128x64 Graphic LCD -Blue Backlight Documentation

Component Name

128x64 Graphic LCD - Blue Backlight

Overview

The 128x64 Graphic LCD - Blue Backlight is a compact and versatile display module designed for a wide range of applications in the Internet of Things (IoT) and embedded systems. This graphic liquid crystal display (LCD) features a high-resolution 128x64 pixel matrix, a blue backlight for enhanced visibility, and a range of connectivity options, making it an ideal choice for developers and engineers.

Functionality

The 128x64 Graphic LCD - Blue Backlight is a graphical display component that allows users to display a variety of graphical elements, including images, fonts, and symbols, on a compact screen. The display is capable of rendering 128 pixels horizontally and 64 pixels vertically, providing a high level of detail and clarity. The blue backlight feature ensures that the display remains visible in low-light environments, making it suitable for use in a variety of settings.

Key Features

High-Resolution Display: The 128x64 pixel matrix provides a high level of detail and clarity, making it suitable for displaying complex graphics, images, and text.
Blue Backlight: The integrated blue backlight enhances display visibility in low-light environments, ensuring that the display remains clear and readable.
Compact Size: The display module is designed to be compact and lightweight, making it easy to integrate into a variety of applications, including wearables, IoT devices, and handheld devices.
Multiple Connectivity Options: The display module features a range of connectivity options, including SPI, I2C, and Parallel interfaces, allowing for easy integration with a variety of microcontrollers and development boards.
Low Power Consumption: The display module is designed to be power-efficient, consuming minimal power, making it suitable for battery-powered devices.
Operating Temperature Range: The display module operates within a temperature range of -20C to +70C, making it suitable for use in a variety of environments.
Display Mode: The display module supports both graphic and text modes, allowing users to display a wide range of graphical elements and text-based information.

Technical Specifications

Display Type

Graphic LCD

Resolution

128x64 pixels

Display Size

1.44 inches

Aspect Ratio

1

Pixel Pitch

0.16 mm x 0.16 mm

Viewing Angle

60/60 (left/right), 45/45 (up/down)

Backlight

Blue LED

Backlight Voltage

5V

Interface

SPI, I2C, Parallel

Power Consumption

30 mA ( typical), 50 mA (max)

Operating Temperature

-20C to +70C

Storage Temperature

-30C to +80C

Applications

The 128x64 Graphic LCD - Blue Backlight is suitable for a wide range of applications, including

IoT Devices

Wearables

Handheld Devices

Industrial Control Systems

Medical Devices

Automotive Systems

Display Modules for Microcontrollers and Development Boards

Additional Resources

For more information on the 128x64 Graphic LCD - Blue Backlight, including datasheets, application notes, and development resources, please visit the manufacturer's website or contact a local distributor.

Pin Configuration

Component Overview
The 128x64 Graphic LCD with a Blue Backlight is a versatile display module designed for various IoT applications, including industrial control systems, medical devices, and consumer electronics. This module features a 128x64 pixel graphical LCD display with a blue backlight, providing excellent visibility in both bright and dim environments.
Pinout Description
The 128x64 Graphic LCD module has a 14-pin interface, which can be connected to a microcontroller or other compatible devices. Here's a detailed explanation of each pin:
1. VCC (Pin 1)
Function: Power supply (Positive voltage)
Description: Connect to a 5V power source. Typically, this pin is connected to the VCC pin of a microcontroller or a 5V power regulator.
2. GND (Pin 2)
Function: Ground (Negative voltage)
Description: Connect to the ground terminal of the power source or the GND pin of a microcontroller.
3. RS (Pin 3)
Function: Register Select
Description: This pin is used to select the type of data being sent to the LCD module. When RS is high (1), the module is in data mode. When RS is low (0), the module is in instruction mode.
4. RW (Pin 4)
Function: Read/Write
Description: This pin is used to control the direction of data transfer between the microcontroller and the LCD module. When RW is high (1), the module is in read mode. When RW is low (0), the module is in write mode.
5. EN (Pin 5)
Function: Enable
Description: This pin is used to enable or disable the LCD module. When EN is high (1), the module is enabled. When EN is low (0), the module is disabled.
6. DB0 (Pin 6)
Function: Data Bit 0
Description: This pin is one of the 8-bit data bus lines used to transfer data between the microcontroller and the LCD module.
7. DB1 (Pin 7)
Function: Data Bit 1
Description: This pin is one of the 8-bit data bus lines used to transfer data between the microcontroller and the LCD module.
8. DB2 (Pin 8)
Function: Data Bit 2
Description: This pin is one of the 8-bit data bus lines used to transfer data between the microcontroller and the LCD module.
9. DB3 (Pin 9)
Function: Data Bit 3
Description: This pin is one of the 8-bit data bus lines used to transfer data between the microcontroller and the LCD module.
10. DB4 (Pin 10)
Function: Data Bit 4
Description: This pin is one of the 8-bit data bus lines used to transfer data between the microcontroller and the LCD module.
11. DB5 (Pin 11)
Function: Data Bit 5
Description: This pin is one of the 8-bit data bus lines used to transfer data between the microcontroller and the LCD module.
12. DB6 (Pin 12)
Function: Data Bit 6
Description: This pin is one of the 8-bit data bus lines used to transfer data between the microcontroller and the LCD module.
13. DB7 (Pin 13)
Function: Data Bit 7
Description: This pin is one of the 8-bit data bus lines used to transfer data between the microcontroller and the LCD module.
14. BL (Pin 14)
Function: Backlight
Description: This pin controls the blue backlight of the LCD module. When BL is high (1), the backlight is enabled. When BL is low (0), the backlight is disabled.
Connection Structure
To connect the 128x64 Graphic LCD module to a microcontroller or other compatible devices, follow this structure:
VCC (Pin 1) 5V Power Source
GND (Pin 2) GND
RS (Pin 3) Microcontroller Digital Output (e.g., Pin 12 of an Arduino Uno)
RW (Pin 4) Microcontroller Digital Output (e.g., Pin 13 of an Arduino Uno)
EN (Pin 5) Microcontroller Digital Output (e.g., Pin 14 of an Arduino Uno)
DB0-DB7 (Pins 6-13) Microcontroller Data Bus (e.g., Pins 2-9 of an Arduino Uno)
BL (Pin 14) Microcontroller Digital Output (e.g., Pin 15 of an Arduino Uno) or 5V Power Source (if permanent backlight is desired)
Note: The specific pin connections may vary depending on the microcontroller or device being used. Always refer to the datasheet of the microcontroller and the LCD module for specific connection requirements.

