【Training Camp】Triangular Vegetable Dog

First of all, thank you to Lichuang and Chuanzhi Education for providing training camp training and free component coupon support! ! ! ! !

Official case transmission: https://oshwhub.com/itheima/ohosdog

Hardware: Main control hi3861 IOT module, using pca9685 pwm expansion chip to drive eight-channel servos. In the official case, mpu6050, oled display, and type-c+ch340 power supply download are added. However, since I am a novice, I wonder if it is due to unreasonable power supply design. The debugging serial port cannot communicate when connected to type-c or powered by battery. Fortunately, all the pins of the module have been led out through pin headers, otherwise it would be impossible. Unable to download program☠️☠️☠️.

Mechanical structure: Drawn using SolidWorks, it was the first time I used SW to make a model, and the design was very crude, so I made do with it (the printed dog legs were too thin and soft, so I had to use tape to tie chopsticks to fix them, and they were wobbly.