Im trying to program 2 HC 05 bluetooth module to replicate a project i found online but when trying to run the AT code on the 2nd module my serial monitor keeps showing up blank. The light on the HC 05 has been flashing so i assume my wiring has been correct, and it worked perfectly when I tried it with the 1st HC 05. Any suggestions?
a couple:
- post the code and the wiring / power
- explain how the Serial monitor is configured
Could be a code problem or how you have the modules wired.
Post the website of this project 
You seem to have posted a screen shot of part of the code only.
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