Description
The device shown in your uploaded images is a 16×2 Character LCD Module (often referred to as an “LCD1602”).
This is one of the most common display modules used in electronics and microcontroller projects (such as those using Arduino) for displaying text and numerical data.
Product Overview
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Name: 16×2 Character LCD Module (LCD1602)
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Function: It is an alphanumeric display that can show up to 32 characters (16 characters per line across 2 lines).
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Visuals: Your specific unit features a blue backlight with white text (as seen in the first image).
Technical Specifications
The standard specifications for this module are generally as follows:
| Feature | Specification |
| Display Format | 16 characters × 2 lines |
| Character Matrix | 5 × 8 dots per character |
| Controller IC | HD44780 (or fully compatible equivalent) |
| Operating Voltage | 5V DC |
| Interface | Parallel (16-pin header) or I2C (if used with an I2C adapter backpack) |
| Backlight | LED (Blue background, White text) |
| Operating Temperature | Typically -20°C to +70°C |
| Module Dimensions | Approx. 80mm × 36mm |
Key Features
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HD44780 Compatibility: This is an industry-standard controller. Because it is so common, nearly every microcontroller platform (Arduino, Raspberry Pi, ESP32) has pre-written libraries to make programming it very simple.
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Dual Operating Modes: It can be wired in 8-bit mode (using 8 data pins) or 4-bit mode (using only 4 data pins). 4-bit mode is the most common because it saves valuable GPIO pins on your microcontroller.
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Contrast Control: The
V0(orVEE) pin allows for contrast adjustment. When used in a circuit, this is typically connected to a 10k potentiometer to ensure the text is legible. -
Versatility: As shown in your first image, it is excellent for displaying real-time data, such as sensor readings (e.g., temperature) or status messages.
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