Code Examples

Component Documentation: 128x64 Graphic LCD - Blue Backlight

Overview

The 128x64 Graphic LCD with blue backlight is a compact display module designed for embedded systems and IoT projects. This component features a 128x64 pixel resolution, a blue backlight for visibility in low-light environments, and a built-in controller for easy interface with microcontrollers.

Technical Specifications

Display Type: Graphic LCD
 Resolution: 128x64 pixels
 Display Size: 1.8 inches
 Backlight Color: Blue
 Interface: Parallel 8-bit or Serial SPI
 Power Supply: 5V
 Operating Temperature: -20C to 70C

Pinouts

VCC: 5V Power Supply
 GND: Ground
 D0-D7: 8-bit Parallel Data Bus
 RS: Register Select (Data/Command)
 RW: Read/Write Control
 EN: Enable
 SCL: Serial Clock (SPI Mode)
 SDA: Serial Data (SPI Mode)
 BL: Backlight Control

Example Code

### Example 1: Arduino Wiring and Serial Communication

In this example, we'll demonstrate how to connect the 128x64 Graphic LCD to an Arduino board and display a simple message using the Serial SPI interface.

Connections:

VCC to Arduino 5V
 GND to Arduino GND
 SCL to Arduino Digital Pin 13 (SCK)
 SDA to Arduino Digital Pin 11 (MOSI)
 BL to Arduino Digital Pin 10 (optional, for backlight control)

Code:
```c++
#include <Arduino.h>
#include <SPI.h>

#define LCD_CS  10 // Chip Select
#define LCD_CLK 13 // Clock
#define LCD_MOSI 11 // Data

void setup() {
  SPI.begin();
  pinMode(LCD_CS, OUTPUT);
  pinMode(LCD_CLK, OUTPUT);
  pinMode(LCD_MOSI, OUTPUT);

// Initialize LCD
  digitalWrite(LCD_CS, LOW);
  SPI.transfer(0x01); // Clear Display
  digitalWrite(LCD_CS, HIGH);

delay(100);

// Set Cursor Position
  digitalWrite(LCD_CS, LOW);
  SPI.transfer(0x10); // Set X=0, Y=0
  digitalWrite(LCD_CS, HIGH);

delay(100);

// Write Text
  digitalWrite(LCD_CS, LOW);
  SPI.transfer("Hello, World!"); // Write Text
  digitalWrite(LCD_CS, HIGH);
}

void loop() {
  // No operation
}
```
### Example 2: Raspberry Pi Wiring and Python Library

In this example, we'll demonstrate how to connect the 128x64 Graphic LCD to a Raspberry Pi and display a simple image using the RPLCD Python library.

Connections:

VCC to Raspberry Pi 5V
 GND to Raspberry Pi GND
 D0-D7 to Raspberry Pi GPIO 7-14 (GPIO mode)

Code:
```python
import RPLCD

# Initialize LCD
lcd = RPLCD.CharLCD(cols=128, rows=64, pin_rs=7, pin_e=8, pins_Data=[15, 18, 23, 24, 17, 22, 25, 8])

# Clear Display
lcd.clear()

# Set Cursor Position
lcd.setCursor(0, 0)

# Write Text
lcd.write("Hello, World!")

# Display Image (optional)
image = RPLCD.Image("image.bmp")
lcd.display_image(image)
```
Note: Make sure to install the RPLCD library using `pip install RPLCD` and configure the pins according to your Raspberry Pi's GPIO layout.

### Example 3: ESP32 Wiring and MicroPython

In this example, we'll demonstrate how to connect the 128x64 Graphic LCD to an ESP32 board and display a simple graphic using MicroPython.

Connections:

VCC to ESP32 5V
 GND to ESP32 GND
 SCL to ESP32 GPIO 18 (SCK)
 SDA to ESP32 GPIO 23 (MOSI)
 BL to ESP32 GPIO 19 (optional, for backlight control)

Code:
```python
import machine
import utime

# Initialize LCD
lcd = machine.SPI(1, baudrate=1000000)
lcd.init()

# Clear Display
lcd.write(0x01)

# Set Cursor Position
lcd.write(0x10, 0x00)

# Draw Rectangle
lcd.draw_rect(10, 10, 50, 50, 1)

# Display Graphic
lcd.display()
```
Note: Make sure to configure the ESP32's SPI interface using `machine.SPI` and adjust the pins according to your ESP32 board's layout.

These examples demonstrate the basic usage of the 128x64 Graphic LCD with blue backlight in various contexts. You can modify the code to suit your specific project requirements and explore the full potential of this display module.

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