niobe/third_party/u8g2/doc/grayscale.txt

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Ideas for a grayscale library
Controller:
SSD132x 4 Bit, 16 Level
SSD1327 4 Bit, 16 Level Variant B/16H
SSD1327 4 Bit, 16 Level Variant B/16H
SSD1329 4 Bit, 16 Level Variant B/16H
UC1610 2 Bit, 4 Level Variant 4V
UC1611 4 Bit, 16 Level Variant A/16V
UC1617 2 Bit, 4 Level Variant 4H???
UC1638 2 Bit, 4 Level Variant 4V
ST75256 2 Bit, 4 Level Variant 4V
======================
Variant A:
Memory:
aaaabbbb
ccccdddd
aaaa: 0,0
bbbb: 0,1
cccc: 1, 0
dddd: 1,1
======================
Variant B:
Memory:
aaaabbbb
ccccdddd
aaaa: 0,0
bbbb: 1,0
cccc: 0, 1
dddd: 1,1
======================
Variant 4V:
Memory:
aabbccdd
eeffgghh
aa: 0,0
bb: 0,1
cc: 0,2
dd: 0,3
ee: 1,0
ff: 1,1
gg: 1,2
hh: 1,3