可以参考SIM800系列_IP_应用文档,测试服务器已经开启了
AT+SAPBR=3,1,"Contype","GPRS"
OK
AT+SAPBR=3,1,"APN","CMNET"
OK
AT+SAPBR=1,1
OK
AT+SAPBR=2,1
+SAPBR: 1,1,"10.245.106.212"
OK
AT+FTPCID=1
OK
AT+FTPSERV="123.59.194.214"
OK
AT+FTPUN="zjiot"
OK
AT+FTPPW="123456"
OK
AT+FTPGETPATH="./"
OK
AT+FTPLIST=1
OK
+FTPLIST: 1,1
AT+FTPLIST=2,1024
+FTPLIST: 2,66
-rw-r--r-- 1 0 0 9 Jan 08 14:52 test.txt
OK
+FTPLIST: 1,0
AT+FTPGETNAME="test.txt"
OK
AT+FTPGET=1
OK
+FTPGET: 1,1
AT+FTPGET=2,1024
+FTPGET: 2,9
abcd1234
OK
OKAT/FTPLIST/SAPBR/FTPGET/1OK/1AT/2,1024/1234OK/MQTT/3,1/
OKAT/FTPLIST/SAPBR/FTPGET/1OK/1AT/2,1024/1234OK/MQTT/3,1/
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