This project comes from a joke that has been circulating the internet, “Your server is made of potatoes, right?”

I finished the joke with my friend.

First, we need a full-power potato batteries.

This is followed by a low-power system including a low-power processor, an Eink display, and a low-power Bluetooth gateway.

Then designed a PCB for it.

Testing.

This story ended up providing the source of the idea for the 2022 Tsinghua University admissions video.