Template: SIMCOM模组常见AT指令说明
From Waveshare Wiki
Common AT Command
- SIM7600X and SIM820X module supports AT command control, some basic AT commands are shown in the table below:
| Command | Description | Return |
|---|---|---|
| AT | AT Test Command | OK |
| ATE | ATE1 set echo ATE0 close echo |
OK |
| AT+CGMI | Query module manufacturer | OK |
| AT+CGMM | Query module model | OK |
| AT+CGSN | Query product serial number | OK |
| AT+CSUB | Query module version and chip | OK |
| AT+CGMR | Query the firmware version serial number | OK |
| AT+IPREX | Set the module hardware serial port baud rate | +IPREX: OK |
| AT+CRESET | reset module | OK |
| AT+CSQ | Network signal quality query, return signal value | +CSQ: 17,99 OK |
| AT+CPIN? | Query the status of the SIM card and return READY, indicating that the SIM card can be recognized normally | +CPIN: READY |
| AT+COPS? | Query the current operator, the operator information will be returned after normal networking | +COPS: OK |
| AT+CREG? | Query network registration status | +CREG: OK |
| AT+CPSI? | Query UE system information | |
| AT+CNMP? | Network mode selection command： 2：Automatic 13：GSM only 38：LTE only 48 ： Any modes but LTE ... .... |
OK |
- Open the device manager, find the port number corresponding to AT Port; then open the sscom software, select the corresponding port and baud rate, check "Add carriage return and line feed"; click the sscom "Extension" button and pull out the preset It is best to open the serial port and send the corresponding AT command to test.