Telit ME910 Cheat Sheet
If you want to send raw AT commands over uart make sure ModemManager isn't also talking to the module:
systemctl stop ModemManager
Monitor dmesg:
dmesg -w
Hold the power button and observe the module power up:
[602715.818079] option 1-3:1.0: GSM modem (1-port) converter detected
[602715.818686] usb 1-3: GSM modem (1-port) converter now attached to ttyUSB0
[602715.819420] option 1-3:1.1: GSM modem (1-port) converter detected
[602715.819979] usb 1-3: GSM modem (1-port) converter now attached to ttyUSB1
[602715.820757] option 1-3:1.2: GSM modem (1-port) converter detected
[602715.821903] usb 1-3: GSM modem (1-port) converter now attached to ttyUSB2
Connect over minicom
sudo minicom -D /dev/ttyUSB1
minicom configuration:
- CTRA-A, Z, P: 115200 8N1
- CTRA-A, Z, O: Hardware Flow Control: No
- CTRA-A, Z, O: Software Flow Control: No
Check Comms:
AT
OK
| Command | Info | Output |
|---|---|---|
| ATZ | Soft Reset | |
| ATI4 | Module Name | ME910C1-E2 |
| AT#QSS? | Query SIM Status | #QSS: 0,1 |
| AT+CFUN? | Query phone functionality | |
| AT+CGDCONT? | Check APN details | |
| AT+CGAUTH? | Check password | |
| AT+CREG=2 | Unsolicited Registration message | |
| AT+CEREG=2 | Unsolicited Registration message (NB-IoT) | |
| AT+CGREG=2 | Unsolicited Registration message (2G) | |
| AT+CREG? | Check Current Registration | |
| AT+CEREG? | Check Current Registration (NB-IoT) | |
| AT+CGREG? | Check Current Registration (2G) | |
| AT#PSNT? | Packet Service Network Type | 0=GPRS, 4=LTE, 5=Unknown/Not Registered |
From here: link
ATI // prints module information
AT+CPIN? // should return “READY”
AT+CFUN? // checks module state, should be 1 for full functionality, 4 = "flight mode"
AT+COPS=? // will search for nearby networks, may take 1-3 minutes
AT+CGDCONT? // should print the configured PDP contexts, hologram should be in this list, may show an IP if given one by the carrier
AT+CGACT? // checks if PDP context is active
SWPKGV // Request Software Package Version
AT+CGSN // Request Product Serial Number Identification
AT#CCIOTOPT? // Query CIoT Optimization Configuration
AT#CPSMS? // Query Power Saving Mode Setting
ATZ
AT+CFUN=1 // Full functionality
AT+COPS=2 // Disable network registration
AT+CREG=2
AT+CGREG=2
AT+CEREG=2
AT+CREG? // Make sure it's not registered already and not searching
AT+CGREG? // Make sure it's not registered already and not searching (2G)
AT+CEREG? // Make sure it's not registered already and not searching (NB-IoT)
AT+COPS=1,2,"23415",9 // NB-IoT Registration
//AT+COPS=1,2,"23415",0 // 2G Registration
Example Output (2G)
ATZ
OK
ATZ
OK
AT+COPS=2
OK
AT+CFUN=1
OK
AT+CREG=2
OK
AT+CGREG=2
OK
AT+CEREG=2
OK
AT+CREG?
+CREG: 2,0
OK
AT+COPS=1,2,"23415",0
OK
+CREG: 1,"03CE","C4EE",0
+CGREG: 2
+CGREG: 1,"03CE","C4EE",0,
// Manual Queries
AT+CREG?
+CREG: 2,1,"03CE","C4EE",0
OK
AT+CGREG?
+CGREG: 2,1,"03CE","C4EE",0,"01"
OK
AT+CEREG?
+CEREG: 2,0
OK
From ME910C1 Quick Start Guide
AT+CFUN=1 // Full functionality
AT+COPS=2 // Disable network registration
AT+CGDCONT=1,"IP",”<APN>” // Set <cid>=1 with APN
AT+COPS=0 // Enable network registration with automatic selection
AT#SCFG=1,1,300,90,600,50 // Socket Configuration (see AT command manual for the details of the command)
AT#SGACT=1,1 // Internal modem process (expect to receive: ERROR)
AT+CEREG? // Check Network registration , 2 or 5 is the positive answer // for that.
AT#SGACT? // Confirm Context activated
AT+CGPADDR=1 // Read IP address
AT#SD=1,0,<Dest. Port>,<"IP address">,0,1234,1 // Open a TCP socket to remote server
AT#SSEND=1 // After that command you will recieve a prompt > and you
// can send the data just typing it and end them with Crtl^Z
// Transmit the data and end the string with Crtl^Z to send it
SRING: 1 // message sent
AT#SH=1 // Close the socket