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@pdp7
Created September 18, 2018 23:51
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partial update by Michael Welling for micropython on OHS18 badge
change the LUT settings
Michael WellingSep-17 10:29 PM
def set_update_partial(self):
#LUTDefault_partial
self.send_command(0x32)
self.send_data(0x18)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x0F)
self.send_data(0x01)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
#PowerOn
self.send_command(0x22)
self.send_data(0xc0)
self.send_command(0x20)
self.wait_until_idle()
Michael WellingSep-17 10:30 PM
>>> epd.set_update_partial()
>>> epd.display_string_at(fb, 0, 0, "Hello World!", font20, gxgde0213b1.COLORED)
>>> epd.clear_frame(fb)
>>> epd.display_string_at(fb, 0, 0, "Hello World!", font20, gxgde0213b1.COLORED)
>>> epd.display_frame(fb)
Michael WellingSep-17 10:30 PM
you can see a slight ghost of the previous frame
Michael WellingSep-17 10:30 PM
but not flashing
Michael WellingSep-17 10:34 PM
might be might something because not the updates are offset
Michael WellingSep-17 10:34 PM
*missing
oshparkSep-17 10:39 PM
@Michael Welling very nice, is there a commit I can pull in?
Michael WellingSep-17 10:44 PM
not yet
Michael WellingSep-17 10:44 PM
I can do a pull request when I do
oshpark
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pdp7 commented Sep 19, 2018

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