# Telit HE910 The [**Telit HE910**](https://www.telit.com/devices/he910-series/) is a compact cellular modem, supporting 3G/UMTS and includes GSM/GPRS fallback. ![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M0mPxGpottOEfcucXOR%2Fuploads%2FYazy9ZNEp2bca9y3rXvS%2Fimage.png?alt=media\&token=333a01ef-5c5c-41d6-8beb-9d6ccb274ca1) ### Prerequisites * Monogoto SIM * [Telit HE910](https://www.telit.com/devices/he910-series/) of HE910-GL ### Quick Navigation * [Connect the Telit HE910 to Monogoto](#connect-the-mc7700-to-monogoto) * [Network Activation](#network-activation) * [Test the connection by sending a PING](#test-the-connection-by-sending-a-ping) * [Useful Links](#useful-links) ## Connect the HE910 to Monogoto {% hint style="info" %} **For Windows users.** You need to install a driver to start using the Telit HE910. You can download the driver [**here**](https://www.telit.com/he910-download-zone/) (after signing up to Telit's website). {% endhint %} {% hint style="info" %} Keep the **AT Commands manual** next to you for more details about the commands. Click the PDF below to download the latest version. {% endhint %} {% file src="" %} **Connect to the modem**, enter the command: `AT` and wait for the response: `OK` **Reset the modem** to its default configuration: ```bash AT+CFUN=1,1 ``` Set the error reporting to **verbose**, resulting in more descriptive error messages (optional): ```bash AT+CMEE=2 ``` Check the status of the SIM card. The correct response should be: `+CPIN: READY` ``` AT+CPIN? ``` {% hint style="warning" %} If you receive an error, the SIM may not be inserted properly or the SIM is protected with a PIN. By default, Monogoto SIMs are not PIN protected. {% endhint %} ### Query device information Request the modem **hardware version**: ``` AT+CGMM ``` Request the modem **firmware version**: ```bash AT+CGMR ``` Request the **IMSI** (International Mobile Subscriber Identity): ``` AT+CIMI ``` Request the **ICCID** (Integrated Circuit Card ID), which is the identification number of the SIM card ```bash AT+CCID ``` ### Network Configuration It is possible to let the modem select the network automatically, or to manually define a network to connect with. #### **Option 1: Automatic Network Selection** To set the modem to **automatic network selection** enter the command: ```bash AT+COPS=0 ``` Check the **network and cellular technology the modem** is currently using: ``` AT+COPS? ``` Expected response: `+COPS: 0,0,"",X`. The last digit indicates the cellular technology:\ `0` indicates **2G/GSM**\ `2` indicates **3G/UTRAN** #### Option 2: Manual Network Selection Start with searching for available networks: ``` AT+COPS=? ``` {% hint style="warning" %} It may take several minutes before the modem responds. {% endhint %} The modem responds with the **names** and the **MCCMNC** codes of the available networks. It also shows the cellular technologies the networks support: ``` +COPS: (1,"T-Mobile NL","TMO NL","20416",0),(1,"NL KPN","NL KPN","20408",0),(1,"vodafone NL","voda NL","20404",0),(2,"NL KPN","NL KPN","20408",2),(1,"vodafone NL","voda NL","20404",2),(1,"T-Mobile NL","TMO NL","20416",2),,(0,1,2,3,4),(0,) OK ``` To find which of the networks Monogoto has **roaming agreements** with, review the [**Coverage lists**](https://docs.monogoto.io/getting-started/global-public-coverage). {% hint style="info" %} To find the **profile** of your SIM, visit the [**Monogoto Console**](https://console.monogoto.io/), open the page **Things** ![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M0mPxGpottOEfcucXOR%2Fuploads%2FfH8DCNlIW5R2VRiHwMG5%2FThings.png?alt=media\&token=2a63b922-cb41-4271-803e-ba9eab36566d) and select a specific **Thing**. Scroll down to **Mobile Identities** to find your profile in the column **Network Provider Name**. ![](https://3922449203-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M0mPxGpottOEfcucXOR%2Fuploads%2FddQeceTZxjtQYFPAHe95%2Fimage.png?alt=media\&token=4a3f1cbf-3922-48f9-af5d-2e292bd76b72) {% endhint %} Check the **network and cellular technology** the modem is currently using: ``` AT+COPS? ``` Expected response: `+COPS: 0,0,"",X`. The last digit indicates the cellular technology. **Manually set the network and the cellular technology**: ``` AT+COPS=1,2,"XXXXX",2 ``` Replace `XXXXX` with the **MCCMNC** code of your operator, for example`"20404"` for Vodafone NL. Use `2` for UTRAN. It is possible to leave the value for setting the cellular technology out, allowing the modem to select the RAT by itself. **Check the radio signal strength and signal quality:** ```bash AT+CSQ ``` {% hint style="info" %} `+CSQ` returns 2 values separated by a comma. The first value represents the **signal strength** and provides a value between 0 and 31; a higher number indicates better signal strength. The second value represents the **signal quality** indicated by a value between 0 and 7, a lower value indicates better signal quality . If `AT+CSQ` returns `99,99`, the signal is undetectable or unknown. {% endhint %} #### Define the cellular band(s) (optional) It is possible to **lock the modem to specific bands for specific technologies**. This may result in a faster boot cycle as the modem does not need to scan for available bands at startup. {% hint style="info" %} For details about the available bands, have a look at the [**AT Commands**](https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M0mPxGpottOEfcucXOR%2Fuploads%2F0MAVnyAG8SzZGjeUAmgx%2Ftelit_3g_modules_at_commands_reference_guide_r13.pdf?alt=media\&token=5495fd9f-618d-4a92-a740-4ff43badc8d5) section **3.4.31**. {% endhint %} To lock the modem a specific band, enter: ``` AT#BND=, ``` To test if the band was properly set, enter: ``` AT#BND? ``` ### Network Activation **Set the APN to** `data.mono`: ```json AT+CGDCONT=1,"IP","data.mono" ``` Validate if the **APN** is set correctly: ``` AT+CGDCONT? ``` Expected response: `+CGDCONT: 1,"IP","data.mono","0.0.0.0",0,0,0,0,0,0` **Activate the PDP (packet data protocol) context**: ``` AT+CGACT=1,1 ``` **Test** if the PDP context is activated: ``` AT+CGACT? ``` Expected response: `+CGACT: 1,1` #### Validate if your device received an **IP address**: ```bash AT+CGPADDR= ``` Expected response: `+CGPADDR: 1,XX.XXX.XX.XXX` {% hint style="success" %} Do you see an IP address? **Congratulations! You’ve successfully connected the Telit modem 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 %} ## Test the connection by sending a PING A PING test can be performed to test if the modem has an active data connection with a mobile network. {% hint style="warning" %} When cellular modems are idle for a long period of time, cell towers might drop the data connection to save resources. Sending regular PINGs is a good method for testing the data connection, as well as for keeping the connection alive because the operator registers your device as being actively used. {% endhint %} **Activate a data connection** for PDP index `1`**:** ``` AT#SGACT=1,1 ``` Expected response: `#SGACT: 10.140.xx.xxx` **Send 5 PINGs** to IP address `8.8.8.8`. ``` AT#PING="8.8.8.8",5 ``` If the connection is active, you will see 5 PINGs with a number representing the response time in milliseconds. Example response: ``` #PING: 01,"8.8.8.8",19,50 #PING: 02,"8.8.8.8",2,50 #PING: 03,"8.8.8.8",3,50 #PING: 04,"8.8.8.8",2,50 #PING: 05,"8.8.8.8",1,50 ``` **Deactivate the PDP context** after completing the PING test. ``` AT#SGACT=1,0 ``` Expected response: `OK` {% hint style="success" %} **Great work on connecting the Telit HE910 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 * [AT Commands Manual](https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M0mPxGpottOEfcucXOR%2Fuploads%2F0MAVnyAG8SzZGjeUAmgx%2Ftelit_3g_modules_at_commands_reference_guide_r13.pdf?alt=media\&token=5495fd9f-618d-4a92-a740-4ff43badc8d5) * [Telit HE910 Product Page](https://www.telit.com/devices/he910-series/) * [Download Windows driver](https://www.telit.com/he910-download-zone/)