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RE: 一个超级简单的见证人监控报警装置

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oflyhigh (85)Oin HIVE CN 中文社区 • 2 days ago

image.png

以前用来发短信的设备
可惜后来联通和移动都关闭了2G网,这个SIM900A也就成了电子垃圾了

2 days ago in HIVE CN 中文社区 by oflyhigh (85)O
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