PID_RelayOutput.ino needs to set 'pinMode(RelayPin, OUTPUT);'?

[abetusk]

Does the 'RelayPin' the PID_RelayOutput.ino example need to be set to output in the 'setup' function?

[sjunnesson]

I had the same issue when trying this example. should be a

pinMode(RelayPin,OUTPUT);

[kelna2]

I ran into the same thing. Wish I had thought to look here instead of trying to trouble shoot it for the past couple hours.

like sjunnesson said, simple fix just add:
pinMode(RelayPin, OUTPUT);