What is the CQ EV Mini Cart?
The CQ EV Mini Cart is an electric cart creation kit sold by CQ Publishing.
The kit mainly consists of three parts: ① the car body, ② the motor, and ③ the motor driver.
It can run for more than 30 minutes using a lead battery as the main power source.
If you combine steps ① to ③, it can be assembled in about two days.
Assembling the EV Mini Cart
①Body
It consists of parts such as tires, brakes, and throttle, and can be assembled in about one day.
②Motor
This is a 200W class brushless motor made by hand winding copper wire.
It can be made in about half a day.
③ Motor driver
Resistors, capacitors and other components are soldered onto the printed circuit board.
The control microcontroller used is STM32F202R8.
It can be made in about half a day.
Q&A
Q: Do I need programming knowledge?
A: No knowledge is necessary within the scope of the sample programs , but some knowledge is required.
It is possible to run a kart without programming it yourself.
To write a program, simply connect the microcontroller board to your PC with a USB cable and drag and drop the program.
However, it is essential for troubleshooting and knowing the details of control.
Q: What can you learn from an EV cart?
A: Motor structure and principles, circuits required for driving,
Learn about control programs and more
The CQ EV Mini Cart uses a DC brushless motor. You can learn about how characteristics change depending on how the coil is wound, how motor drivers work, and vector control techniques.