arduino:displays_for_classic_arduinos:1.8_and_1.44_tft_displays_and_classic_arduinos
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arduino:displays_for_classic_arduinos:1.8_and_1.44_tft_displays_and_classic_arduinos [2018/01/31 04:52] – mithat | arduino:displays_for_classic_arduinos:1.8_and_1.44_tft_displays_and_classic_arduinos [2018/01/31 04:55] (current) – [Ucglib] mithat | ||
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===== Summary evaluation ===== | ===== Summary evaluation ===== | ||
- | These small 1.8" (160x128) and 1.44" (128x128) TFT displays with ST7735 controllers have been [[https:// | + | Small 1.8" (160x128) and 1.44" (128x128) TFT displays with ST7735 controllers have been [[https:// |
One of the concerns with with TFT displays is that they are data gluttons, which means they will put a lot of stress on a piddly Uno/ | One of the concerns with with TFT displays is that they are data gluttons, which means they will put a lot of stress on a piddly Uno/ | ||
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Oli Kraus' [[https:// | Oli Kraus' [[https:// | ||
- | I ran two test cases: one using transparent | + | I ran two test cases: one using solid font rendering and the other with transparent. In both cases, faster hardware SPI was used over slower software SPI. I ran both test cases with both a 3.3V 8 MHz Pro Mini and a 5V 16 MHz Nano, for a total of four tests. |
As you can see from the videos, the speed isn't entirely acceptable. I am assuming this is mostly due to the burden placed by the pretty fonts' data. Frame rates with a 16 MHz processor are double those of an 8 Mhz processor (no surprise). Even though the transparent font rendering is technically faster, the solid rendering artifacts are less annoying. | As you can see from the videos, the speed isn't entirely acceptable. I am assuming this is mostly due to the burden placed by the pretty fonts' data. Frame rates with a 16 MHz processor are double those of an 8 Mhz processor (no surprise). Even though the transparent font rendering is technically faster, the solid rendering artifacts are less annoying. |
arduino/displays_for_classic_arduinos/1.8_and_1.44_tft_displays_and_classic_arduinos.1517374373.txt.gz · Last modified: 2018/01/31 04:52 by mithat