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arduino:displays_for_classic_arduinos:0.96_oled_displays_and_classic_arduinos [2018/01/28 04:20] – [Tests] mithatarduino:displays_for_classic_arduinos:tiny_oled_displays_and_classic_arduinos [2018/01/28 06:04] mithat
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-====== Small OLED Displays and the Arduino Uno ======+====== Tiny OLED displays and classic Arduinos ======
  
 ===== Summary evaluation ===== ===== Summary evaluation =====
  
-Very small 128x64 OLED display modules offering both SPI and I2C interfaces via SSD1306 controller have been around for a few years. The most popular size is [[https://www.ebay.com/sch/i.html?_odkw=0.96oled+ssd1306&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X0.96+oled+ssd1306.TRS0&_nkw=0.96+oled+ssd1306&_sacat=0 | 0.96"]], but a larger [[https://www.ebay.com/sch/i.html?_odkw=oled+ssd1306&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.A0.H0.X1.3%22+oled+ssd1306+.TRS1&_nkw=1.3%22+oled+ssd1306+&_sacat=0|1.3"]] version is also available. They are priced very reasonably, and owing to their small physical size they offer high DPI. Since they are monochrome devices, the expected data load they present to the microcontroller is, unlike TFT displays, relatively low.+Very small 128x64 OLED display modules offering both SPI and I2C interfaces via an SSD1306 controller IC have been around for a few years. The most popular size is [[https://www.ebay.com/sch/i.html?_odkw=0.96oled+ssd1306&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X0.96+oled+ssd1306.TRS0&_nkw=0.96+oled+ssd1306&_sacat=0 | 0.96"]], but a larger [[https://www.ebay.com/sch/i.html?_odkw=oled+ssd1306&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.A0.H0.X1.3%22+oled+ssd1306+.TRS1&_nkw=1.3%22+oled+ssd1306+&_sacat=0|1.3"]] version is also available. They are priced very reasonably, and owing to their small physical size they offer high DPI. Since they are monochrome devices, the expected data load they present to the microcontroller is, unlike TFT displays, relatively low.
  
-The 1.3" size in particular is an attractive alternative to the [[arduino:displays_for_classic_arduinos:nokia_5110_displays_and_classic_arduinos|Nokia 5110 display]] as a display that isn't surplus and offers a more modern appearance. They are also a promising alternative to [[arduino:displays_for_classic_arduinos:1.8_and_1.44_tft_displays_and_classic_arduinos|1.8" and 1.44" TFT displays]], whose data requirements leaves speed wanting with the wimpy little Uno/Nano/Pro Mini.+The 1.3" size in particular is an attractive alternative to the [[arduino:displays_for_classic_arduinos:nokia_5110_displays_and_classic_arduinos|Nokia 5110 display]] in that it isn't surplus and offers a more modern appearance. They are also a promising alternative to [[arduino:displays_for_classic_arduinos:1.8_and_1.44_tft_displays_and_classic_arduinos|1.8" and 1.44" TFT displays]], whose data requirements leaves speed wanting with the wimpy little Uno/Nano/Pro Mini.
  
-In the tests that follow, I am striving to answer first whether the rendering updates will be fast enough for reasonable use and second whether there will be any memory left to do anything interesting. They are certainly fast enough, but the required program storage and dynamic memory space isn't trivial.+In the tests that follow, I am striving to answer first whether the rendering updates will be fast enough for reasonable use and second whether there will be any memory left to do anything interesting. 
 + 
 +The frame update time of 76 ms with a 16 MHz processor (the inverse of the fps noted in the [[ display_SSD1306_OLED_u8g2.ino| source code]]) is respectable, and  
 +character change artifacts are not objectionable. Memory use is on the order of 46% of program storage space and 28% of dynamic memory on a Nano. 
 + 
 +So, they are certainly fast enough, but the required program storage and dynamic memory isn't trivial.
  
 ===== Tests ===== ===== Tests =====
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 The flickering seen in the video isn't present in real life. The flickering seen in the video isn't present in real life.
  
-FIXME video+{{youtube>tFJz17VbPao?560x315&rel=0}}
  
 [[display_SSD1306_OLED_u8g2.ino | source code]] [[display_SSD1306_OLED_u8g2.ino | source code]]
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 The flickering seen in the video isn't present in real life. The flickering seen in the video isn't present in real life.
  
-FIXME video+{{youtube>Vt-n3HNQwLA?560x315&rel=0}}
  
 [[display_SSD1306_OLED_u8glib.ino | source code]] [[display_SSD1306_OLED_u8glib.ino | source code]]
arduino/displays_for_classic_arduinos/tiny_oled_displays_and_classic_arduinos.txt · Last modified: 2018/01/28 06:08 by mithat

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