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uc1701: make contrast configurable

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Signed-off-by:  Eric Callahan <arksine.code@gmail.com>
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Arksine 2019-04-02 12:49:08 -04:00 • committed by KevinOConnor
parent 9bd3e80421
commit 2e16be224e
2 changed files with 5 additions and 1 deletions
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klippy/extras/display/uc1701.py
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@ -153,6 +153,7 @@ class I2C:
class UC1701(DisplayBase):
def __init__(self, config):
DisplayBase.__init__(self, SPI4wire(config, "a0_pin"))
self.contrast = config.getint('contrast', 40, minval=0, maxval=63)
def init(self):
init_cmds = [0xE2, # System reset
0x40, # Set display to start at line 0
@ -166,7 +167,7 @@ class UC1701(DisplayBase):
0x00, # Booster ratio value (4x)
0x23, # Set resistor ratio (3)
0x81, # Set Electronic Volume
0x28, # Electronic volume value (40)
self.contrast, # Electronic Volume value
0xAC, # Set static indicator off
0x00, # NOP
0xA6, # Disable Inverse