int inp1=3; int inp2=6; int out1=8; int out2=9; int out3=10; int out4=11; void setup() { Serial.begin(9600); pinMode(inp1,INPUT); pinMode(inp2,INPUT); pinMode(out1,OUTPUT); pinMode(out2,OUTPUT); pinMode(out3,OUTPUT); pinMode(out4,OUTPUT); } void loop() { if(digitalRead(inp1)==1){ digitalWrite(out1,HIGH); digitalWrite(out2,HIGH); digitalWrite(out3,HIGH); digitalWrite(out4,HIGH); } else if (digitalRead(inp2)==1){ digitalWrite(out1,LOW); digitalWrite(out2,LOW); digitalWrite(out3,LOW); digitalWrite(out4,LOW); } }