LED 5mm CN: 두 판 사이의 차이

2025년 3월 20일 (목) 20:29 기준 최신판

通过输入恒定电压来发光。

长脚为正极（+），短脚为负极（-），连接时需注意。

注意不要提供超过产品最大电压的电压。

规格

这里介绍的LED规格，具体规格可能因制造商和型号而有所不同。

Color	Minimum Voltage[V]	Maximum Voltage[V]	Standard Current[mA]	Maximum Current[mA]
Red	1.8	2.3	20	50
Yellow	2	2.8
Green	3	3.6
Blue	3.4	3.8
White	3.4	4

所需硬件

LED
Arduino board
Jumper cables

连接

将长脚通过电阻器连接到数字引脚，将短脚连接到Arduino的GND。

如下例所示，可以将长脚连接在一起从一个数字引脚控制，或者为每个LED设置单独的数字引脚以实现独立控制。

Component	Connection to Arduino	Notes
LED(+)	Connected to Resistor	Resistor limits current to Protect LED
Resistor	Connected to D7 Pin	Recommended to use a resistor between 220Ω and 330Ω
LED(-)	Connected to GND

示例代码

#define led 7 // Use pin 7
#define dly 1000

void setup() {
  pinMode(led, OUTPUT);
}

void loop() { // Code for turning on the LED for 1 second intervals
  digitalWrite(led, HIGH);
  delay(dly);
  digitalWrite(led, LOW);
  delay(dly);
}

执行结果

@@ 1번째 줄: / 1번째 줄: @@
-{{#seo:|title=ArduWiki: Arduino LED Guide|title_mode=append|keywords=Arduino, Information Science, Maker Learning, Performance Evaluation, LED, Arduino Projects, Capstone Projects, Arduino Example Code|description=Introduces how to control LEDs with Arduino (basic information, circuit, example code). Can be used in Information Science and Maker classes.}}
+{{#seo:|title=Arduino维基：Arduino LED指南|title_mode=append|keywords=Arduino, 信息科学, 创客学习, 性能评估, LED, Arduino项目, 毕业设计项目, Arduino示例代码|description=介绍如何使用Arduino控制LED（基本信息、电路、示例代码）。可用于信息科学和创客课程。}}
 [[File:5mmled대표이미지.jpg|center|class=coders100]]
-Apply a constant voltage to emit light.
-The longer leg is the positive (+) terminal and the shorter one is the negative (-) terminal, so caution is needed when connecting.
+通过输入恒定电压来发光。
-Be careful not to supply a voltage higher than the maximum voltage of the product.
+长脚为正极（+），短脚为负极（-），连接时需注意。
-== '''Specifications''' ==
+注意不要提供超过产品最大电压的电压。
-These are the specifications of the LED discussed in the text. Specifications may vary slightly depending on the manufacturer and model.
+== '''规格''' ==
+这里介绍的LED规格，具体规格可能因制造商和型号而有所不同。
 {| class="wikitable"
 | colspan="1" rowspan="1" |Color
@@ 39번째 줄: / 41번째 줄: @@
 |}
-== '''Required Hardware''' ==
+== '''所需硬件''' ==
 * LED
 * Arduino board
+* Jumper cables
-* Jumper cables
-== '''Connection''' ==
+== '''连接''' ==
-Connect the longer leg through a resistor to a digital pin, and the shorter leg to the Arduino's GND.
+将长脚通过电阻器连接到数字引脚，将短脚连接到Arduino的GND。
-You can connect the long legs together to operate from a single digital pin as shown below, or set different digital pins for each LED if you want them to operate separately.
+如下例所示，可以将长脚连接在一起从一个数字引脚控制，或者为每个LED设置单独的数字引脚以实现独立控制。
 {| class="wikitable"
 | colspan="1" rowspan="1" |Component
@@ 70번째 줄: / 72번째 줄: @@
 [[File:Led 회로.png|center|class=coders70]]
-== '''Example Code''' ==
+== '''示例代码''' ==
 <syntaxhighlight lang="c++" line="1">
 #define led 7 // Use pin 7
@@ 88번째 줄: / 90번째 줄: @@
 </syntaxhighlight>
-=== Execution Result ===
+=== '''执行结果''' ===
 [[File:Led 시연.jpg|center|class=coders100]]