2015-11-09 02:02:19 +08:00
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2016-01-01 16:49:32 +08:00
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U8glib V2: Name and project goals
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https://github.com/olikraus/u8g2
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U8g2 = Universal 8bit Graphics
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[U]niversal: Support for many displays ans development platforms
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[8]bit: Initial focus had been 8 bit microcontroller systems
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[g]raphics": U8g2 is a graphics library with focus on monochrome graphics displays
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[2]: Second generation and successor of u8glib
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2015-11-09 02:02:19 +08:00
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U8glib V2: Features and Limitations
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2015-11-14 19:32:43 +08:00
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- Arduino Standard Libs
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- Full Memory Buffer
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2015-12-09 04:30:14 +08:00
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- 3-wire-SPI
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2015-11-14 19:32:43 +08:00
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2015-11-09 02:02:19 +08:00
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- Unicode Support
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Unicode plane 0 (Basic Multilingual Plane, BMP, glyphs with 0x0000-0xffff)
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is fully supported.
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Limitation: Unicode planes > 0 are not supported
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- UTF-8 Support
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2 and 3 byte sequences are detected and handled.
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Limitation:
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2015-11-10 05:30:06 +08:00
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Behavior for sequences with more than 3 bytes is unknown.
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2015-11-28 03:23:32 +08:00
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2016-01-01 16:49:32 +08:00
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- Large number of fonts
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2015-12-23 16:04:24 +08:00
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- Compilation speed improved (font data)
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2015-11-28 03:23:32 +08:00
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2015-12-25 23:42:45 +08:00
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- "Text only" sub library: U8x8
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2015-11-28 03:23:32 +08:00
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- less RAM/ROM usage
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- Hardware supported display flip
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- Better hardware support
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2015-12-23 16:04:24 +08:00
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u8g vs. u8g2
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2016-01-01 16:49:32 +08:00
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- begin() must be called (optional in u8g)
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2015-12-23 17:44:20 +08:00
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- constructor contains name of communicaton interface and
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also contains the display orientation as first argument
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2016-01-03 23:18:15 +08:00
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- u8g2.drawStr90 does not exist any more use
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2016-01-03 20:20:48 +08:00
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void u8g2_SetFontDirection(u8g2_t *u8g2, uint8_t dir);
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2016-01-03 23:18:15 +08:00
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- Font transparency was defined in the .begin() statement. This is now
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handled by setFontMode
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- getHeight() renamed to getDisplayHeight()
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- getWidth() renamed to getDisplayWidth()
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