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products:oled12864:index.html [2012/01/23 17:46]
ladyada [Introduction]
products:oled12864:index.html [2016/01/28 18:05] (current)
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-==== Power requirements ​ ====+==== OLED Power requirements ​ ====
  
  
 The OLED and driver require a 3.3V power supply and 3.3V logic levels for communication. The power requirements depend a little on how much of the display is lit but on average the display uses about 20mA from the 3.3V supply. Built into the OLED driver is a simple switch-cap charge pump that turns 3.3v-5v into a high voltage drive for the OLEDs. You can run the entire display off of one 3.3V supply or use 3.3V for the chip power and up to 4.5V for the OLED charge pump or 3.3V for the chip power and a 7-9V supply directly into the OLED high voltage pin. The OLED and driver require a 3.3V power supply and 3.3V logic levels for communication. The power requirements depend a little on how much of the display is lit but on average the display uses about 20mA from the 3.3V supply. Built into the OLED driver is a simple switch-cap charge pump that turns 3.3v-5v into a high voltage drive for the OLEDs. You can run the entire display off of one 3.3V supply or use 3.3V for the chip power and up to 4.5V for the OLED charge pump or 3.3V for the chip power and a 7-9V supply directly into the OLED high voltage pin.
 +
 +==== 128x32 OLED ====
 +
 +The easier of the OLEDs to power is the small SPI one. The OLED is designed to be 5V compatible so you can power it with 3-5V and the onboard regulator will take care of the rest
 +
 +[[http://​www.ladyada.net/​images/​oled12864/​spi12832solder.jpg|{{ ​ http://​www.ladyada.net/​images/​oled12864/​spi12832solder_t.jpg?​nolink&​500 ​ |}}]]
 +
 +Simply connect **GND** to ground, and **Vin** to a 3 to 5V power supply. There will be a 3.3V output on the **3Vo** pin in case you want a regulated 3.3V supply for something else.
 +
 +=== 128x64 OLED ===
 +
 +The 128x64 OLED is a little more complex to get running as it is not 5V compatible by default, so you have to provide it with 3.3V power
  
 [[http://​www.ladyada.net/​images/​oled12864/​oledback.jpg|{{ ​ http://​www.ladyada.net/​images/​oled12864/​oledback_t.jpg?​nolink&​500x442 ​ |}}]] [[http://​www.ladyada.net/​images/​oled12864/​oledback.jpg|{{ ​ http://​www.ladyada.net/​images/​oled12864/​oledback_t.jpg?​nolink&​500x442 ​ |}}]]
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 For most users, we suggest connecting **VDD** and** VBAT** together to 3.3V and then leaving **VCC** unconnected For most users, we suggest connecting **VDD** and** VBAT** together to 3.3V and then leaving **VCC** unconnected
 +
  
  
 ==== Wiring ​ ==== ==== Wiring ​ ====
  
 +==== 128x32 SPI OLED ====
  
-The OLED runs at 3.3V so you'll need to use a level shifting ​chip to use with a 5V microcontrollerThe following will assume that is the case. If you're running ​3.3V microcontroller system, you can skip the level shifter.+The 128x32 SPI OLED is very easy to get up and running because it has built in level shifting. 
 +First up, take piece of 0.1" header 8 pins long 
  
 +[[http://​www.ladyada.net/​images/​oled12864/​spi12832pins.jpg|{{ ​ http://​www.ladyada.net/​images/​oled12864/​spi12832pins_t.jpg?​nolink&​500 ​ |}}]]
  
