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root@rk3308b-buildroot:/root# microcom /dev/ttyUSB1
AT+QIOPEN=1,0,"TCP","154.222.17.158",80,0,2 CONNECT HTTP/1.1 400 Bad Request Server: nginx/1.27.4 Date: Tue, 23 Dec 2025 09:58:37 GMT Content-Type: text/html Content-Length: 157 Connection: close <html> <head><title>400 Bad Request</title></head> <body> <center><h1>400 Bad Request</h1></center> <hr><center>nginx/1.27.4</center> </body> </html> NO CARRIER root@rk3308b-buildroot:/root# |
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最後一定要記得AT+QICLOSE=0關閉連接，不然建立不了新連接。 root@rk3308b-buildroot:/root# microcom /dev/ttyUSB1 AT+QIOPEN=1,0,"TCP","154.222.17.158",80,0,2ERROR AT+QICLOSE=0 OK AT+QIOPEN=1,0,"TCP","154.222.17.158",80,0,2 CONNECT HTTP/1.1 400 Bad Request Server: nginx/1.27.4 Date: Tue, 23 Dec 2025 10:04:32 GMT Content-Type: text/html Content-Length: 157 Connection: close <html> <head><title>400 Bad Request</title></head> <body> <center><h1>400 Bad Request</h1></center> <hr><center>nginx/1.27.4</center> </body> </html> NO CARRIER AT+QICLOSE=0 OK root@rk3308b-buildroot:/root# |
