voici ce que je reçois sur le Serial monitor:
AT
ERROR
AT+CIPSHUT
SHUT OK
AT+SAPBR=0,1
OK
AT+SAPBR=3,1,"Contype","GPRS"
OK
AT+SAPBR=3,1,"APN","internet"
OK
AT+SAPBR=1,1
OK
AT+HTTPINIT
OK
AT+HTTPPARA="CID",1
OK
AT+HTTPPARA="CONTENT","application/json"
OK
AT+HTTPPARA="REDIR",1
OK
AT+HTTPPARA="URL","http://example.com"
OK
AT+HTTPDATA=45,20000
DOWNLOAD
OK
AT+HTTPACTION=1
OK
+HTTPACTION:1,603,0
AT+HTTPREAD
OK
AT+HTTPTERM
OK