TSIM 7670E

Using a T-SIM 7670E

Necessary AT coammands

GPS

|At Cmd|Reason|
|++++++++++++++++|++++++++++++++++++++++++++++++++|
|AT+CGNSSPWR=1,1|turn GPS on (in Hot flash mode)|
|AT+CGNSSPORTSWITCH=1,0|
|AT+CGNSSTST=0|Test mode OFF|
|AT+CGNSSMODE=1|GPS|
|AT+CGNSSPORTSWITCH=1,0|Send NMEA Data to output port|
|AT+CGNSSINFO=30|Report GNSS info every 30 seconds|
|AT+CGPSINFO=30|Report GPS info every 30 seconds|

Mon module: Model: A7670E-FASE Revision: A7670M7_V1.11.1

répond AT+CGNSSMODE=? +CGNSSMODE: (1-4)

Le mode 1 verouille (GPS)

Le mode 3 (GPS+GLONASS+GALILEO+SBAS+QZSS) verouille aussi

[],[],[],[BEIDOU-SVs],[],[<N/S>],[],[<E/W>],[],[],[],[],[],[],[HDOP],[VDOP] +CGNSSINFO: 3,17,,11,02,50.7327652,N,5.6842937,E,111025,121656.00,114.5,0.496,,2.56,0.99,2.37,12

Donc:

3 Fix mode 2=2D fix 3=3D fix 17 GPS satellite visible numbers

  • BEIDOU satellite visible numbers 11 GLONASS satellite visible numbers 02 GALILEO satellite visible numbers 50.732 Latitude of current position.Output format is dd.ddddd N <N/S> N/S Indicator, N=north or S=south. 5.684 Longitude of current position. Output format is ddd.ddddd E <E/W> E/W Indicator, E=east or W=west. 111025 Date. Output format is ddmmyy. 121656 UTC Time. Output format is hhmmss.ss. 114.5 MSL Altitude. Unit is meters. 0.496 Speed Over Ground. Unit is knots.
  • Course. Degrees. 2.56 Position Dilution Of Precision. 0.99 Horizontal Dilution Of Precision. 2.37 Vertical Dilution Of Precision.

AT+CGNSSPORTSWITCH 1,0 AT+CGNSSMODE 3 AT+CGPSWARM AT+CGNSSINFO 30

GPRS

AT+CPIN=pin AT+CREG=1 AT+CNUM returns the phone number (+CNUM: “�”,"+32498691052",145))

Packet domain

register AT+CGREG=1 attach AT+CGATT=1 AT+NETOPEN

Start MQTT

AT+CMQTTSTART AT+CMQTTACCQ=0,“modemtest”,0 //acquire a client define client ID AT+CMQTTCONNECT=0,“tcp://www.jcoenen.com:8883”,60,1,“jcoenen”,“Beatr1ce” // connect to broker

Get IP address AT+CGPADDR

Ping: AT+CPING=“ www.jcoenen.com ”,1,4 returns: 1, IP address, packet size, rtt, TTL (+CPING: 1,213.211.158.130,92,270,55) 2 ping time out 3 ping result

MQTT sequence

CMQTTSTART AT+CMQTTACCQ=0,“modemtest”,0. //acquire client AT+CMQTTCONNECT=0,“tcp://www.jcoenen.com:8883”,60,1,“jcoenen”,“Beatr1ce” //connect client to broker

AT+CMQTTTOPIC=0,length(topic string) topic string

AT+MQTTPAYLOAD=0,length(payload string) payload string

AT+CMQTTPUB=0,1,120,1. (client ID, Send at least once, timeout seconds, retain flag)