Can you post the code you used to generate that output?
Also, how is the LED wired? Hopefully there's a current limiting resistor in there somewhere.
How does it act if you choose a different pin for the LED?
Can you post the code you used to generate that output?
Also, how is the LED wired? Hopefully there's a current limiting resistor in there somewhere.
How does it act if you choose a different pin for the LED?