https://www.arduino.cc/en/Tutorial/BuiltInExamples/Button */ (3)全局变量及设置函数 // constants won't change. They're used here to set pin numbers: 常量不会编号。这里用来设置针脚编号 const int buttonPin = 2; // the number of the pushbutton pin 按钮开关的针脚编号 const int ledPin =...
int buttonState = 0; // variable for reading the pushbutton status void setup() { // initialize the LED pin as an output: pinMode(ledPin, OUTPUT); // initialize the pushbutton pin as an input: pinMode(buttonPin, INPUT); } void loop() { // read the state of the pushbutton valu...
// if the LED is off turn it on and vice-versa: if (ledState == LOW) { ledState = HIGH; } else { ledState = LOW; } // set the LED with the ledState of the variable: digitalWrite(ledPin, ledState); } } [Get Code] 更多 setup() loop() millis() Button - 用一个按钮来控...
* Note: on most Arduinos there is already an LED on the board attached to pin 13. created 2005 by DojoDave <http://www.0j0.org> modified 30 Aug 2011 by Tom Igoe This example code is in the public domain.http://www.arduino.cc/en/Tutorial/Button*/intbuttonState =0;voidsetup() {...
This example code is in the public domain.http://www.arduino.cc/en/Tutorial/Debounce*///constants won't change. They're used here to//set pin numbers:constintbuttonPin =2;//the number of the pushbutton pinconstintledPin =13;//the number of the LED pin//Variables will change:intled...
从数字针 9 连接 LED 并通过 220 欧姆电阻接地。 created 1 Nov 2008 by David A. Mellis modified 30 Aug 2011 by Tom Igoe 创建时间创建人修改时间修改人 This example code is in the public domain. 此示例代码位于公共域中。 https://www.arduino.cc/en/Tutorial/BuiltInExamples/Fading ...
- Note: on most Arduinos there is already an LED on the board attached to pin 13. created 2005 by DojoDave <http://> modified 30 Aug 2011 by Tom Igoe This example code is in the public domain. https://www.arduino.cc/en/Tutorial/BuiltInExamples/Button ...
* Note: on most Arduinos there is already an LED on the board attached to pin 13.created 2005 by DojoDave <http://www.0j0.org> modified 30 Aug 2011 by Tom Igoe This example code is in the public domain.http://www.arduino.cc/en/Tutorial/Button */ int buttonState = 0;void ...
Connect one of the button pins to pin 11 through a ~ 5 kOhm resistor, and the other pin to ground (GND). Press the button. You can now use ‘digitalWrite’ or other other functions to switch on an LED, relay, adjust PWM duty cycle (for example, increase the brightness of a lamp)...
Now, simply run your Python code and see the built-in LED blink on your Arduino board! You can find all the available functions on thepyfirmata documentation website. Going further with Arduino Firmata With this tutorial you should have a simple, but good overview of how to use Firmata with...