Let’s stop for a moment and pause to consider the smart bulb. Imagine going back 20 years and telling yourself that people will be putting computers capable of acting as web servers into light bulbs just so they can control them from their telephone instead of hitting the switch. The whole thing seems crazy — but its great, because it enables hacks like this one where [RickOOOOOO] takes a commercially-available ESP32 smart bulb, and hacks it into a local file server and digital library for banned books.

The word “banned” gets bandied about a lot — but assured, there’s nothing getting served up by [RickOOOOOO]’s bulb that’s going to help somebody will ill-intent build an improvised explosive device.  No, at least as conceived here, it appears to be full of easily-available e-books that were pulled from school libraries in the USA, which may-or-may not meet your personal definition of ‘banned’. Whatever you want to call them, we appreciate the idea that a student could hypothetically replace one of the bulbs at school with a hacked version serving up that sort of content. a bulb in such a school with a bulb hacked to host that sort of content–in minecraft, naturally.

In any case, the hardest part of the hack was carving the ESP32C3 in the bulb out of the IoToreo bulb enough to access it. Unfortunately having done so, [Rick] wasn’t able to get an SDcard interface soldered on, so he’s stuck with just 4MB for books and webserver. That means only a few epubs can fit on the bulb, but it’s better than those books being unavailable.

Like the solarpunk message board we featured recently, which also ran on an ESP32, the bulb broadcasts a public network that uses a captive portal to take you to the web interface of the library. From there, users can browse books– including learning from where they were banned and why–and admins can access a password-protected control panel. One neat work-in-progress feature on the control panel is that the bulb can still be used as a smart bulb, so you can try and match the light to its surroundings. In Minecraft, because of course we would never encourage kids to change light bulbs. Perish the thought!

Speaking of Minecraft, you can run a server on a lightbulb, too. Or DOOM, because of course even the light bulbs run DOOM now. What a time to be alive!

让我们暂停片刻，思考一下智能灯泡。想象一下回到20年前，告诉自己人们会把能充当网络服务器的计算机塞进灯泡里，只是为了能用手机控制它，而不是去按开关。整件事听起来很疯狂——但也很棒，因为它催生了像这样的黑客改造：[RickOOOOOO] 将一款市售的 ESP32 智能灯泡改造成了本地文件服务器和禁书数字图书馆。

“禁”这个词被频繁使用——但可以肯定的是，[RickOOOOOO] 的灯泡里提供的任何内容都不会帮助有恶意的人制作简易爆炸装置。不，至少按这里的构思，它似乎装满的是在美国学校图书馆被下架的、随处可得的电子书，这些书是否符合你对“禁书”的个人定义则见仁见智。不论你怎么称呼它们，我们欣赏这个想法：学生可以偷偷把学校里的一个灯泡换成改装过的版本，用来提供这类内容。在《我的世界》里，自然如此——我们当然不会鼓励孩子们去换灯泡，想都别想！

无论如何，这次改造中最难的部分是将灯泡中的 ESP32C3 从 IoToreo 灯泡中挖出来并接上。不幸的是，做完这一步后，[Rick] 没能焊上 SD 卡接口，所以他只能依靠仅有的 4MB 空间来存放书和网络服务器。这意味着灯泡里只能装下几本电子书，但总比这些书完全无法获取要好。

和我们近期介绍的太阳能朋克留言板一样（它也是运行在 ESP32 上），这款灯泡会广播一个公共网络，通过强制门户带你进入图书馆的网页界面。在那里，用户可以浏览书籍——包括了解这些书是在哪里被禁以及为什么被禁——管理员则可以访问受密码保护的控制面板。控制面板上有一个很酷的功能（仍在开发中）：灯泡仍可作为智能灯泡使用，因此你可以尝试让灯光与周围环境匹配。在《我的世界》里这么做，因为我们当然不会鼓励孩子们去换真正的灯泡——想都别想！

说到《我的世界》，你还可以在灯泡上运行《我的世界》服务器。或者运行《毁灭战士》，因为现在连灯泡都能跑《毁灭战士》了。多么令人振奋的时代！