This is the part of the base station that uses lora to herd cattle. GPS data is collected and sent to a base station 10 kilometers away through lora.
Then connect to the MQTT server through 4G
and put the cows on the mountain to graze. You can watch the cows at home and send an alarm if they go out of range.
This is a relatively complete project, the details of station b are here.
https://www.bilibili.com/video/BV1kB4y1e7cv?spm_id_from=333.999.0.0
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