rcsim opened a new pull request, #13565:
URL: https://github.com/apache/nuttx/pull/13565
## Summary
Add support to LCD 16x2 with I2C Backpack
## Impact
Users will be able to use LCD 16x2 with I2C Backpack on SMT32F401RC-RS485
Board
## Testing
Configure lcd1602
Build and Flash
Run slcd example:
```
nsh> slcd "Hello NuttX"
Opening /dev/slcd0 for read/write access
Attributes:
rows: 2 columns: 16 nbars: 0
max contrast: 0 max brightness: 1
Clear screen
WRITING:
0000: 1b5b46 .[F
Set brightness to 1
Print [Hello NuttX]
WRITING:
0000: 1b5b471b5b30304c1b5b4548656c6c6f 204e75747458
.[G.[00L.[EHello NuttX
Test complete
nsh>
```
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