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feat: add new post 264 "Finally Done" with hardware project documentation and images
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‎src/pages/en/posts/264-Finally-Done.md‎

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date: 2026/04/06
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<img src="https://gw.alipayobjects.com/zos/k/kd/264.jpg" width="800" />
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<small>The cover photo is a shot of my hardware toy finally finished. It was a fun ride, and I wanted to document the whole process in this week's issue. Hope you enjoy reading it.</small>
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> **Recording down-to-earth trending tech I see every week, filtered and published here. Follow this weekly newsletter to get update notifications**
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## New Article
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**How I Deep-Dive into a New Technical Domain in the AI Era**
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<https://tw93.fun/2026-04-06/learn.html>
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A follow-up to the learning writeup from last time, combined with the /learn skill inside Waza, walking through how I actually wrote that previous large model article. Hope it is useful to you.
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<img src="https://cdn.fliggy.com/pic/deep04.png" width="800" />
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## Building a Little Robot Dog
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**April 4: Back to hardware basics. I want to build something that combines software and hardware.**
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All the parts and tools had finally arrived, a whole table full of them. Saving it all for the Qingming holiday to dig in properly.
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<img src="https://gw.alipayobjects.com/zos/k/gu/gOR0gb.png" width="800" />
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**April 4, 9:45 PM: v0.1.0-beta**
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The first sign of life. I was so happy I couldn't describe it.
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<video width="800px" preload="metadata" controls><source src="https://gw.alipayobjects.com/os/k/4s/IMG_0321.mp4" type="video/mp4"></video>
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**April 5, 12:07 AM: v0.1.0-beta1**
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Got the WiFi module, AI module, microcontroller module, and quad-leg module all running together. Tomorrow I'll attach the legs and tune the screen. Going to sleep right now!
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<video width="800px" preload="metadata" controls><source src="https://cdn.fliggy.com/pic/IMG_032613.mp4" type="video/mp4"></video>
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**April 5, 1:45 PM: v0.1.0-beta2**
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Mechanical leg control is working. It can crouch, sleep, and walk. Still rough around the edges, but one of the leg motors from the order looks like it has a problem. Waiting on a replacement part.
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<video width="800px" preload="metadata" controls><source src="https://cdn.fliggy.com/pic/new01.mp4" type="video/mp4"></video>
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**April 6, 10:33 AM: v0.1.0-beta3**
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All four legs are fully under control now. But I burned the screen during debugging. Waiting on shipping. Can't wait to release.
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<img src="https://cdn.fliggy.com/pic/IMG_0379.jpg06.jpg" width="800" />
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**April 8, 11:37 PM: v0.1.0-beta4**
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The replacement screen arrived after work. Got it running, then tuned the temperature, CO2, infrared, and lighting sensors all in one go. Still working on WiFi provisioning. It's basically taking shape now, just need to seal and secure everything.
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<video width="800px" preload="metadata" controls><source src="https://cdn.fliggy.com/pic/IMG_043028.mp4" type="video/mp4"></video>
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**April 11, 11:30 AM: v0.1.0 finally ships 🎉**
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Sealed up the battery pack and tied a few straps around it to keep things from falling apart. Got the WiFi and AI conversation module working too. Using DeepSeek makes it noticeably faster, response speed is decent. Next up: something with more advanced hardware.
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<video width="800px" preload="metadata" controls><source src="https://cdn.fliggy.com/pic/26F9D347-A9C8-4DCC-811A-033887BD049515.mp4" type="video/mp4"></video>
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**A few photos from different angles to mark the moment**
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<table style="margin-top:-20px">
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<img src="https://cdn.fliggy.com/pic/26410.jpg" width="600" />
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<img src="https://cdn.fliggy.com/pic/IMG_050519.JPG" width="600" />
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</td>
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<img src="https://cdn.fliggy.com/pic/IMG_050736.JPG" width="600" />
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<img src="https://cdn.fliggy.com/pic/IMG_050944.JPG" width="600" />
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</td>
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</table>
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## Trending Tools
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**App Store Price: Look up app prices across different countries and regions**
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<https://app.vbr.me>
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A handy little tool. You can check what an app costs in any App Store region, like figuring out which country has the cheapest Claude subscription. I'll probably find a use for this soon.
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<img src="https://cdn.fliggy.com/pic/Pnc8XN58.png" width="800" />
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## Random Thoughts
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**Let me share what I think makes for a genuinely good product experience.**
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There's a followup to my lost drone story. The signal cut out mid-flight, I searched for a long time, couldn't find it. I uploaded the flight logs and DJI couldn't find a clear cause either. Even without being sure it was actually lost, they asked for very minimal proof and, under their Care Refresh service, just shipped me a brand new one. They even threw in a 128GB card in case it would be more convenient. Not once did anyone ask me to explain how it got lost or whether I had gone looking for it.
