Difference between revisions of "MCookie-OLED"

Microduino-OLED

mCookie-OLED is based on SSD1306 0.96-inch 128*64 OLED display module, adopting the IIC (I2C) interface and communicating with the a core module by connecting to an IIC interface on mCookie-Hub or stacked directly on an mCookie stack.

Features

• Single color (white) on a back background OLED display.
• No back-light needed as OLED is view-able in dark conditions.
• Low voltage and power consumption;
• Communication over I2C to save IO interfaces.
• Small, cheap, stackable and open.

Specification

• Resolution: 128x64;
• Size of the screen: 0.96 inch;
• Interface: IIC communication;
• Voltage: 3.3V.

Document

• Uses a SSD1306 module: https://www.google.com/#q=SSD1306+datasheet&*
• Uses the u8glib OLED library for control:
  • u8glib Github: https://github.com/olikraus/u8glib
  • u8glib Github Wiki / Reference: https://github.com/olikraus/u8glib/wiki

Development

For the development, it need to be supported by _01_Microduino_OLED_U8glib library and check the library file here: (Installation Address)\Microduino-IDE\hardware\Microduino\avr\libraries

• Build mCookie development environment: MCookie-CoreUSB_Getting_started。
• Open Arduino IDE, select "Microduino-CoreUSB" under "ools->Board".

Board

• Open IDE and find "_01_Microduino_OLED_U8glib " examples under " File->Examples ".

_01_Microduino_OLED_U8glib

Project

u8glib Library Program Examples

• Open Arduino IDE, click "HelloWorld"under " File->Examples->_01_Microduino_OLED_U8glib " and open program examples.

• Download after compiling and you'll see "HelloWorld!" on the screen.
• Display character/variable:
  • Use u8g.print(xx) function just the same way like Serial.print(xx).
• Change font:
  • Use u8g.setFont (xx) function to change the font, parentheses "xx" can be replaced by the corresponding font library name (you can search font library in u8g.h within U8glib \utility folder);
  • Large font is recommended for u8g_font_7x13, middle font for u8g_font_fixed_v0r and small font for u8g_font_chikitar;
• Change coordinates:
  • Use u8g.setPrintPos (x, y) function to change the display of coordinates
• Screen Rotation：
  • Post u8g.setRot180() in void setup() function, the screen will be flipped to 180-degree, you also can change 180 to 90,270;

Users can open other program examples and see the result. Other Projects: OLED Application

FAQ

• What is the voltage of the power supply?
  • 3.3V
• What is the construction for the OLED when using the u8glib?
  • Constructor with the U8GLIB_SSD1306_128X64 used since this is the type of OLED module: https://github.com/olikraus/u8glib/wiki/device#ssd1306-128x64

Purchase

mCookie-OLED-Front

mCookie-OLED-Back

Video