We just pushed the V1.2 of the Beechat Crank to our GitHub @beechatnetwork2 Beechat Crank is a human-powered, open-hardware, fully-waterproof, electricity generator. The project was born out of the need to power electronics in all off-grid scenarios. We needed a way to power our devices in all weather conditions, and making a human-powered generator meant that problem could be solved. When we looked for a solution, we didn't find what we were looking for, so we decided to make it, and make it open source! https://github.com/BeechatNetworkSystemsLtd/BeechatCrank/ Features High power (3A) USB-C IPX8 output 18650 3600 mAh battery (LG M36) Charging time of 4 hrs 24 min. to full charge with 10% efficiency loss at 4.5 Watts. Overcharge protection Parts Beechat Crank is composed of the main device, which we call the Heart. It contains the battery, the generator and all the electronics (the handle is detachable) The Pedal Case is an assembly which the Heart can be attached in. which dramatically speeds up the charging from 2.5 hours to 25-30 minutes. This is achieved with reduction gears to, with the same revolutions per minute, generate more electricity. Generator part We have chosen the 35L048B1B motor with a mass of 88 grams, giving us us 450 mA for each phase of the coil and works at 5V. The wire leads are connected via female Molex connectors to the charging PCB board. New modifications: * Added a Molex type connector to the PCB to connect the motor. * The Zener diodes were changed, by means of a rectifier bridge. * A new and improved Texas Instruments brand battery management chip was selected. * Added a boost converter to allow different voltage batteries. * New Portescap brand two-phase generator with 90% efficiency and peak power of 4.5 Watts was selected. #crank#beechat
静态网站悖论 个人网站的两种不同实现方式：一种是复杂的内容管理系统（CMS），另一种是简单的静态 HTML 文件。文章指出，尽管大多数普通用户倾向于使用复杂的解决方案（如 WordPress），但实际上，只有少数专业软件工程师能够选择更简单的静态网站。 via HackerNews 2024 10 09 前两天刚好听朋友说 square space 已经涨到了近乎搞笑的 $25 月费，做不用来盈利的个人博客实在难以 justify。这篇文章中吐槽得很在点子上： normal users are stuck with a bunch of greedy clowns that make them pay for every little thing, all while wasting ungodly amounts of computational power to render what could have been a static website in 99% of cases. 普通用户被困在了一群屁大点功能都要收费的贪婪小丑手里，与此同时浪费着人神共愤额度的算力来渲染 99% 的情况下都可以作为静态的网站。 当然原文中说的“只有少数专业软件工程师才能选择更简单的静态网站”略微夸张并不认同，因为静态站至少是比 self-host 的动态 CMS 少太多维护了。我的 backlog 里也一直躺了篇安利新手用静态站并拉踩 WP 的文，不过网上这种文已经有无数了也还是拦不住前赴后继往各种 CMS 的坑里冲的新手，觉得写了又有什么意义呢就还搁着没写。（当然迟早会像以前反复造的无数轮子一样被废话欲战胜的 but not today） #indieblog#newletter
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Last weekend we presented the Beechat Rune device for the very first time, as part of the Volla Community days in Germany. Featuring 4 simultaneous streams, capable of audio and video streams with next-gen CRYSTALS cryptography, the Beechat Rune is a perfect addition to privacy-focused systems. @beechatnetwork2 #beechat#mesh#p2p