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That experience made me a real fan of DJI. Their customer service and technical support engineers were professional and clear throughout the whole process. I want to use that story to share what I think makes a good product experience.
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Good product experience is not just what people usually say: great interaction design, beautiful UI, easy to use, no bugs. Those matter, but what matters even more is this: when a user is in a tough spot, you give them something far better than they expected. Something so good that they get excited and tell their friends about it. That is what I consider truly good product experience, the kind that is good for business too. The only thing I worry about is that this culture of trust and simplicity gets taken advantage of by people trying to game the system. It's something we all have to protect together.
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Two other experiences that stood out to me involved Ctrip.
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The first was three years ago during the Spring Festival. Tickets home were nearly impossible to get. They suggested I buy tickets for a few extra stops to guarantee I could board, and I was already grateful for that because nothing else had worked. But then, even better: I was at the movies that afternoon, feeling like everything was handled, when I got a call from an unknown number that I declined. Right after, a text came in saying they had found me a direct option that didn't require the extra stops, and could I please go to the app to confirm. You could tell a real person had made that call and sent that message. It wasn't the few dollars saved. It was the feeling that someone was genuinely working hard for me and delivering better than I had hoped. That is good experience.
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The second happened recently, during National Day. I had gotten two first-class seats but they weren't together, pretty far apart. I had noted I was traveling with an 18-month-old. Then, the day before departure, Ctrip quietly swapped our seats. Just a simple notification: we found an open seat in your carriage and moved you both together. Another moment where someone gave me more than I expected.
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So if you are building a product, think about giving your users something far beyond what they expect in the moments when they really need it, rather than chasing clicks with tricks. When you do that, people will genuinely love your product and become your most loyal fans.
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<img src="https://cdn.fliggy.com/pic/lxEYPC26.png" width="800" />

‎src/pages/posts/264-终于完工.md‎

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date: 2026/04/12
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<img src="https://gw.alipayobjects.com/zos/k/kd/264.jpg" width="800" />
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<small>封面图用于记录我的硬件小玩具终于完工的照片，很有意思，我想着把这个过程通过今天的周刊记录下来，希望有兴趣的小伙伴来看看。</small>
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> **记录每周看到的接地气的潮流技术，筛选后发布于此，觉得不错可关注此周刊，方便获取更新通知**
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## 新文章发布
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**在 AI 时代，我是如何深入学习一个技术领域的**
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<https://tw93.fun/2026-04-06/learn.html>
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把上次的学习总结，集合 Waza 里面的/learn 技能给大伙分享一下，关于上一篇大模型的文章我是如何写的过程，希望对你有用。
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<img src="https://cdn.fliggy.com/pic/deep04.png" width="800" />
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## 聊聊做小机器狗的过程
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**4 月 4 日，重学硬件，期待可以整一个软硬件结合的小玩意**
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这个时候属于买齐了所有的零件和工具，大大小小一桌子，等到清明节假期来好好玩玩。
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<img src="https://gw.alipayobjects.com/zos/k/gu/gOR0gb.png" width="800" />
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**4 月 4 日晚上 9 点 45，0.1.0-beta 版本**
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终于有第一个反应了，别提我有多高兴了，请忽略粗鲁，因为出厂设置就是这样，我要用 Windows 电脑去修改。
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<video width="800px" preload="metadata" controls><source src="https://gw.alipayobjects.com/os/k/4s/IMG_0321.mp4" type="video/mp4"></video>
