4 Pin IIC/I2C 1.3″ OLED LCD Display 12864

Description

What it is

The 1.3″ IIC/I2C 12864 OLED LCD Pin Display is a pixel matrix display with OLED technology. It features an IIC/I2C interface for easy integration with microcontrollers like Arduino.

Features

• Display size: 1.3 inches
• Display type: OLED
• Resolution: 128×64 pixels
• Interface: IIC/I2C
• Number of pins: 4

What it is for

This LCD display is ideal for displaying real-time data in Arduino projects. It can be used to create stopwatches, timers, display simple information, and more. Its IIC/I2C interface simplifies integration with microcontrollers.

Tutorial: How to use 1.3″ IIC / I2C 12864 OLED LCD 4-pin

This LCD display is ideal for projects that require simple information display. Suitable for beginners and intermediate users in electronics.

What you need

• 1.3″ IIC / I2C 12864 OLED LCD 4-pin
• Arduino or compatible
• Connection cable
• 2kΩ pull-up resistor

Steps

1. 1. Check the datasheet for the display specifications.
2. 2. Connect VCC to the 5V of the Arduino.
3. 3. Connect GND to the GND of the Arduino.
4. 4. Connect SDA to pin A4 of the Arduino.
5. 5. Connect SCL to pin A5 of the Arduino.
6. 6. Connect the pull-up resistor between SDA and VCC.
7. 7. Upload the code to the Arduino.
8. 8. Check the display.

Example code

```
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // larghezza del display
#define SCREEN_HEIGHT 64 // altezza del display

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup() {
  if(!display.begin(SSD1306_I2C_ADDRESS, 0x3C)) {
    Serial.println("Non riesco a inizializzare il display! Verifica le connessioni.");
    while(1);
  }
  display.clearDisplay();
  display.display();
}

void loop() {
  display.clearDisplay();
  display.drawString(0, 0, "Benvenuto su Arduiner!");
  display.display();
}
```

Mini project

Create a simple stopwatch on the display. Set a timer and display the elapsed time.

Common mistakes

• The display does not turn on: check the connections and voltage.
• Messages not displayed: check the SDA and SCL frequency.
• Black screen display: check the pull-up resistor.
• Communication issues: check the Arduino firmware version.

Recommended accessories

• Arduino UNO
• 2kΩ pull-up resistor
• Connection cable
• Text LCD display for Arduino

Frequently asked questions

How can I check if the display is functioning before connecting it to the Arduino?
Connect the display directly to a test board and check the voltage on the display. If there is voltage, the display is functioning.

Why should I use a pull-up resistor?
The pull-up resistor helps stabilize the SDA line, preventing communication issues.

Can I use an 8-pin display instead of a 4-pin one?
No, this tutorial is for 4-pin displays. For 8-pin displays, consult the datasheet.