The EV Engineer

In this video, I take advantage of the OBD2 port on my roommate's Honda Accord to sniff some CAN packets. The CAN bus is used by all electronic control units (ECUs) in a car to send and receive data from other ECUs. In previous videos, I explain how CAN works, and I show how to set up a virtual machine on your laptop to set up a CAN interface in Linux. I also showed where you can get a CAN to USB converter module.

In previous videos, we covered H-Bridge theory, how to make a KiCad schematic, designed a PCB, and generated Gerber files for an H-Bridge design. I decided to modify the design slightly to contain two H-bridges and header pins for an ESP32 microcontroller. I was able to get all SMD components assembled from jlcpcb.com, and soldered the header pins myself in this video. The code I used to test the driver demonstrates that the motor can spin forwards and backwards at set intervals. Enjoy!

This video demonstrates how to generate fabrication files for a PCB designed in KiCad and order from jlcpcb.com. The process is simple and fast, and one can order custom PCBs directly to their home for 2$ + shipping.