Hello, few years ago, I bought a few bluefruit EZ-link. Ha!EZ my butt. I remember that time, I had trouble uploading my sketch. I never figure out why, I fell back to use the clumsy USB cable. Now I revisit the issue for a new project. I hooked it up correctly, passed both loop back test and DTR/DSR test. when I tried to upload a sketch, I keep getting these two errors:
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
What gives? Thanks.