Add hardware scrolling functionalities. #7681
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Changes to be committed:
modified: drivers/display/ssd1306.py
The scroll method in the MicroPython's ssd1306 class is based on FrameBuffer class's scroll().That may leave a footprint of the previous colors in the FrameBuffer.
By adopting the modified version of the ssd1306 class written by Tim Toliver, we add the following methods to the ssd1306 class:
- clear()：clear the OLED.
- hw_scroll_h(direction=True, interval=FRAMES_5):continuously scroll to right/left.
- direction: True/False, scroll to right/left.
- interval:
- SSD1306.FRAMES_2
- SSD1306.FRAMES_3
- SSD130.FRAMES_4
- SSD130.FRAMES_5
- SSD130.FRAMES_25
- SSD130.FRAMES_64
- SSD130.FRAMES_128
- SSD130.FRAMES_256
One frame approximate 9.19ms.
- hw_scroll_diag(direction=True, interval=FRAMES_5, offset=1):continuously scroll to up-right/up-left.
- offset: vertical offset per scroll.
- hw_scroll_off()：stop scrolling.
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Perhaps expose the page and column addresses as arguments so you can hw scroll a portion of the display instead of the entire display? |
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That's a good idea. I'll take time to make this done. |
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Thanks @codemee -- This seems useful, but closing due to inactivity. Please feel free to re-open this, but note that the driver has moved to micropython-lib. |
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Changes to be committed:
modified: drivers/display/ssd1306.py
The scroll method in the MicroPython's ssd1306 class is based on FrameBuffer class's scroll().That may leave a footprint of the previous colors in the FrameBuffer.
By adopting the modified version of the ssd1306 class written by Tim Toliver, we add the following methods to the ssd1306 class:
One frame approximate 9.19ms.