15. System Intergration¶

Files¶

Overview¶

This week I planned out how I would package the electornics of my final project and began testing my code and electronics on a breadboard.

Dog Body Design¶

I used Fusion 360 to design my body since I wanted to laser cut test the body and the parameter button would allow me to use the same design for different material. The first model is very simple, it has 5 holes: two on each long side for the legs and then one in the back for the tail. Besides that everything else is part of my press fit design. I made it about the size of a portable charger since thats how Im currently trying to power my electronics and then about double the width of a portable charger to try and account for the pcb. Heres the fusion design:

And heres the first test cut in cardboard:

Board Design¶

This week I also worked on designing my board for the final project. I took what I learned from Output and Machine Week to make the board. It has 4 pinheaders that are 3x1 for the legs and another 3x1 for the tail servo. I also have two pinheaders that are 2x1. One is for the external power supply and the other is for the rx and tx pinouts for the step responce. Finally I have the ESP32C3 as my microcontroller as it gives easy access to a web server and I have been using them for all the weeks up to now.

Heres the schematic view:

Heres the PCB Design

Reflection¶

This week was very helpful for getting my foot in the door on my final project. I was able to design two crucial componets of my dog and they look pretty good. It wasnt a very difficult week since now im using all the skills I learned during the course of Fab Academy to design my board and body.