![]() ![]() The image below shows how to connect the Geekcreit 0.91 inch OLED I2C display to Arduino. How to Connect the Geekcreit 128 x 32 0.96 Inch OLED I2C Display to Arduino – Wiring Diagram Arduino MEGA 2560 0.91 Inch OLED Wiring Pin connections are as follows for wiring the OLED display to an Arduino Uno. ![]() Pin connections for wiring an Arduino MEGA 2560 to the OLED display are as follows.Īrduino 128 x 32 OLED I☬ Libraries for SSD1306 and Graphics Functions #Idisplay tutorial how to# Two Arduino libraries must be installed in the Arduino IDE to start using the display. The SSD1306 driver library is used to initialize the display and provide low level display functions. The GFX library provides graphics functions for displaying text, drawing lines and circles, etc. Both these libraries can be installed from within the Arduino IDE. Use the top menu bar to select Tools → Manage Libraries. This opens the Library Manager dialog box. Select the SSD1306 Driver in the Arduino IDE In the Library Manager dialog box, type SSD1306 in the search field, as shown in the image below. Hover the mouse cursor over the Adafruit SSD1306 item, and then click the Install button that appears. Leave the Library Manager dialog box open to install the GFX library next. With the Library Manager dialog box still open from the above step, type GFX in the search field. Hover the mouse cursor over the Adafruit GFX Library item in the Library Manager dialog box. Open OLED Display Arduino Example SketchĪfter installing the two libraries, as described above, new example sketches are found in the Arduino IDE. These example sketches are found under File → Examples → Adafruit SSD1306 from the top menu of the Arduino IDE. Under File → Examples, scroll down to find the section called Examples from Custom Libraries to find the Adafruit SSD1306 examples. Open the ssd1306_128x32_12c example sketch from the above menu. The full menu navigation to this sketch is File → Examples → Adafruit SSD1306 → ssd1306_128x32_12c Run the Example OLED SketchĪfter opening the ssd1306_128x32_12c example sketch, load it to the Arduino board with the OLED wired, as already explained. If the wiring is correct, the OLED will start showing a demo that displays various text and graphics on the screen. The only things that can really go wrong are 1) incorrect wiring, 2) faulty display, or 3) incorrect I2C address.Īn I2C address of 0x3C is set for the OLED display in the example sketch. If your display uses a different I2C address, this must be changed in the sketch.Ĭhange the I2C address at the following line of code if your OLED display uses a different address. ![]()
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