# Murata ALT1250 Satellite NTN Network
[**Murata LBAD0XX1SC-DM**](https://www.murata.com/en-us/products/connectivitymodule/lpwa/overview/lineup/type-1sc) The Type 1SC module is the world’s smallest Cat. M1/NB-IoT module with global certification. It supports GPS/GNSS, OpenMCU, and Integrated SIMS.
## Set up Murata Kit (LBAD0XX1SC-DM-EVK2)
## Quick Navigation
* [Set up the EVK Kit](#set-up-the-evk-kit)
* [Connect to Skylo](#connect-the-lbad0xx1sc-to-skylo)
* [Test the connection by sending UDP payload](#test-the-connection-by-sending-a-udp-payload)
* [Useful Links](#useful-links)
* [Video Tutorial](#useful-links)
## Set up the EVK Kit
* Connect the **UBC Cable** to the EVK kit as shown on the photo above
* **Connect the LTE antenna** as shown on the photo above
* Insert the **Monogoto SIM**
#### **Connect your PC to the EVK Kit**
Use the USB to connect your computer to the **AT CMD** port of the EVK Kit
{% hint style="info" %}
When using Windows, install the driver using the disk or USB stick provided by Murata.
{% endhint %}
Connect to the EVK kit using a **terminal program**. You can use PuTTY for Windows, or Screen, minicom, or Miniterm for Mac or Linux.
Set the baud rate to **115200** Enter **`AT`**, if the connection with the LBAD0XX1SC-DM modem has been established, the board will answer with `OK`.
## Connect the LBAD0XX1SC to Skylo
{% hint style="info" %}
Keep the **AT Commands manual** next to you for more details about the commands. [**Click here**](https://www.murata.com/en-us/products/connectivitymodule/lpwa/overview/lineup/type-1sc) to download the latest version, and scroll down to **Documentation and Resources** to find the AT Commands Manual.
{% endhint %}
{% hint style="danger" %}
For some firmware versions, you need to click and hold the `SW1` button in order to send AT Commands to the module.
{% endhint %}
#### **Reboot the Module**:
```bash
ATZ
```
Check the **status of the SIM card**. The correct response should be: `+CPIN: READY`
```
AT+CPIN?
```
{% hint style="success" %}
+CPIN: READY means that the SIM is ready for use and does not require any PIN entry.
{% endhint %}
### Executing Commands by Version
Execute various commands based on the software version you are using. Make sure to execute the commands that correspond to your version.
**Query device information**
Request the **product type, hardware,** and **firmware** **version**:
```bash
ATI
```
{% hint style="warning" %}
Example response:
Revision: RK\_03\_02\_00\_00\_41841\_001
{% endhint %}
Request the **IMSI** (International Mobile Subscriber Identity):
```
AT+CIMI
```
Request the **ICCID** (Integrated Circuit Card ID), which is the identification number of the iSIM
```
AT%CCID
```
**Set the error reporting to verbose**, resulting in more descriptive error messages (optional):
```bash
AT%SETACFG="manager.urcBootEv.enabled","true"
```
Check the **SIM initialization selection policy** is currently using:
AT%GETCFG="SIM_INIT_SELECT_POLICY"
Expected response:
`SIM_INIT_SELECT_POLICY:5`. The last digit indicates the Active SIM:\
`0` indicates **External (SIM card)**\
`5` indicates **Internal (iSIM)**
**Enable** the External SIM card
```
AT%SETCFG="SIM_INIT_SELECT_POLICY","0"
```
#### **Reboot the Module**:
```bash
ATZ
```
### **Set the NTN Parameter** (enter the commands)
```bash
AT%SETACFG="radiom.config.multi_rat_enable","true"
AT%SETACFG="radiom.config.preferred_rat_list","none"
AT%SETACFG="radiom.config.auto_preference_mode","none"
AT%SETACFG="locsrv.operation.locsrv_enable","true"
AT%SETACFG="locsrv.internal_gnss.auto_restart","enable"
AT%SETACFG="modem_apps.Mode.AutoConnectMode","true"
ATZ
```
#### Define the NB-IoT NTN
```
AT%RATACT="NBNTN","1"
```
**Disable** **the** **radio**
```bash
AT+CFUN=0
```
**Set the APN to** `data.mono`:
```json
AT%PDNSET=1,"DATA.MONO","IP"
```
**Lock the modem to a specific region/band**
```
AT%SETSYSCFG=SW_CFG.nb_band_table.band#1,ENABLE;255
or
AT%SETCFG="BAND","255"
```
{% hint style="info" %}
Although the modem may support many different NTN bands,
23 = Canada
255 = L band Global (United States, Taiwan, Australia, New Zealand, Japan)
256 = S band Europe
{% endhint %}
**Lock the modem to a GNSS mode to Internal GNSS Mode**
AT%NTNCFG="POS","IGNSS","0"
**Reset** in order for the parameters to take effect
#### **Reboot the Module**:
```bash
ATZ
```
### Network Activation
**Disable** **radio**
```bash
AT+CFUN=0
```
**Enable GNSS and NTN** reception notification:
```bash
AT%IGNSSEV="FIX",1
AT%NOTIFYEV="SIB31",1
```
**Report** notification about Timing Advance calculation:
**Send registration status**
```
AT+CEREG=2
```
**Enable iGNSS**
```bash
AT%IGNSSACT=1
```
{% hint style="warning" %}
it is crucial to wait until a valid GPS location is acquired before continuing operations. This ensures that the device is properly connected to the satellite network and can function accurately within its coverage.\
\
example response
%IGNSSEVU: // Wait to FIX URC is received ←"FIX",1,"09:25:24","11/09/2024","xxxxx","-yyyyyy","113.6",1726046724000,4.6,"0.000000","B",7
{% endhint %}
**Enable** **radio**
```
AT+CFUN=1
```
Example response:
```
OK
CEREG: 2
%NOTIFYEV: "SIB31"
+CEREG: 0
+CEREG: 2
%NOTIFYEV: "SIB31"
+CEREG: 5,"07ED","002C480D",9
```
#### CEREG State Change Report Codes
The table below provides an overview of the possible values for CEREG state change reports, indicating the module's network registration status.
