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Post by snakn1 on Apr 26, 2019 20:00:18 GMT -8
Help please I need to know how to adjust the brightness and contrast of the display, it is too dim to see well. I think it needs to be changed in the SSD1306.py, but not sure where or how.
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Post by SDL on Apr 28, 2019 17:43:39 GMT -8
Here are some functions from the SSD1306.py file that should get you going:
def set_contrast(self, contrast):
"""Sets the contrast of the display. Contrast should be a value between
0 and 255."""
if contrast < 0 or contrast > 255:
raise ValueError('Contrast must be a value from 0 to 255 (inclusive).')
self.command(SSD1306_SETCONTRAST)
self.command(contrast)
def dim(self, dim):
"""Adjusts contrast to dim the display if dim is True, otherwise sets the
contrast to normal brightness if dim is False.
"""
# Assume dim display.
contrast = 0
# Adjust contrast based on VCC if not dimming.
if not dim:
if self._vccstate == SSD1306_EXTERNALVCC:
contrast = 0x9F
else:
contrast = 0xCF
BP
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