WLED/usermods/usermod_v2_four_line_display/readme.md

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# I2C 4 Line Display Usermod
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First, thanks to the authors of the ssd11306_i2c_oled_u8g2 mod.
This usermod provides a four line display using either
128x32 or 128x64 OLED displays.
It's can operate independently, but starts to provide
a relatively complete on-device UI when paired with the
Rotary Encoder UI usermod. I strongly encourage you to use
them together.
[See the pair of usermods in action](https://www.youtube.com/watch?v=tITQY80rIOA)
## Installation
Copy and update the example `platformio_override.ini.sample`
from the Rotary Encoder UI usermode folder to the root directory of your particular build.
This file should be placed in the same directory as `platformio.ini`.
### Define Your Options
* `USERMOD_FOUR_LINE_DISPLAY` - define this to have this the Four Line Display mod included wled00\usermods_list.cpp - also tells Rotary Encoder usermod, if installed, that the display is available
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* `FLD_PIN_SCL` - The display SCL pin, defaults to 5
* `FLD_PIN_SDA` - The display SDA pin, defaults to 4
All of the parameters can be configured using Usermods settings page, inluding GPIO pins.
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### PlatformIO requirements
This usermod requires the `U8g2` and `Wire` libraries. See the
`platformio_override.ini.sample` found in the Rotary Encoder
UI usermod folder for how to include these using `platformio_override.ini`.
## Change Log
2021-02
* First public release
2021-04
* Adaptation for runtime configuration.