- 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);
- }
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但是这样变异上传后灯不亮 求指导啥原因。
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