张三叔

【Training Camp】A dog who can’t think of a good name but can dance

Overview

[Foreword] As a graduate student, logically speaking, you should not focus on other things. But I think no matter how busy you are, you should spend some time doing the things you love. In fact, I ~~love~~ electronics as much as ever. This summer training camp was full of twists and turns for me. Because of the tight schedule, I basically only had about an hour to complete the work every day. During this period, we experienced unexpected situations such as 3D printing failure, program burning failure, chip scrapping, etc. But in the end, I still made a work that is eye-catching. Through the actual practice of this training camp, I learned a lot in circuit design and system development. I would like to thank Lichuang, Chuanzhi Education, Mo Gong, Xiao Gong, Orange Sister and other great leaders.

【text】

1.Project Introduction

This project uses the HI3861 module and PCA9685 to drive 8-channel servos to realize a movable mechanical dog. It performs digital signal processing on music based on librosa, obtains the music beat, and controls the dog to rhythm with the music.

2. Hardware system

Using the HI3861 module as the control core, the 3861 drives the PCA9685 through the IIC protocol to generate 16 PWM waves, thereby driving the steering gear.

The power supply section uses LM1084S to regulate the voltage to 5V to provide power for the servo, and uses AMS1117 to generate a 3.7v voltage to power other chips in the circuit.

A DIP switch is used to pull up the address chip selection pin to realize the address chip selection of the PCA9685.

Physical map

3.Software system

a. Gouzi’s control logic is mainly based on Chuanzhi’s official BIN firmware.

b. Use librosa in pycharm to perform digital signal processing on music, find the rhythm area according to changes in energy intensity, track the beat in the rhythm area, and determine the stuck time.

c. Calculate the deflection angles of each servo in different postures through the DogLeg-v1.4 and DogActionGenerater software officially provided by Chuanzhi, and generate a JSON file for controlling the dog's movement.

d. Create a new thread to play music, filter the stuck time and send a post request through requests. The request link is as follows:

http://192.168.10.1/dog/cmds

4.3D model

File link (follow the official drawing): Link: https://pan.baidu.com/s/1Ay0IFilligN4p1Wz56AK_A Extraction code: r7m8

5. Related resource links:

Python source code: Link: https://pan.baidu.com/s/1tTfujVHSGvvMHwTKb0xENg Extraction code: 2x24

3D model: Link: https://pan.baidu.com/s/1baFttKHeYNBcucRzyE5yHQ Extraction code: xolz

Official firmware: link: https://pan.baidu.com/s/1onis8fFInbxuFPrm_EbhEA extraction code: 4agx

6. Station B demo video:

https://www.bilibili.com/video/BV12r4y1j7Lo?spm_id_from=333.999.0.0&vd_source=f4e85234aa4973d783925dcf40ebbf16

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-08-04 20:41:26

What is the secret to keep your spectrum analyzer from getting sick?
Are you still worried about the maintenance of your company's test instruments? I believe that many users have this worry. For device testing, accuracy, repeatability and reliability are crucial. Xi'a
Newbie help.
This circuit is to restart the power bank from sleep mode. After I added the circuit at the back end, the power bank voltage in sleep mode will be pulled down to 0.8V. This circuit will not work. Plea
MSP432 driver function address
When I was looking at 432 programs recently, I suddenly found a problem. For example, when calling a library function, such as MAP_WDT_A_holdTimer(); this statement is a macro definition, pointing to
DC and dynamic characteristics have all been evaluated, so what should I evaluate?
You have all tested the DC characteristics and dynamic characteristics. Let me tell you my feelings. The test board is quite small. I found a resistor on the back. After measurement, the resistance va
Share a TI Da Vinci series support website
[i=s]This post was last edited by qwqwqw2088 on 2020-4-6 17:37[/i]This website has relevant information about TI's Da Vinci series, including schematics and Gerber files of related development boards.
【Low Power】Low Power FPGA Application Paper

Datasheet More

Circuits More