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**4 月 5 日凌晨 12 点 07，0.1.0-beta1**
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搞定 WiFi 模块、AI 模块、单片机模块、四足模块可运行。明天来加上脚以及调试屏幕效果，立马就睡觉去去！
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<video width="800px" preload="metadata" controls><source src="https://cdn.fliggy.com/pic/IMG_032613.mp4" type="video/mp4"></video>
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**4 月 5 日中午 1 点 45，0.1.0-beta2**
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调好机械腿控制模块，可以趴下睡觉行走，这个狗还是一如既往的粗率，但但但采购的有一个机械腿马达看着有点问题，等待换零件中！
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<video width="800px" preload="metadata" controls><source src="https://cdn.fliggy.com/pic/new01.mp4" type="video/mp4"></video>
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**4 月 6 日上午 10 点 33，0.1.0-beta3**
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腿部控制全部 OK 了，但是现在屏幕应该是我调试过程中烧屏了，等待快递中，期待尽快 Release！
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<img src="https://cdn.fliggy.com/pic/IMG_0379.jpg06.jpg" width="800" />
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**4 月 8 日晚上 11 点 37，0.1.0-beta4**
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晚上下班后屏幕终于到了，一下子调试好屏幕、温度二氧化碳、红线外、灯光等传感器，WiFi 配网调试中，基本出现差不多了，剩下封胶和稳固。
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<video width="800px" preload="metadata" controls><source src="https://cdn.fliggy.com/pic/IMG_043028.mp4" type="video/mp4"></video>
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**4 月 11 日上午 11 点 30，0.1.0 终于完成 🎉**
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把电池包封胶好了，还绑了几根带子防止散架，WiFi 和 Ai 对话模块也调试好了，使用 DeepSeek 模型稍微快一点，对话速度还可以，接下来打算玩高级一点硬件去。
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<video width="800px" preload="metadata" controls><source src="https://cdn.fliggy.com/pic/26F9D347-A9C8-4DCC-811A-033887BD049515.mp4" type="video/mp4"></video>
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**最后拍几张立体照，记录一下**
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<table style="margin-top:-20px">
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<img src="https://cdn.fliggy.com/pic/26410.jpg" width="600" />
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</td>
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</table>
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## 潮流工具
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**App Store Price：可以查询不同国家/地区 App Store 中应用的价格信息**
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<https://app.vbr.me>
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这个工具有点意思，可以查询不同国家/地区 App Store 中应用的价格信息，比如说你可以看 Claude 哪一个区订阅最便宜，后面我应该用得上。
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<img src="https://cdn.fliggy.com/pic/Pnc8XN58.png" width="800" />
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## 随便写写
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**和大伙聊聊我认为的好的产品体验**
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上次飞丢的无人机有后续了，由于飞到中途信号突然消失，找了半天没有找到，上传飞行日志大疆排查也没有排查出来，在他们不确定是否真的飞丢情况下，在提供非常简单证明情况下，随心飞服务，直接寄给我一台全新，甚至担心我使用更方便，还送了我一张 128G 的卡，全程没有任何地方让我解释为啥飞丢了，有没有去找。
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这个事情让我非常喜欢大疆了，服务体验不管是客服还是技术支持工程师在这个过程非常专业清晰，想借这个事情和大伙聊聊我认为的好的产品体验。
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其实产品体验好并不只是大家经常以为，这个产品交互好棒，漂亮，好用，没有 Bug，更更重要的是让用户在着急时刻，你给他提供了一个远比他预期之外的更好体验，让他会非常激动给他的朋友分享你给到他的这次好的体验，这个我认为才是真的好的做生意的服务体验，也很担心这种因为信任所以简单的体验被有些钻空子贪便宜的小人破坏，只能是我们有心的大伙一起去维护这个好的信任关系。
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上两次让我体验非常好的是携程，要不是他是中概股，他应该会是我的持仓大头，体验好在这两次抢火车票的经历。
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第一次是 3 年前，春节回老家抢票，由于票很难买，他给我选的是多买几站确保可以上车，其实这里我就非常感谢他了，因为其他平台都没有抢到，更更更惊喜的是当时下午我还去电影院看电影了，想着这个事情完成了，看电影过程中，接到一个不知道电话我给直接挂断了，结果立马收到一个短信，说先生我们给你抢到了不需要多买几站的方案，担心需要你麻烦去 App 订单页面确定一下，明显看刚刚那个电话也是人打的，这个短信肯定也是那个服务支持同学发出来的，那个时候，并不是那几十块钱，而是我感觉他们服务体验做得真好，真的是在帮你干事，而且比你的预期办的好很多，这个才叫好的体验。
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还有一次在最近国庆回家，也抢到了两张一等座票，不过两个位置不在一块，还挺远的，可能是由于标注了带了一岁半宝宝，关键来了，在出发前 1 天，携程居然自动帮我换座位了，更简单消息通知告诉我，我们找到你这边车厢又有空位了，已经帮你换到一个车厢一起了，这个体验，又是一次比我预期给我带来更好的帮助。
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所以大伙做产品过程中，其实可以给到更多用户在他不好整的时候一个远超出他预期的体验或者帮助，而非骗用户骗点击方式来达成自己的目标，这样用户真的会爱死你了，成为你的产品的死忠粉！
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<img src="https://cdn.fliggy.com/pic/lxEYPC26.png" width="800" />

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