按钮检查器开源分享

描述

使用此项目了解更多关于您的按钮的信息！

编码：

#define buttonPin 2
#define ledPin 13
bool state = 0;
bool lastRead = 0;
void setup() {
 // put your setup code here, to run once:
Serial.begin(9600);
pinMode(2,INPUT);
pinMode(13,OUTPUT);
}
void loop() {
 // put your main code here, to run repeatedly:
state = digitalRead(2);
if(state != lastRead)
{
 Serial.println(state);
digitalWrite(ledPin,state)
 lastRead = state;
}
}

----------------------------------

#define buttonPin 2 

将单词“buttonPin”定义为数字 2，所以当你写“buttonPin”时 = 当你写 2

#define ledPin 13

将单词“ledPin”定义为数字 13 所以当你写“ledPin”时 = 当你写 13

bool state = 0; 

按钮的状态

bool lastRead = 0; 

按钮的最后读数

void setup() {
 // put your setup code here, to run once:
Serial.begin(9600);
pinMode(buttonPin,INPUT); 
}

Serial.begin(9600);

定义串行监视器

pinMode(buttonPin,INPUT); 

定义“buttonPin”模式

void loop() {
 // put your main code here, to run repeatedly:
state = digitalRead(2);
if(state != lastRead)
{
 Serial.println(state);
digitalWrite(ledPin,state)
 lastRead = state;
}
}

state = digitalRead(2);

将按钮的读数置于“状态”

if(state != lastRead)

如果“状态”不是“lastReading”

Serial.println(state);

将“状态”打印到串行监视器中

digitalWrite(ledPin,state)

将按钮的状态写入引脚 13

lastRead = state;

使“lastRead”=“状态”值