On March 13, a video of a freshman from a university in Guangzhou, Guangdong, inventing an automatic dormitory door went viral.
Classmate Chen said that it took nearly three days for his roommate to do a little bit every day from designing the program to completing the assembly. He also said he plans to further improve the device and add switches to save power.
Netizen: Master!
Original title: Freshman boy invents automatic dormitory door with credit card Netizen: Milk box is the soul of assembly
Source: Comprehensive @Toutiao News Netizen Comments
Process Editor: tf004
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