinyOLED:
Curtesy of [Reprap Forum thread]
## Development
Want to contribute? Great!
To do:
> - add internal cutout to upper cover for longer OLED pins
> - make changes to base to ensure ease of printability (supportless if possible)
> - ensure proper dimensional tolerances for M3 screws on the upper, lower covers
> - additional instructions to implement on newer Marlin versions
## License
GPLv3
**Open Source, Hell Yeah!**
[//]: # (REFLINKS)
[Reprap Forum thread]:<https://reprap.org/forum/read.php?13,499572,page=1>
[miniprusa MC3]: <github.com/JGxFTW/miniprusa>