I did an electric contest when I was an undergraduate. Although mainly engaged in the work of single chip microcomputer and control algorithm, I also participated in the design of the whole circuit scheme. Let me introduce the experience of hardware.

Circuit part:

Control problems are not like signal problems and power problems. Most of the time, you don't need to build circuits from amplifiers. More is to use ready-made module circuits, so the key is to know what they can do and how to use them.

For example, how to connect various sensors, how to use the driving circuit module, how to control the motor and so on. At least know the parameters of each module.

One more thing, weld more plates and practice your hands. Don't short-circuit everywhere then. Conditional PCB is also a big advantage, and its reliability will be higher.

Mechanical part:

Another part of the control problem is the design of mechanical structures, such as cars and pendulums. At that time, we were a pendulum, and the mechanical structure was made up of metal connectors, 3D printing and pvc materials.

A 3D printer is a good thing. If you have a 3D printer, you can save a lot of energy. But this requires you to have basic 3D modeling ability and hands-on ability (the accuracy of 3D printing may not be enough and you need to rework it manually).

Pre-competition preparation:

First of all, you should have some design experience. You can do a problem over the years and get familiar with the general process. I was called to take part in the competition halfway, but I didn't take part in the training of the electric competition. However, I have worked as a mentally retarded car before and have some experience.

Secondly, there will be a list of equipment before the competition, which contains the equipment generally needed for this competition. Just because of the electric competition for a few days.