Can someone please advise me what I am doing wrong here? this should be very simple and when I look at it in the serial monitor everything looks like it is correct but my relay conected to pin 13 just switchs on and off very quickly no mater what I do. I have switched relays and boards same result. I have no clue what is wrong. I added a 5 second delay and still doing the same thing?!?!?
int sen = 3;
int val = 13;
int pond;
void setup(){
pinMode(val, OUTPUT);
pinMode(sen, INPUT);
Serial.begin(9600);
}
void loop(){
pond = digitalRead(sen);
if (pond == HIGH) {
digitalWrite(val, HIGH);
}
else{ digitalWrite(val, LOW);
}
delay(5000);
//Serial.println((String)status+"Valve");
//Serial.println((String)pond+"sen D3");
}
What is connected to pin 3?
Please post a link to the relay, and a wiring diagram.
If you are trying to power the relay from the Arduino 5V, that may be the problem.
I am using a nano not an UNO but this is the basic wire diagram i am using. I have tried with both a solid state and standard relay same results. I am powering the relay off the board, I have done so in the past on other projects without issue, but I will try powering separately and see if that resolves the issue.
Please attach images, and post them in line, as described here.
If the delay() does nothing, then the Arduino is being reset very rapidly. That is almost always due to a power problem.
jremington:
Please attach images, and post them in line, as described here.
If the delay() does nothing, then the Arduino is being reset very rapidly. That is almost always due to a power problem.
That did it jremington it was the power supply guess it finally failed. Thank you!
