DIYables LCD 1602 I2C 16x2 Display Blue Backlight 5V, Built in Potentiometer
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Quick Overview
This DIYables LCD 1602 I2C display is a 16x2 character LCD with a blue background and white text, built on a compact board where the I2C driver chip is integrated directly onto the LCD PCB instead of using a separate backpack module. This on-board design keeps the module slim while still providing a simple 4-wire I2C connection using only VCC, GND, SDA, and SCL.
The display runs at a native 5V logic level, so it works directly with 5V microcontrollers such as Arduino Uno, Nano, and Mega without a logic level shifter. A contrast adjustment potentiometer is also built directly onto the LCD PCB, so screen contrast can be tuned without any extra wiring or add-on board.
This listing includes 2 LCD 1602 I2C display modules, ideal for status displays, sensor readouts, menus, clocks, and data monitoring projects. The I2C interface reduces wiring complexity and frees up GPIO pins on your microcontroller.
Key Features
- Integrated I2C Chip on PCB — I2C driver chip is built directly onto the LCD circuit board instead of a separate backpack module for a slimmer, compact size
- 5V Native Logic Level — Works directly with 5V microcontrollers such as Arduino Uno, Nano, and Mega without a logic level shifter
- Built In Contrast Potentiometer — Contrast adjustment potentiometer is integrated onto the LCD PCB with no extra wiring or add-on board required
- 16x2 Blue Background Display — Clear 16 column, 2 row character display with blue background and white text for easy readability
- Simple 4-Wire I2C Connection — Only VCC, GND, SDA, and SCL wires are needed, reducing wiring complexity
- Compact Form Factor — On-board I2C circuitry results in a slimmer module than designs using a separate I2C backpack
- GPIO Pin Saving — I2C interface frees up GPIO pins compared to parallel-interface LCD displays
- 2-Pack Value Set — Includes 2 LCD 1602 I2C display modules for multiple projects or spares
- Versatile Applications — Suitable for status displays, sensor readouts, menus, clocks, and data monitoring projects
SPECIFICATION
| Specification | Value | |
|---|---|---|
| Product Type | LCD Character Display with Integrated I2C | |
| Display Size | 16x2 (16 columns, 2 rows) | |
| Background Color | Blue | |
| Text Color | White | |
| Interface | I2C (4 wires | VCC, GND, SDA, SCL) |
| I2C Chip Placement | Integrated directly onto LCD PCB (no separate backpack) | |
| Supply Voltage | 5V | |
| Contrast Adjustment | Built-in potentiometer on LCD PCB | |
| Package Quantity | 2 pieces | |
| Compatibility | Arduino Uno, Nano, Mega and other 5V microcontrollers | |
| Applications | Status displays, sensor readouts, menus, clocks, data monitoring |
COMPATIBLE HARDWARE
- Arduino Uno, Nano, Mega — direct I2C connection via SDA/SCL at native 5V logic
- Arduino Uno R4 WiFi/Minima — I2C connection via SDA/SCL pins
- ESP32 development boards — I2C connection, 5V supply with 3.3V logic lines
- ESP8266 boards (NodeMCU, Wemos D1, etc.) — I2C connection, 5V supply with 3.3V logic lines
- Raspberry Pi (all models) — I2C connection, 5V supply with 3.3V logic lines
- Any 5V microcontroller with I2C interface — direct connection via SDA/SCL pins
