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void setup(){ | |
pinMode(2,INPUT); | |
pinMode(9,OUTPUT); | |
} | |
int last_sw; | |
void loop(){ | |
int sw = digitalRead(2); | |
int light=0; | |
if(last_sw==LOW){ | |
if(sw==HIGH){ | |
if(digitalRead(9)==LOW){ | |
digitalWrite(9,HIGH); | |
} | |
else{ | |
digitalWrite(9,LOW); | |
} | |
light++; | |
} | |
} | |
if(light>=3){ | |
digitalWrite(9,HIGH); | |
} | |
} | |
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