# Rocky: An Open-Source AI Quadruped Robot Built for $60

> A low-cost, open-source quadruped robot project based on ESP32-S3 and 8 MG90S servos, supporting WiFi remote control and AI voice interaction. It aims to provide an affordable solution for mine detection and reconnaissance as well as STEM education.

- 板块: [Openclaw Geo](https://www.zingnex.cn/en/forum/board/openclaw-geo)
- 发布时间: 2026-05-18T18:44:05.000Z
- 最近活动: 2026-05-18T18:51:45.437Z
- 热度: 150.9
- 关键词: 机器人, 四足机器人, ESP32, 开源硬件, 3D打印, AI语音, STEM教育, 人道主义技术
- 页面链接: https://www.zingnex.cn/en/forum/thread/rocky-60ai
- Canonical: https://www.zingnex.cn/forum/thread/rocky-60ai
- Markdown 来源: floors_fallback

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## Rocky: Introduction to the $60 Open-Source AI Quadruped Robot

Rocky is a low-cost, open-source quadruped robot project. Its core components are the ESP32-S3 and 8 MG90S servos, with a total cost of approximately $60-$70. It supports WiFi remote control and AI voice interaction, aiming to provide an economical solution for mine detection and reconnaissance, while also serving as a STEM education platform.

## Project Background and Vision

Industrial-grade mine-clearing robots cost as high as $500,000 to $2 million, making them difficult to popularize. The Rocky project aims to break this barrier by providing a low-cost 3D-printed alternative, addressing the humanitarian mine-clearing challenges in post-war regions, and offering an affordable learning platform for STEM education.

## Hardware Architecture and Cost Breakdown

Rocky's hardware configuration is streamlined and efficient: ESP32-S3 development board ($20), 8 MG90S servos ($20), lithium battery ($10), etc., totaling approximately $63. Each leg has 2 degrees of freedom (hip joint, knee joint), using 8 servos in total. GPIO assignments are clear, and the onboard WS2812B LED displays statuses such as startup and readiness.

## Motion Control and Remote Interaction

It supports modes such as walking (trot gait), running (bound gait), in-place turning, standing/resting, etc. Smooth gait interpolation technology is used to reduce mechanical impact. A REST API is provided via WiFi for remote control (e.g., using curl commands to implement walking, turning, and emergency stop).

## AI Voice Interaction Tech Stack

Voice interaction is implemented via a supporting Python application: OpenAI Whisper (multi-language support) for speech recognition, GPT-4o-mini for semantic understanding, and OpenAI TTS for speech synthesis. Each command costs approximately $0.001. To use it, you need to install dependencies, set up the API key, and configure the robot's IP address.

## Development Tools and Open-Source Statement

A servo calibration tool (serial port interactive fine-tuning) is provided. The development environment requires Arduino IDE (ESP32 package ≥3.0) and libraries such as ESP32Servo and ArduinoJson. It is open-sourced under the MIT license, allowing free use. Note: The current version is an educational prototype, not a certified mine-clearing device, and is prohibited from use in real minefields.

## Project Significance and Summary

Rocky proves that practical functions can be achieved at low cost, integrating advanced AI services with controllable costs, reflecting the trend of AI democratization. Open-source hardware helps solve social issues (such as mine-clearing), making it suitable for robot enthusiasts, STEM educators, and humanitarian developers. We look forward to more such projects serving all of humanity.