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base repository: micropython/micropython
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head repository: codemee/micropython
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  • 1 commit
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Commits on Aug 18, 2021

  1. Add hardware scrolling functionalities. 

    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.
    @codemee
    codemee committed Aug 18, 2021
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