原因是两个参数没有调合适,一个是防抖动的延时时间delay(200); 这句,开始设置的很小,为50,这个延时太小,不会显示,按下按键后,此时buttonOn == HIGH,ClickTick()函数执行elseif后面的press++,因为延时特别短,按键接通的瞬间,press已经累加到了4次以上,程序里四次以上是没有任何动作的。
格瑞图:Arduino-0008-内置示例-非延迟闪烁 Blink Without Delay 格瑞图:Arduino-0009-内置示例-按钮 Button 格瑞图:Arduino-0010-内置示例-去抖 Debounce 格瑞图:Arduino-0011-内置示例-数字输入上拉 DigitalInputPullup 格瑞图:Arduino-0012-内置示例-状态变更检查 StateChangeDetection 格瑞图:Arduino-0013-内置示例-...
The driver uses a default debounce value defined with theEBUTTON_DEFAULT_DEBOUNCEwhich is set to a safe value of 50 ms, but you can always change that value using thesetDebounceTimemethod. Its parameter is abyte, since a debounce value should never go above 255. ...
There's even a flexi-nub for pressing the reset button! Best of all, it's LEGO brick compatible!... Add to Cart, Plastic Translucent Enclosure for Metro or Arduino - LEGO Compatible $4.95 30 in stock Teensy 3.x Feather Adapter Product ID: 3200 Oh man, is this not the best ...
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digitalWrite(LEDPin, HIGH); 以pinMode()为例,这将使引脚 13 变为高电平或开启。同样,您可以通过将引脚设为低电平来关闭引脚。另一方面,您可以使用digitalRead()读取引脚的当前状态。为此,首先必须将模式设置为输入。int buttonPin = 3; int val; pinMode(buttonPin, INPUT); val = digitalRead(buttonPin);...
void setup() { pinMode(13, OUTPUT); // sets digital pin 13 as output } void loop() { digitalWrite(13, HIGH); delay(500); digitalWrite(13, LOW); delay(500); } For those of you with Uno controllers, if there are no errors, you can click the button to upload the code to your...
instead of 5v, the second is connected to 5v, through a resistor (hence the name pull-up resistor, since it pulls it up to 5v). The input pin still connects to the side with the resistor, but now, it is high when the button is not pressed, and goes low when the switch is closed...
Now the function first checks the button text and if the text is “SCAN” we know we need to start a scan. If the text is not “SCAN” it must be “STOP SCAN” so we stop the scan. Now do the same for the Connect and Disconnect buttons. Combining the two buttons in to one tog...
However, notice that if you press the EN button on the ESP32 board, it resets the boot count to 1 again. You can modify the provided example, and instead of printing a message you can make your ESP do any other task. The timer wake up is useful to perform periodic tasks with the ...