| Value | Description |
|---|
| 0 | Not registered, and the module is not searching for a network. |
| 1 | Registered to the home network. |
| 2 | Not registered, but the module is attempting to attach or searching for a network. |
| 3 | Registration denied by the network. |
| 4 | Unknown (for example, out of coverage) |
| 5 | Registered and roaming. |
### Query the signal measurement
request a specific network measurement, such as signal strength, noise levels, or other metrics:
```
AT%MEAS="8"
```
Example response: `%MEAS:Signal Quality:RSRP= -115,RSRQ= -15,SINR= -3,RSSI= -120.`
### Gather detailed information on physical connectivity and eNB
request physical connectivity
```
AT%PCONI
```
Example response:
```
duplexing mode: FDD
Transmission mode: SISO
Bandwidth: 180kHz
EARFCN: 7699
Global Cell ID: 0x002C480D
Physical Cell ID: 29
HNBN: N/A
Band: 23
```
## Test the connection by sending UDP payload
{% hint style="warning" %}
When using Non-Terrestrial Networks, data can only be sent using UDP.
{% endhint %}
In order to send data using UDP, 4 AT Commands needs to be sent:
1. **Create UDP socket**
2. **Activate socket**
3. **Send UDP data**
4. **Close UDP Socket**
### **1. Create UDP socket**
```
AT%SOCKETCMD="ALLOCATE",1,"UDP","OPEN","",
```
Example message: `AT%SOCKETCMD="ALLOCATE",1,"UDP","OPEN","34.192.142.126",12345`
Example response: `%SOCKETCMD:1`
### **2. Activate Socket**
```
AT%SOCKETCMD="ACTIVATE",1
```
Example response: `%SOCKETCMD:1`
### **3. Send UDP data**
```
AT%SOCKETDATA="SEND",1,,""
```
Example message: `AT%SOCKETDATA="SEND",1,13,"48656C6C6F2C20776F726C6421"`
Example response: `%SOCKETDATA:1,13`
{% hint style="warning" %}
Make sure to exactly count the number of characters you send, or you will receive an error.
{% endhint %}
{% hint style="danger" %}
It' s not possible to send text to the module, instead we need to send hexadecimal values. Convert possible text string to hexadecimal numbers using a program like [rapidtables](https://www.rapidtables.com/convert/number/ascii-to-hex.html).
{% endhint %}
{% hint style="info" %}
It may take up to 10 seconds for the message to be fully processed.
{% endhint %}
**Request info UDP Socket**
```
AT%SOCKETCMD="INFO",1
```
Example response: `%SOCKETCMD:"ACTIVATED","UDP","10.22.243.30","34.192.142.126",12345,7`
### **4. Close UDP socket**
End your UDP session by closing the UDP socket.
```
AT%SOCKETCMD="DELETE",1
```
Expected response: `OK`
## Test UDP Payload with Ubidots
To quickly test if UDP messages are successfully sent, you can use a platform like **Ubidots**.
Learn more in our Ubidots guide: [ubidots](https://docs.monogoto.io/developer/cloud-integrations/ubidots "mention")
{% hint style="success" %}
**Great work on connecting the Murata LBAD0XX1SC-DM to Monogoto!** Have a look at the **Things** logs in the [**Monogoto Console**](https://console.monogoto.io/) to find more details about the established connection.
{% endhint %}
## Transition Between Satellite Network and Public Network
When transitioning between satellite and public networks using the Murata Kit use the following commands:
#### Command for Switching to Public Network:
```
AT%RATACT="CATM","1"
```
This command activates the CAT-M mode for public networks, allowing the device to switch from satellite connectivity to a cellular public network.
#### Command for Switching Back to Satellite Network
```
AT%RATACT="NBNTN","1"
```
This command activates the NBNTN mode, returning the device to satellite network connectivity.
{% hint style="success" %}
**Great work on connecting the Murata LBAD0XX1SC-DM to Monogoto!** Have a look at the **Things** logs in the [**Monogoto Console**](https://console.monogoto.io/) to find more details about the established connection.
{% endhint %}
## Useful Links
* [QLBAD0XX1SC-DM product page](https://www.murata.com/en-us/products/connectivitymodule/lpwa/overview/lineup/type-1sc#anchor-3)
* [QLBADXX1SC-DM Quick Start Guide](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M0mPxGpottOEfcucXOR%2Fuploads%2FIQSItX6iyZ35t7a1wnVf%2FLPWA%20Type%201SC%20Quick%20start%20guide_Ver3%201.pdf?alt=media\&token=f8493020-a0a8-4e34-afb8-246540645017)
* [QLBADXX1SC-DM DataSheet](https://wireless.murata.com/pub/RFM/data/lbad0xx1sc.pdf)
* [Unboxing, Setup & Configuration of LBAD0XX1SC-DM-EVK2](https://youtu.be/8YWQ8Hu4ClA?si=VpXjyaRfQ1BuK6Y0)
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