# LCD1602显示模块

## 概述

LCD模块将LCD屏镶嵌在PCB上，与arduino主控板连接后即可轻松实现其显示功能。

## 参数

* 尺寸：41.6x31mm
* 工作电压：5V
* 接口类型：XH2.54mm-4P
* 引脚定义：1-地 2-电源 3-SCL 4-SDA

## 接口说明

* 可用端口：四排排针

## 使用方式

![](/files/-LWVPVkUlgBALZDEx8LV)

## 示例代码

![](/files/-LWVPVkWMJ61pwDjhWa4)

![](/files/-LWVPVkYR_tmRhdcttB2)

[LCD1602显示模块示例代码](http://www.haohaodada.com/show.php?id=956241)

## 原理图

{% file src="/files/-LrD7LiggTCjo0J5DOTv" %}
LCD1602显示模块原理图
{% endfile %}

## 尺寸说明

![](/files/-LWVPVk_uAjNqNFeCPJ_)

## 相关资源

{% file src="/files/-LrHOmzuCUadCXenH8gv" %}
PCF8574A芯片说明
{% endfile %}

## 常见问题


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