67 lines
2.1 KiB
Markdown
67 lines
2.1 KiB
Markdown
# CDashDisplay
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The 'C' is for Cheap.
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This project uses a cheap yellow display (ESP32-8048S043) as its foundation. It
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can be acquired for round 30-40€ on Aliexpress, for example.
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Currently I have a way to mount it on a G29 because its what I have.
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To drive it I one of my other projects: [ESDI](https://github.com/ESilva15/ESDI)
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## Many thanks
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- to [mgaman/ESP32-4827S043-LVGL](https://github.com/mgaman/ESP32-4827S043-LVGL):
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don't remember exactly how but it helped me understand how to set up this ESP32
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for development.
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## Assembly
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It requires a very simple modification to the G29. The display will seat between
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the base and the steering wheel and for the stock G29 paddles to remain functional,
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the steering wheel must be spaced.
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I used simple spacers that I had laying around with OD≃8mm and ID≃5mm. They will
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go on the screws that screw the wheel to the base:
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# Roadmap
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- [ ] Simhub support
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- [ ] Better layout tooling
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- [ ] Dynamic layout/data
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### Development
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#### Debugging wires
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| CYD | Serial Cable |
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| -------------- | ------------ |
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| Yellow [RX 18] | Green |
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| Blue [TX 19] | White |
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The `RX18` and `TX19` pins are the `IO18` and `IO19` pins on the board and
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probably are labeled as `UART1` and `USB`.
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This is the `Serial2` we define on `main.cpp` currently.
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Then we listen to it with something like ``.
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### Cool fonts I like:
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- u8g2_font_bubble_tr (really cool for splash screens)
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- u8g2_font_helvR10_tr (very readable, should really try this one)
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- u8g2_font_6x12_tf (monospace)
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### Weird font rendering stuff going on
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When the cursor is set to a position, the text will actually render
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from the left bottom corner, so 0,0 will actually render text that
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can't be viewed.
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Solution, for now:
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```cpp
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U8G2 u8g2;
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u8g2.setFont(u8g2_font_9x18_tf);
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int ascent = u8g2.getAscent();
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// will probably vary from font to font tho, right now I'm using
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// monospace and that's enough
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```
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