 +Plug the header long end down into a breadboard and place the OLED on top. Solder the short pins into the OLED PCB
 +
 +[[http://​www.ladyada.net/​images/​oled12864/​spi12832solder.jpg|{{ ​ http://​www.ladyada.net/​images/​oled12864/​spi12832solder_t.jpg?​nolink&​500 ​ |}}]]
 +
 +Finally, connect the pins to your Arduino - **GND** goes to ground, **Vin** goes to 5V, **DATA** to digital **9**, **CLK** to digital **10**, **D/C** to digital **11**, **RST** to digital **13** and finally **CS** to digital **12** ​
 +
 +[[http://​www.ladyada.net/​images/​oled12864/​spi12832wiring.jpg|{{ ​ http://​www.ladyada.net/​images/​oled12864/​spi12832wiring_t.jpg?​nolink&​500 ​ |}}]]
 +
 +<class notewarning>​
 +If you're using the 128x32 OLED, be sure to uncomment the "#​define SSD1306_128_32"​ in the top of Adafruit_SSD1306.h to change the buffer size
 +</​class>​
 +
 +==== 128x64 OLED ====
 +
 +The 128x64 OLED runs at 3.3V and does not have a built in level shifter so you'll need to use a level shifting chip to use with a 5V microcontroller. The following will assume that is the case. If you're running a 3.3V microcontroller system, you can skip the level shifter.
  
 We'll assume you want to use this in a breadboard, take a piece of 0.1" header 10 pins long We'll assume you want to use this in a breadboard, take a piece of 0.1" header 10 pins long
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 [[http://​www.ladyada.net/​images/​oled12864/​wired.jpg|{{ ​ http://​www.ladyada.net/​images/​oled12864/​wired_t.jpg?​nolink&​500x367 ​ |}}]] [[http://​www.ladyada.net/​images/​oled12864/​wired.jpg|{{ ​ http://​www.ladyada.net/​images/​oled12864/​wired_t.jpg?​nolink&​500x367 ​ |}}]]
  
-Download and install our Arduino ​library. If you're using another systemits pretty simple to adapt our code, the interface we use is basic bit-twiddling SPI.+==== Arduino Library & Examples ==== 
 + 
 +Download and install our Arduino ​libraries – the links are at the bottom of this page. If you're using a different microcontrollerthe code is pretty simple to adapt, the interface we use is basic bit-twiddling SPI.
  
 Load the example sketch to demonstrate the capabilities of the library and display. Load the example sketch to demonstrate the capabilities of the library and display.
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-**[[https://​github.com/​adafruit/​SSD1306|You can download our SSD1306 OLED display Arduino library from github]]** which comes with example code. The library can print text, bitmaps, pixels, rectangles, circles and lines. It uses 1K of RAM since it needs to buffer the entire display but its very fast! The code is simple to adapt to any other microcontroller.+**[[https://​github.com/​adafruit/​Adafruit_SSD1306|You can download our SSD1306 OLED display Arduino library from github]]** which comes with example code. The library can print text, bitmaps, pixels, rectangles, circles and lines. It uses 1K of RAM since it needs to buffer the entire display but its very fast! The code is simple to adapt to any other microcontroller. You'll also have to install the  [[https://​github.com/​adafruit/​Adafruit-GFX-Library|Adafruit GFX graphics core library at this github repo]] and install it after you've gotten the OLED driver library.
  
 **[[http://​www.adafruit.com/​datasheets/​UG-2864HSWEG01.pdf|UG-2864HSWEG01]] Datasheet** **[[http://​www.adafruit.com/​datasheets/​UG-2864HSWEG01.pdf|UG-2864HSWEG01]] Datasheet**
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 **[[http://​www.adafruit.com/​datasheets/​SSD1306.pdf|SSD1306]] Datasheet** **[[http://​www.adafruit.com/​datasheets/​SSD1306.pdf|SSD1306]] Datasheet**
 +
 +**[[https://​github.com/​adafruit/​Adafruit-128x32-SPI-OLED-breakout-board-PCB|GitHub repo for 128x32 PCB]]**
 +
 +**[[https://​github.com/​adafruit/​Adafruit-128x64-Monochrome-OLED-PCB|GitHub repo for 128x64 PCB]]**
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