---
product_id: 156115449
title: "SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield for Arduino Uno Mega2560"
brand: "sunfounder"
price: "7334 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/156115449-sunfounder-iic-i2c-twi-serial-2004-20x4-lcd-module-shield
store_origin: IS
region: Iceland
---

# 60x99x22 mm 5V DC Power I2C Interface SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield for Arduino Uno Mega2560

**Brand:** sunfounder
**Price:** 7334 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Projects with Clarity!

## Quick Answers

- **What is this?** SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield for Arduino Uno Mega2560 by sunfounder
- **How much does it cost?** 7334 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/156115449-sunfounder-iic-i2c-twi-serial-2004-20x4-lcd-module-shield)

## Best For

- sunfounder enthusiasts

## Why This Product

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

## Key Features

- • **⚡ Power Efficient:** Operates on a low 5V DC, perfect for your projects.
- • **📦 Compact Design:** Sleek dimensions of 60x99x22 mm fit seamlessly into any setup.
- • **🌍 Arduino Compatible:** Works flawlessly with Arduino Uno and Mega2560 boards.
- • **🔗 Effortless Connectivity:** Utilizes IIC/I2C interface, requiring only 2 I/O ports.
- • **🖥️ Crystal Clear Display:** Showcase 4 rows of 20 characters for maximum visibility.

## Overview

The SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield is a versatile display solution for Arduino enthusiasts. With a clear 4x20 character display, it operates on a low 5V DC and features a compact design, making it ideal for various projects. Its IIC/I2C interface simplifies connections, allowing you to focus on creativity without the clutter of excessive wiring.

## Description

Full description not available

## Features

- Displays characters of 4 rows with 20 characters in each.
- Working voltage: 5V DC; Dimension: 60×99x22 mm.
- IIC/I2C interface; only takes two I/O ports.
- I2C Address: 0x27 or 0x3F.
- Works with Arduino Uno/Mega2560 board.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Language: | English |
| Model Number | 8541582407 |
| Assembly Required | No |
| Batteries Required | No |
| Batteries Included | No |
| Colour | Multicolor |
| Product Dimensions | 19.05 x 12.7 x 0.51 cm; 86.4 g |
| Item model number | 8541582407 |
| Manufacturer recommended age | 8 years and up |
| Manufacturer | SunFounder |
| Country of Origin | USA |
| Item Weight | 86.4 g |

## Product Details

- **Brand:** SunFounder
- **Processor Count:** 1
- **Total USB Ports:** 4
- **UPC:** 701715368224 743447130144

## Images

![SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield for Arduino Uno Mega2560 - Image 1](https://m.media-amazon.com/images/I/71MzP4CZQtL._AC_UL320_.jpg)
![SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield for Arduino Uno Mega2560 - Image 2](https://m.media-amazon.com/images/I/71MzP4CZQtL._AC_UL480_FMwebp_QL65_.jpg)
![SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield for Arduino Uno Mega2560 - Image 3](https://m.media-amazon.com/images/I/71MzP4CZQtL._AC_UL640_FMwebp_QL65_.jpg)
![SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield for Arduino Uno Mega2560 - Image 4](https://m.media-amazon.com/images/I/71MzP4CZQtL._AC_UL800_FMwebp_QL65_.jpg)
![SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield for Arduino Uno Mega2560 - Image 5](https://m.media-amazon.com/images/I/71MzP4CZQtL._AC_UL960_FMwebp_QL65_.jpg)

## Questions & Answers

**Q: It it possible to change the address of the lcd to have multiple lcd on the same bus?**
A: To further expand on Wes' answer (which is excellent!), you can have up to eight (8) on the same bus, per the chip datasheets. The chips have a portion of the address hard-code (which cannot be changed) and the three remaining address lines (A0, A1, and A2) can be jumpered to ground to set seven (7) other addresses - the 8th being no jumpers. IF you happen to get one with an 8574 chip and another with 8574A or 8574T, then you could potentially have up to 16 modules on the same bus as the A and T versions use a different hard-coded address than the 8574.

**Q: Has anyone run this display on 3.3 volts successfully? I'd like to use it on an 8266-12E to display the ip address.**
A: It works on 3.3V, but just barely: it's unusably dim. I changed the supply voltage to 5V and was able to successfully drive it with 3.3V-level I2C signals, although the PCF8574 data sheet says that the minimum Vih level is 0.7 * Vcc = 3.5V. My scope says that the signals are rising to about 3.8V, so there must be some kind of pull-up to 5V on the I2C backpack board. I don't want to rely on that, so for my final design I'll use a PCA9306 I2C level shifter.

**Q: Do these come with an I2C backpack?  I just ordered some of these and they came with no backpack in the package.**
A: There are several product options on the page, some have I2C, some don't. If you chose one that has I2C, it should come with an I2C backpack.

**Q: Does this work for the old raspberry pis that have a 26 pin gpio?**
A: This module uses an i2c serial interface rather than discrete gpio pins.  If your rpi has an i2c, it should work.

## Frequently Bought Together

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-23*