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【Training Camp】DIY an obedient four-legged robot dog

Overview

Introduction: Obedient robot dog

Product introduction: The main control chip used is hi3861, based on Hongmeng system. Supports 16-channel servo control and offline voice control. The forward function has been realized through voice control of the mechanical dog; it can realize the voice command recognition of back, left turn, and right turn, and the forward actions are currently configured.

Chip solution: multi-channel steering gear control chip based on HiSilicon Hi3861 chip and PCA9685, Qiyingtailun single microphone offline speech recognition module CI-C22GS02S

HI3861 firmware code reference case: https://oshwhub.com/itheima/ohosdog

https://gitee.com/genkipi/ohosdog

Video tutorial: https://www.bilibili.com/video/BV1RU4y1D75p/?spm_id_from=333.788

Chipintelli single-mic offline speech recognition module CI-C22GS02S development guidance and firmware reference: https://document.chipintelli.com/Software Development/SDK/CI112X Chip SDK/CI112X Chip SDK/

See the attachment for serial port configuration and command parsing code.

Product core parameters:

Working voltage: powered by 12V lithium battery

Hardware interface: gpio, UART, speaker interface

8 servos use MG90 servos

Dog body structure:

I designed a set myself, but the circuit board I designed did not take into account the problem of the power chip. As a result, the board could not be driven. Due to the limited time of the training camp, the structure of the case design was adopted and made of 3MM acrylic sheets. For information, see https://oshwhub.com/itheima/ohosdog

Attached is a 3D print of the structure you designed. Interested students can refer to it for redesign.

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.

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Update:2025-06-20 03:55:41

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