---
product_id: 381702012
title: "HiLetgo 2pcs 5V 2004 1602 LCD Display IIC I2C Adapter IIC Serial Interface Adapter for Arduino Robort Parts"
brand: "hiletgo"
price: "€ 28.71"
currency: EUR
in_stock: true
reviews_count: 5
category: "Hi Letgo"
url: https://www.desertcart.be/products/381702012-hiletgo-2pcs-5v-2004-1602-lcd-display-iic-i2c-adapter
store_origin: BE
region: Belgium
---

# 2.5-6V wide voltage range Compact 41.5x19x15.3mm size I2C protocol support HiLetgo 2pcs 5V 2004 1602 LCD Display IIC I2C Adapter IIC Serial Interface Adapter for Arduino Robort Parts

**Brand:** hiletgo
**Price:** € 28.71
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your Arduino display game with smart, space-saving I2C power!

## Quick Answers

- **What is this?** HiLetgo 2pcs 5V 2004 1602 LCD Display IIC I2C Adapter IIC Serial Interface Adapter for Arduino Robort Parts by hiletgo
- **How much does it cost?** € 28.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/381702012-hiletgo-2pcs-5v-2004-1602-lcd-display-iic-i2c-adapter)

## Best For

- hiletgo enthusiasts

## Why This Product

- Trusted hiletgo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek & Compact Design:** Slim black PCB fits seamlessly behind your LCD, keeping your build clean and professional.
- • **Scalable Multi-Display Setup:** Cascade up to 8 modules with customizable I2C addresses for complex projects.
- • **Maximize Your Arduino IO Pins:** Save 5 IO ports by switching to I2C serial interface—more room for sensors & modules.
- • **Plug & Play Backlight Control:** Easily toggle LCD backlight with jumper settings for perfect visibility anytime.
- • **Precision Contrast Adjustment:** Front-mounted potentiometer lets you fine-tune display contrast on the fly.

## Overview

The HiLetgo 2pcs IIC I2C Serial Interface Adapter transforms standard 1602/2004 LCDs into efficient I2C-driven displays, drastically reducing Arduino IO pin usage. Operating on a flexible 2.5-6V supply, it features adjustable backlight control, a front potentiometer for contrast tuning, and supports cascading up to eight modules with unique addresses. Compact and sleek, this black PCB adapter is ideal for robotics, automation, and prototyping, backed by a strong 4.6-star user rating.

## Description

2pcs IIC I2C Serial Interface Board Module LCD1602 Address Changeable Arduino 1602/2004 I2C Interface 4-Wire 1602/2004 screen Arduino IIC/I2C Interface LCD1602/2004 adapter plate without LCD screen Arduino control board IO port is only 20, plus some sensor, SD card Han, relay modules and more, IO port is not enough, The original 1602/2004 screen requires 7 IO port can drive up, we have developed this module can help you save five IO ports, we send arduino library Product parameters: 1. Dimensions: 41.5mm (length) * 19mm (W) * 15.3mm (height) 2. Weight: 5g 3. PCB Color: Black 4. Supply Voltage :2.5-6V 5. Supports the I2C protocol 6. With backlight power control, can be connected via jumper settings are backlight power. Plug the jumper to connect the backlight off, unplug the jumper to disconnect the backlight power 7. Contrast can be adjusted by turning the blue potentiometer clockwise increase, counterclockwise weakened. Potentiometer design on the front, enabling customers to freely adjust anytime 8. Modules can be cascaded to cascade up to eight. By short-circuiting A0/A1/A2 modify the device address. The default address is 0x27. Note: Please contact us if you need the Schematic and Datasheet.

Review: Not super easy to get setup on Arduino Uno but its working great. I learned the length of hookup wires make a difference. Longer wires (1 foot or so) caused ghosted letters on the display. Here are the critical lines of code: #include  #include  // include i/o class header hd44780_I2Cexp lcd;
Review: Works perfectly, reduces the number of pins used on the mcu. Fits directly on to the back of the LCD display. Libraries are available for Arduino.

