我最终落地的方案是：Raspberry Pi 作为主控和服务器，通过 UART 接 RS485 总线，总线上挂多个 PZEM-004T，用 Modbus-RTU 轮询采集，数据写进时序数据库，前端用 Grafana 或者自建面板展示。软件层我用了 Orbit OS 这套轻量化的设备管理思路来组织服务。整套东西跑下来，成本可控，数据完全自主，扩展性也够。
很多人家里抽屉深处都躺着几台旧的三星手机，屏幕可能碎了，或者系统卡得跑不动现在的热门游戏，但扔了又觉得可惜。其实，这些旧设备拥有完整的处理器、内存、存储空间，甚至自带电池，这让它们成为搭建小型家庭服务器的绝佳底座。 为什么旧手机能当 ...
I didn't expect this little box to become responsible for my entire house.
A Raspberry Pi has long been a popular option for home projects because these single-board computers are highly customizable ...
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Geekworm's Supercapacitor UPS HAT gives the Raspberry Pi 5 just enough backup power to shut down safely and avoid SD card corruption.
This article was researched using 15 sources. See our methodology and corrections policy. A Raspberry Pi costs anywhere from $5 for a Pico 2 microcontroller to $430 for a Raspberry Pi 500+ Desktop Kit ...
Learn how Tailscale SSH lets you securely access Raspberry Pis, home servers, and other devices through a browser without IP ...
We had some fine people pop round our home to provide the sales pitch for a professionally fitted home alarm system. This ...
Although Android is essentially just another Linux distribution, most people only experience it in the form of the rather restrictive and proprietary versions found on smartphones, tablets and ...
Ayush Pande is a PC hardware and gaming writer. When he's not working on a new article, you can find him with his head stuck inside a PC or tinkering with a server operating system. Besides computing, ...
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