5个LED灯通过串联的220 ohm电阻连接到数字引脚pin 2,3,4,5,6。 为了使程序工作,你的开发板需要连接到电脑。在Arduino IDE上打开串口监视器,并且发送字符 a,b,c,d,e来点亮相应的LED灯,或者其他东西来关闭它们。 图为Fritzing软件绘制。 原理图 样例代码 /* Switch statement with serial input Demonstrates th...
Use Arduino to Switch Power On and Off! - Electronics For YouEFY News Network
The characters a, b, c, d, and e, will turn on LEDs. Any other character will turn the LEDs off. The circuit: * 5 LEDs attached to digital pins 2 through 6 through 220-ohm resistors created 1 Jul 2009 by Tom Igoe This example code is in the public domain. http://www.arduino.c...
Example - LED On Off Example - LED Toggle Example - Multiple LED Example - LED Array Arduino - Output Library Example - 01.On Off Example - 02.Toggle Example - 03.Single Blink Without Delay Example - 04.Single Blink Change Frequency Example - 05.Multiple Blink Without Delay Example - 06...
When you push the button sometimes it will toggle and sometimes it won't.If you don't see the problem then you got lucky - trust me; if you don't correct it you'll see it later when you are not expecting it! More than likely you'll have the LED go off and on randomly; ...
Example - LED On Off Example - LED Toggle Example - Multiple LED Example - LED Array Arduino - Output Library Example - 01.On Off Example - 02.Toggle Example - 03.Single Blink Without Delay Example - 04.Single Blink Change Frequency Example - 05.Multiple Blink Without Delay Example - 06...
LED is switched on/off indefinitely. Serialprint says mainSwitchcounter1? and "1" digitalWrite(ledPin1, HIGH); Serial.println("mainSwitchcounter1?"); Serial.println(mainSwitchcounter); delay(2000); digitalWrite(ledPin1,LOW); break; case 2: digitalWrite(ledPin2, HIGH); Serial.println("main...
LilyPad Arduino Switch用户手册说明书 A rduino L ilypad S witch User Manual Description:This is a simple ON/OFF switch for the LilyPad. When the switch is in the ON position it is closed and when it is in the OFF position it is open. Use it to trigger behavior in your programmed ...
You can also wire this circuit the opposite way, with a pull-up resistor keeping the input HIGH, and going LOW when the button is pressed. If so, the behavior of the sketch will be reversed, with the LED normally on and turning off when you press the button.If you disconnect the ...
Infineon XMC1100 Boot Kit and PROFET™+ 24V Shield for Arduino II Share 0:00 11:01 In this video we demonstrate how to switch on and off different loads such as lights and fans. The combination of the Infineon XMC1100 Boot Kit and 24V Protected Switch ...