LCD1602 IIC/I2C Blue Backlight

The LCD1602 IIC/I2C Blue Backlight is a 16 × 2 character LCD module with a blue backlight and an I2C adapter board on the back. The adapter cuts the wiring from 16 pins down to just 4 (GND, VCC, SDA and SCL), leaving your Arduino or ESP32 pins free for sensors and other parts. It is a popular choice for showing readings, menus and status messages.

LCD1602 IIC/I2C Blue Backlight Specifications

• Display: 16 characters × 2 lines
• Backlight: blue, with light-coloured characters
• Controller: HD44780-compatible
• Interface: I2C (IIC) through a PCF8574 adapter board
• I2C address: usually 0x27 or 0x3F, depending on the adapter chip
• Supply voltage: 5 V
• Pins: GND, VCC, SDA, SCL
• Contrast: adjustable with the potentiometer on the adapter board

LCD1602 IIC/I2C Blue Backlight Applications

• Showing sensor readings such as temperature, humidity and distance
• Menus and settings screens for Arduino projects
• Clocks, timers and counters
• Status displays for robots, chargers and test equipment

What's in the Box

• 1 × LCD1602 blue backlight display with I2C adapter board

Tip: Install the LiquidCrystal_I2C library and run an I2C scanner sketch to find the address. If the backlight is on but no text appears, slowly turn the contrast potentiometer on the back until the characters show. On an Arduino Uno, SDA is A4 and SCL is A5.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.