## Features

- HiLetgo IIC I2C Serial Interface Module
- Supply Voltage :2.5-6V
- Supports the I2C protocol
- PCB Color: Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00VC2NEU8 |
| Additional Features | Compact |
| Best Sellers Rank | #67,822 in Computers ( See Top 100 in Computers ) #160 in Serial Adapters |
| Brand | HiLetgo |
| Built-In Media | 2 x LCD Display Module |
| Cache Memory Installed Size | 2 |
| Color | Black |
| Compatible Devices | Arduino |
| Connectivity Technology | I2C |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.6 4.6 out of 5 stars (246) |
| Enclosure Material | Plastic |
| Form Factor | Microcontroller |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Disk Interface | Serial ATA |
| Hardware Connectivity | Serial Interface |
| Installation Type | Internal Hard Drive |
| Item Dimensions L x W x Thickness | 42L x 19W x 15Th millimeters |
| Item Weight | 5 Grams |
| Manufacturer | HiLetgo |
| Model Name | 3-01-0080 |
| Model Number | 3-01-0080 |
| Number of Items | 1 |
| Specific Uses For Product | Robotics, Automation, Prototyping |
| UPC | 797698770260 |

## Product Details

- **Connectivity technology:** I2C
- **Brand:** HiLetgo
- **Special features:** Compact
- **Hard disk description:** Mechanical Hard Disk
- **Compatible devices:** Arduino
- **Installation type:** Internal Hard Drive
- **Colour:** Black
- **Specific uses for product:** Robotics, Automation, Prototyping
- **Included components:** 2 x LCD Display Module
- **Cache size:** 2

## Images

![HiLetgo 2pcs 5V 2004 1602 LCD Display IIC I2C Adapter IIC Serial Interface Adapter for Arduino Robort Parts - Image 1](https://m.media-amazon.com/images/I/611yuUp6qYL.jpg)
![HiLetgo 2pcs 5V 2004 1602 LCD Display IIC I2C Adapter IIC Serial Interface Adapter for Arduino Robort Parts - Image 2](https://m.media-amazon.com/images/I/61AQg2-jsEL.jpg)
![HiLetgo 2pcs 5V 2004 1602 LCD Display IIC I2C Adapter IIC Serial Interface Adapter for Arduino Robort Parts - Image 3](https://m.media-amazon.com/images/I/611+c8EAiuL.jpg)
![HiLetgo 2pcs 5V 2004 1602 LCD Display IIC I2C Adapter IIC Serial Interface Adapter for Arduino Robort Parts - Image 4](https://m.media-amazon.com/images/I/51+Du5sRIiL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Anyone have a link to the Data Sheet or maybe just a pinout diagram?**
A: I'm not aware of an available data sheet.

The pins on the long edge of the board align with those on the 1602 display, straight across.

The four pins on one end are labeled, one each for power and ground and two for the I2C connections to the Arduino.

The jumper at the opposite end enables/disables the backlight LED

**Q: I prefer writing my own device drivers (i work in c / asm). where can i get the datasheet pdf for this device?**
A: I would send that request directly to HiLetgo. They have been very helpful to me in the past.

**Q: Are the headers pre-soldered?**
A: Yes, short male header pins. They go through the LCD PCB and just clear the back of the LCD screen. Clip off header pins flush after soldering. IF you need to remove the original pins, heat the short header pin stub and slide out as the solder becomes liquid. The header black base will melt away. Solder-wick the remaining holes.

**Q: How do I obtain the schematic and datasheet for this product?**
A: I have not been able to find one.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***0 on 20 August 2025*

Not super easy to get setup on Arduino Uno but its working great. I learned the length of hookup wires make a difference. Longer wires (1 foot or so) caused ghosted letters on the display. Here are the critical lines of code: #include <hd44780.h> #include <hd44780ioClass/hd44780_I2Cexp.h> // include i/o class header hd44780_I2Cexp lcd;

### ⭐⭐⭐⭐⭐ Review
*by R***S on 17 March 2019*

Works perfectly, reduces the number of pins used on the mcu. Fits directly on to the back of the LCD display. Libraries are available for Arduino.

### ⭐⭐⭐⭐⭐ Review
*by J***L on 10 January 2024*

I was building an external LCD display to use with my Odroid-C4. I needed an I2C interface. This product provided a reliable circuit board, a pinout description to assure compatibility and easy installation. I just don't like the external power pins for backlight since they are extending beyond the board and don't allow for dynamic controls. I ended up using a 2N7000 with a PWM to control the backlight.

## Frequently Bought Together

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-04-22*