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今天小编为您带来"Arduino的学习"
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Dear, this is the LearingYard Academy!
Today, the editor will bring you"Learning Arduino"
Welcome to visit!
思维导图Mind mapping
要使用Arduino控制LCD1602液晶显示屏，你需要按照以下步骤操作：
To control the LCD1602 liquid crystal display with Arduino, you need to follow the steps below:
1. 连接硬件：首先，将LCD1602模块连接到Arduino板上。根据你选择的连接方式（4线或8线），接线会有所不同。下面是4线模式的接线示例：LCD1602的VSS引脚连接到Arduino的GND。LCD1602的VDD引脚连接到Arduino的5V。LCD1602的V0引脚通过一个10kΩ的电位器连接到Arduino的5V和GND之间，用于调节对比度。LCD1602的RS引脚连接到Arduino的数字引脚7。LCD1602的RW引脚连接到Arduino的GND（因为通常我们只写入数据）。LCD1602的E引脚连接到Arduino的数字引脚8。LCD1602的D4引脚连接到Arduino的数字引脚9。LCD1602的D5引脚连接到Arduino的数字引脚10。LCD1602的D6引脚连接到Arduino的数字引脚11。LCD1602的D7引脚连接到Arduino的数字引脚12。LCD1602的A引脚（背光正极）连接到Arduino的5V。LCD1602的K引脚（背光负极）连接到Arduino的GND。
1. Connect hardware: First, connect the LCD1602 module to the Arduino board. According to the connection method (4 or 8 lines) you choose, the wiring will be different. Below is a wiring example of the 4 -line mode: The VSS pin of the LCD1602 is connected to the GND of Arduino. The VDD pin of LCD1602 is connected to Arduino's 5V. The V0 pin of the LCD1602 is connected to the 5V and GND of Arduino through a 10kΩ potentiometer to regulate the contrast. The RS pin of the LCD1602 is connected to the number pin 7 of Arduino. The RW pin of the LCD1602 is connected to the GND of Arduino (because we usually only write data). The E pins of LCD1602 are connected to the number pin 8 of Arduino. The D4 pin of the LCD1602 is connected to the number pin 9 of Arduino. The D5 pin of the LCD1602 is connected to the number pin 10 of Arduino. The D6 pin of the LCD1602 is connected to the number pin 11 of Arduino. The D7 pin of the LCD1602 is connected to the number pin 12 of Arduino. LCD1602's A pin (backlight positive) is connected to 5V of Arduino. The K pins (backlight negative) of LCD1602 are connected to the GND of Arduino.
2. 安装库：确保你已经安装了LiquidCrystal库。如果没有，可以在Arduino IDE中通过“管理库”功能安装。
2. Installation library: Make sure you have installed the liquidCrystal library. If not, you can install it through the "Management Library" function in Arduino IDE.
3. 编写代码：使用LiquidCrystal库来控制LCD1602。以下是一个简单的示例代码，用于在LCD1602上显示“Hello, World!”：
3. Write code: Use the liquidCrystal library to control LCD1602. The following is a simple example code, which is used to display "Hello, World!" On LCD1602:
```cpp
#include
// 初始化LCD对象，指定引脚
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
void setup() {
// 设置LCD的列数和行数
lcd.begin(16, 2);
// 打印问候语
lcd.print("Hello, World!");
}
void loop() {
// 这里可以添加其他需要循环执行的代码
}
```
4. 上传代码：将Arduino板通过USB线连接到电脑，打开Arduino IDE，选择正确的板型和端口，然后上传代码到Arduino。
4. Upload code: Connect the Arduino board through the USB cable to the computer, open the Arduino IDE, select the correct board and port, and then upload the code to Arduino.
5. 测试和调整：上传代码后，LCD1602应该会显示“Hello, World!”。如果显示不清晰，可以通过调整连接到V0引脚的电位器来改变对比度。
5. Test and adjustment: After uploading the code, LCD1602 should display "Hello, World!". If the display is not clear, the contrast can be changed by adjusting the potentiometer connected to the V0 pin.
通过这个基础示例，你可以根据自己的需求修改代码，以显示不同的文本或数据。例如，你可以读取传感器数据并在LCD上显示，或者创建一个用户界面来与用户交互。
Through this basic example, you can modify the code according to your needs to display different texts or data. For example, you can read sensor data and display on LCD, or create a user interface to interact with users.
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参考资料：谷歌翻译、百度、B站
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