📝 Product Description:
The IIC / I2C Interface Module is designed to convert standard parallel LCD displays into I2C-compatible devices. It helps reduce wiring complexity by allowing LCDs (like 16×2 and 20×4) to communicate using only two data lines. This module makes projects cleaner, faster to build, and more reliable. It is ideal for Arduino, IoT, and embedded system projects.
⚙️ Product Details:
• Module Type: IIC / I2C LCD Interface Converter
• Communication Protocol: I2C (Two-Wire Interface)
• Operating Voltage: 3.3V – 5V DC
• Chipset: PCF8574 / PCF8574A (May Vary)
• Interface: SDA, SCL
• Output Pins: LCD 16-Pin Header
• Adjustable Contrast: Yes (Onboard Potentiometer)
• Backlight Control: Yes
• Address Configurable: Yes (A0, A1, A2 Jumpers)
• Low Power Consumption
• Compatible With: 16×2, 20×4 LCD (HD44780 Type), Arduino, ESP8266, ESP32, Raspberry Pi
📦 Pack Details:
• Quantity: 2 Pieces
• Condition: New
• Color: Blue / Green PCB (May Vary)
🔧 How to Use:
1. Solder the module to the LCD 16-pin header.
2. Connect VCC to 5V and GND to Ground.
3. Connect SDA and SCL to I2C pins of controller.
4. Scan for I2C address using I2C scanner code.
5. Install LiquidCrystal_I2C library.
6. Upload example code and display text.
📚 Applications:
• LCD Display Projects
• IoT Dashboards
• Sensor Monitoring Systems
• Smart Home Displays
• Embedded Systems
• Robotics Projects
• Educational Electronics Kits
• Industrial Control Panels




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