I was told if I signed up I could view the source code of the following project:
Distance Finder Based on AT89S52 and Ultra-Sonic Sensors HC-SR04
After signing up, I tried, it claims “You can access only 2 Code/Circuit as a free user. ” Well, I have not accessed anything yet, so I am wondering where my 2 freebies are? It expects me to sign up for $10, but why would I pay money for a site not knowing if it is legit? I appreciate your feedback.