IoTStation

For P-900 IOT Station setup and message receiving (Android 9 and above)
P-900 spec,please refer to
http://www.wireless.com.tw/Product%20P-900%20171115.htm
usage of App+P900 :
https://youtu.be/KlcX2V-syvQ
https://youtu.be/MwoRH1FfoT0