To be fair, your 'agriculural automation system' components likely could be used for an explosive device.
On the other hand, I once had an airport security agent delay me because I had a transparent purple Game Boy Color in my carry-on. He (an older Filipino gentleman) seemed genuinely confused about what it was. It was pre-9/11, coincidentally also in Texas.
Don't worry so much. In addition to the videos of each class being posted online, consider this:
I also spoke with Sam Altman, the president of Y Combinator, one of the best-known providers of first-step seed money for tech start-ups. I asked him if any one school stood out in terms of students and graduates whose ideas took off. “Yes,” he responded, and I was sure of the name I’d hear next: Stanford. It’s his alma mater, though he left before he graduated, and it’s famous as a feeder of Silicon Valley success.
But this is what he said: “The University of Waterloo.” It’s a public school in the Canadian province of Ontario, and as of last summer, it was the source of eight proud ventures that Y Combinator had helped along. “To my chagrin,” Altman told me, “Stanford has not had a really great track record.”
I wonder if this is because Stanford students have better access to other sources of funding and thus less of a need to apply for first-step seed money.