CODEWITHSUNDEEP
arduino
Cabes234
Cabes234

Reputation: 3

Getting wierd characters after a serial print

I am trying to interpret a signal that is sent to my by lazer as a string but I keep getting: 00000000!� instead of 00000000

Here is the code I used to interpret it

String recievePacket(){
char signals [8];
for(int i = 0; i < 8; i ++){
    lightRead = analogRead(lightPin);
    if(lightRead < 50){
        signals[i] = '1';
    }
    else{
        signals[i] = '0';
    }
    delay(50);
}
String signalStr(signals);

return signalStr;
}

Upvotes: 0

Views: 35

Answers (1)

cup
cup

Reputation: 8237

Strings in C are null terminated. Try

char signals[9];
for ...
}
signals[8] = 0;
delay...

Upvotes: 1

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