pinMode(2, OUTPUT)- 在使用Arduino的一个引脚之前,你需要告诉Arduino Uno R3它是INPUT还是OUTPUT。 我们使用一个名为pinMode()的内置“函数”来执行此操作。 digitalWrite(2, HIGH)- 当您使用引脚作为OUTPUT时,您可以将其命令为HIGH(输出5 V)或LOW(输出0 V)。 结果(Result) 您应该看到LED打开和关闭。 如果...
Choose "Arduino 1.6/1.9", "Arduino/Genuino UNO", "COM3" (Or any other COM that your arduino board is connected), then click the "Build and Upload" button as shown in the following figure: 在Visual Studio 的上方,选择 "Arduino 1.6/1.9", "Arduino/Genuino UNO", "COM3" (或者其他的...
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注意代码 pinMode(2,OUTPUT) - 在使用Arduino的一个引脚之前,您需要告诉Arduino Uno R3它是INPUT还是OUTPUT。 digitalWrite(2,HIGH) - 将引脚用作输出时,可以命令其为HIGH(输出5伏)或LOW(输出0伏)。 输出结果 您应该看到LED亮起和熄灭,如果未看到所需的输出,请确保正确组装了电路,并验证了代码并将其上载到板...
Finally, connect two LEDs at the digital pin 7 and 8 and upload the code on your Arduino board and open the Serial monitor. You will see a counter is running once in 500ms with task name as shown below. Also, observe the LEDs, they are blinking at different time...
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它还将一个LCD连接到Arduino开发板，并在LCD上显示电池电压。所需的材料 ● Arduino UNO开发板 ● ...
Arduino UNO 10 段 LED 条形图 液晶屏 (16*2) 电位器-10k 电阻器(100欧姆-10;330欧姆) 电池(待测试) 连接线 适用于 Arduino 的 12v 适配器 电路图 LED 条形图 LED 条形图采用工业标准尺寸,功耗低。条形按发光强度分类。产品本身仍符合 RoHS 标准。它具有高达 2.6v 的正向电压。每段功耗为65mW。LED 条...
pinMode(2, OUTPUT) − Before you can use one of Arduinos pins, you need to tell Arduino Uno R3 whether it is an INPUT or OUTPUT. We use a built-in function called pinMode() to do this.digitalWrite(2, HIGH) − When you are using a pin as an OUTPUT, you can command it to...
1.arduino uno r3 (microcontroller) - 1arduino 2.led - 1 (optional) 3.resistor(100ohm) - 1 (optional) 4.breadboard 5.connecting wires Step 2: About Arduino Arduino is a computer hardware and software company, project, and user community that designs and manufactures microcontroller ...