Now, one year later, Mike Wimmer, of Salisbury, is getting ready to graduate high school and college -- in the same week.
Wimmer completed four years of school in one year -- two years of high school and a two-year associate's degree. He will graduate from Rowan-Cabarrus Community College on May 21, and from Concord Academy High School on May 28, where he is valedictorian.
But this wasn't always Wimmer's plan, he said.
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The student was taking dual enrollment classes and realized that at the pace he was going, he just needed a few more classes to get his associate's degree by his high school graduation.
He said his GPA at Rowan-Cabarrus Community College is 4.0, while his high school GPA is 5.45.
A love of robotics
Despite being several years younger than his classmates, Wimmer said he gets along well with them -- and was even nominated to Homecoming Court last year.
Wimmer, who has an interest in robotics, told CNN that he's "the math and science guy." He's always had an affinity for technology -- he got his first iPad when he was 18 months old, and wondered how it worked.
He learned almost all of his programming and robotic knowledge through trial and error and online videos, according to his website, Next Era Innovations.
He also created his own startup, called Reflect Social, which "combines popular social media platforms with Internet of Things (IoT) devices, providing a new dynamic social experience," according to its website.
Wimmer's goal for the startup is to simplify how smart home technology works, with the ultimate goal to help others.
"My entrepreneurial goal is to build technology that enables people to live better lives," he said.
What the future holds
Wimmer's parents said they are proud of the person their son has become.
"If one door's locked, he'll find out another way around to figure out how to accomplish his goals," his mother, Melissa Wimmer, told CNN.
With graduation just a few weeks away, Wimmer said he's weighing many options for his next steps.
Those options include job offers in and out of the United States, more school, or a fellowship that will allow him to grow his startup.
But he said he wants people to know that he's still a kid -- he makes time for normal kid activities, such as playing basketball and building legos.
"A lot of people think I've given up my childhood or somehow lost it," Wimmer said, "and I say to them that I'm having the time of my life."