会走会说话的机器人课程 / WalkerBot

About 会走会说话的机器人课程 / WalkerBot

【中文】
会走会说话的机器人课程 —— 一个周末、约 40 美元的零件，做出一台真能走、真能开口说话的四足机器人。写给完全没焊过、没编过程的人：每个零件都带搜索关键词和参考价，每一根线都画在一张图上，Arduino 程序是跑通过的、直接给全文。

· 20 课分 6 个模块，一步一步来：认识机器人 → 组装身体 → 让它走 → 让它说 → 合起来控制 → 展示与变现
· 零件表带型号、数量、约价和搜索关键词，并告诉你哪些套件会缺件、买之前要确认什么
· 一张接线图看完全部：电池、Arduino、四个舵机、DFPlayer 语音模块和喇叭
· 两段动画图示讲原理：对角步态是怎么两组交替的，舵机是怎么在 60/90/120 度之间摆的
· 代码全部给全，每段都能一键复制：装软件烧通第一次、驱动舵机、对角步态、转弯调速、语音触发、眨眼、走说合一
· 每个坑都点了名：四个 SG90 不能用 Arduino 的 5V 引脚供电（一走就重启就是这个原因）、microSD 卡必须 FAT32、DFPlayer 的 RX 要串 1k 电阻、共地
· 进阶两课：HC-05 手机蓝牙遥控、HC-SR04 超声波自动避障（带分压接法）
· 常见问题表：十个最典型的毛病对应最可能的原因和处治办法
· 拍演示那课：拍之前要核对的七件事，拍三条素材的拍法
· 变现那课讲实话：套件、工作坊、定制演示机三条路各自的账怎么算，以及为什么儿童班最赚钱也最费手续
· 24 条中英对照术语表，台子边上随时搜
· 12 题测验，答对 10 题生成可打印证书
· 手机上一键装成 App，或者下载成单个离线文件，飞行模式也能看；每一页左上角都有返回键
· 中英双语随时切换，整页可以朗读
· 进度存在你自己手机里，离线也能用，可加到手机主屏（PWA），自动更新到最新版
· 免费：前 5 课 + 零件表 + 术语表
· 专业版（一次购买）：其余 15 课、完整程序、测验与证书、三份可打印清单、无广告
· 专业版 US$49.99（PayPal 一次付款）：付款后把附的解锁码填进 App 即可解锁，下次打开仍然有效
· 不需要焊接，不需要 3D 打印机，任何四腿底盘都能用；没有照片视频素材也能拍出能看的演示

【English】
A 20-lesson build course for a real four-legged robot that walks and talks - one weekend, about US$35-60 of parts. Written for someone who has never soldered or programmed: every part is named with its search keyword and rough price, every wire is on a single diagram, and the Arduino sketch is tested and included in full.

· 20 lessons across 6 modules, in build order: know your robot, assemble the body, make it walk, make it talk, combine and control, show and earn
· A parts table with model, quantity, rough price and the exact search keyword for every line - plus what to check before you buy a kit
· One wiring diagram for the whole build: battery, Arduino, four servos, DFPlayer voice module and speaker
· Two animated diagrams: how the diagonal gait alternates two pairs, and how a servo swings between 60, 90 and 120 degrees
· Every line of code, with a copy button on each block: first upload, driving the servos, the walking gait, turning and speed, triggering the voice, blinking eyes, and walking and talking together
· The traps called out by name: four SG90s cannot run off the Arduino 5V pin (that is why it resets the moment it walks), the microSD must be FAT32, the DFPlayer RX needs a 1k resistor, and everything must share a ground
· Two upgrade lessons: HC-05 phone control over Bluetooth, and HC-SR04 ultrasonic obstacle avoidance, with the voltage divider
· A fault table: the ten most common problems, the most likely cause of each, and the fix
· A filming lesson: the seven things to check before you press record, and how to shoot three takes that edit together
· An honest income lesson: kits, workshops and custom demo robots, how each one actually pays, and why kids clubs are the most profitable and the most paperwork
· A 24-term glossary in English and Chinese, searchable at the bench
· A 12-question quiz and a printable certificate at 10 out of 12
· Install it to your home screen, or download one offline file and read it in aeroplane mode - there is a back button on every page
· Switch between English and Chinese at any time, and have any page read aloud
· Progress is saved on your own device, works offline, installs to your home screen, auto-updates
· Free: the first five lessons, the parts table and the glossary
· Pro (one-time purchase): the other 15 lessons, the full sketch, the quiz and certificate, three printable checklists, and no ads
· Pro is US$49.99, paid once through PayPal: enter the unlock code from your payment confirmation and it stays unlocked on that device
· No soldering and no 3D printer required - any four-leg chassis works, and no photos or video footage are needed to film a demo that reads well