Anduino第一个led实验求指点
int led =13;
void setup() {
// put your setup code here, to run once:
pinMode(LED_BUILTIN, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000);
}
但是这样变异上传后灯不亮 求指导啥原因。
int led =13;
void setup() {
// put your setup code here, to run once:
pinMode(led, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(1000);
} 目测没接通 msold5 发表于 2021-9-1 19:09
目测没接通
哪个位置接线有问题呀? int led =13;
pinMode(LED_BUILTIN, OUTPUT);
问题出在这两句, 引脚指定用的变量名 led , 函数里用的 LED_BUILTIN 。 楼上已经有人帮你改好了,不去试试?
还有就这个实验而言,直接插UNO上就行了,不用面包板和电阻,放心烧不了的。至于为什么,本论坛实验摸爬滚打搞几十个自然明白了
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