走马观花

【Training Camp】Bionic Robot Wolf Legs

Overview

For the first time, I participated in the training camp organized by Lichuang and Chuanzhi, and made a robot wolf leg (little bell). Based on the OpenHarmony open source Hongmeng system development, the choice is to use 12V lithium battery for power supply, L7805 to stabilize the 5V, 5V to 3.3V module to power the hi3861, and then the chip is used to power the multi-channel servo control board of the hi3861 and PCA9685, and is burned by compiling the code. In order to realize the rotation of the servo to move and position the coordinate points, it can realize functions such as writing and drawing graphics.

Physical map:

USB to TTL:

Control interface:

Compilation interface:

Burn in interface:

The open source of Xiao Jian Zhong is here: https://oshwhub.com/itheima/ohosdog_copy

Related information Baidu network disk: https://pan.baidu.com/s/1OztwrWfjke83tJw3oP9gRQ?pwd=qu2s

Complete video explanation: https://space.bilibili.com/430536057?spm_id_from=333.337.0.0

Since I just learned programming, I can't compile the desired content independently yet, so I used open source code, and it was the first time I came into contact with servos. I bought 4 servos and got 2 wrong ones (360-degree ones), which made it impossible to completely realize the painting. A circle. Remember that the correct servo used this time is 180 degrees.

In addition to the components provided in the BOM table, you need to prepare a 12V power supply, a 5V to 3.3V module, a USB to TTL converter, a real servo and a small clock (can be 3D printed).

Design Files

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Update:2025-06-30 03:48:50

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