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20元体验物联网——简易环境监测站 | Visoar
https://visoar.top/post/20-yuan-ti-yan-wu-lian-wang-jian-yi-huan-jing-jian-ce-zhan/
在本例中,将使用廉价开发版,及通用物联网云平台带领大家搭建一个环境温湿度监测站。
少啰嗦,先看东西
〇 准备清单
开发版
这里我选择的是一款叫做 NodeMCU 的开发版。这个是非常好用方便且便宜的物联网开发板,自带 USB 转串口芯...
关于 | Visoar
微信小程序中使用 MQTT 协议 | Visoar
https://visoar.top/post/wei-xin-xiao-cheng-xu-zhong-shi-yong-mqtt-xie-yi/
由于小程序的限制,仅允许备案域名通过加密协议连接(https 和 wss)。
刚好,MQTT 的是可以基于 wss 来传输的,所以,在小程序中连接 MQTT 需就可以通过 MQTT over wss 的方式实现。
开源库
目前支持 MQT...
动态创建百度云天工物接入(IoT Hub)的设备物影子 | Visoar
本例实现通过百度云函数计算,动态创建天工物接入的设备影子,并返回连接信息(影子的用户名&密码);并可搭配规则引擎,实现通过MQTT消息创建影子。
背景
场景1、天工物接入的设备型,给每个设备影子分配了设备唯一的鉴权信息(MQTT用...
给你吃灰的树莓派找点活(是的,又一个温湿度监测) | Visoar
很多同学的树莓派,买之前计划了很多使用场景,然而买回来以后折腾了几次,就默默放在那吃灰了。
所以,这篇文章就是来尝试给你的树莓派找点活干的。当然,也可能成为一些同学入手 pi 的原因。吃灰——永远在循环...
准备
硬件
树莓派(就不配...
Hello World | Visoar
https://visoar.top/post/hello-gridea/
准备使用 Gridea 重新开始写 blog(捂脸)
✍️ Gridea 是一个静态博客写作客户端。你可以用它来记录你的生活、心情、知识、笔记、创意... ...
Github
打算首先把之前的文章迁移一下。
...
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