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Supported AT commands
The tables shown below represent the current status of the library based on the different AT commands available in the Iridium SBD service:
| Status | Icon | Preview | Description |
|---|---|---|---|
| Planned | :clock1: |
🕐 Planned | The command is not implemented yet, but it is planned to be implemented in a near future |
| WIP | :pencil2: |
✏️ WIP | The command is not implemented yet, but it is being implemented |
| Implemented | :hammer_and_pick: |
⚒️ Implemented | Command is implemented, but it was not tested yet |
| Tested | :heavy_check_mark: |
✔️ Tested | Command is implemented and working as expected |
This commands are part of the AT Hayes command set and are availbale in the majority of modems. All of this commands are implemented by the AT-UART module.
| AT | Command | Status | Observations |
|---|---|---|---|
| AT | AT Test Command | ✔️ Tested | For internal use only |
| A/ | Repeat Last Command | 🕐 Planned | |
| E | Echo | ✔️ Tested | For internal use only |
| I | Identification | ✏️ WIP | |
| Q | Quiet Mode | ✔️ Tested | For internal use only |
| V | Verbose Mode | ✔️ Tested | For internal use only |
| Z | Soft Reset | 🕐 Planned | |
| &D | DTR Option | ✔️ Tested | |
| &F | Restore Factory Settings | ❌ | |
| &K | Flow Control | ✔️ Tested | |
| &V | View Active and Stored Configuration | ❌ | |
| &W | Store Active Configuration | ⚒️ Implemented | |
| &Y | Designate Default Reset Profile | ⚒️ Implemented | |
| %R | Display registers | ❌ | |
| *F | Flush to EEPROM | ⚒️ Implemented | |
| *R | Radio Activity | 🕐 Planned |
The following commands are Iridium specific and all of them are implemented in the ISU module.
| AT | Command | Status | Observations |
|---|---|---|---|
| +CCLK | Real Time Clock | ✔️ Tested | |
| +CGMI | Manufacturer Identification | 🕐 Planned | |
| +CGMM | Model Identification | 🕐 Planned | |
| +CGMR | Revision | ✔️ Tested | |
| +CGSN | Serial Number | ✔️ Tested | |
| +CIER | Indicator Event Reporting | ✔️ Tested | |
| +CRIS | Ring Indication Status | ✔️ Tested | |
| +CSQ | Signal Quality | ✔️ Tested | |
| +CULK | Unlock | ❌ | |
| +GMI | Manufacturer identification | ❌ | |
| +GMM | Model identification | 🕐 Planned | |
| +GMR | Revision | 🕐 Planned | |
| +GSN | Serial number | ❌ | |
| +IPR | Fixed DTE rate | ❌ | Baudrate is something that should not be changed in production, in some circumstances an adaptive baudrate could be implemented in order to avoid electrical noise (for example), but for now, this is not planned to be implemented |
| +SBDWB | Write Binary Data to the ISU | ✔️ Tested | |
| +SBDRB | Read Binary Data from the ISU | ✔️ Tested | |
| +SBDWT | Write a Text Message to the Module | ✔️ Tested | Pending improvements |
| +SBDRT | Write a Text Message to the Module | ✔️ Tested | Pending improvements |
| +SBDI | Initiate an SBD Session | ✏️ WIP | |
| +SBDDET | Detach | 🕐 Planned | |
| +SBDDSC | Delivery Short Code | 🕐 Planned | |
| +SBDIX | Initiate an SBD Session Extended | ✔️ Tested | |
| +SBDIXA | Initiate an SBD Session Extended | ✔️ Tested | |
| +SBDMTA | Mobile-Terminated Alert | ✔️ Tested | |
| +SBDREG | Network Registration | ⚒️ Implemented | |
| +SBDAREG | Automatic Registration | 🕐 Planned | |
| +SBDD | Clear SBD Message Buffers | ✔️ Tested | |
| +SBDC | Clear SBD MOMSN | 🕐 Planned | |
| +SBDS | Status | 🕐 Planned | |
| +SBDSX | Status Extended | 🕐 Planned | |
| +SBDTC | Transfer MO Buffer to MT Buffer | ✔️ Tested | |
| +SBDGW | Gateway | 🕐 Planned | |
| +MSSTM | Request System Time | 🕐 Planned |
NOTE: some AT commands can give different responses depending on the suffix used, for example, the suffix
=?is usually used to test a command to retrieve the different parameter values supported. Not all possible suffixes for all possible commands are implemented. The "read" variant?is implemented for almost every command that supports it.
NOTE: by the moment tested means (at least) that it works on a NXP FDRM K64F board using the Iridium 9602 SBD Transceiver, however it should work with other combinations of boards and modems.