Waveshare SIM7600G-H M.2 4G HAT for Raspberry Pi 4G/3G/2G GNSS

Product Link

Waveshare SIM7600G-H M.2 4G HAT for Raspberry Pi 4G/3G/2G GNSSOpenELAB

Introduction

Prohibited by the module manufacturer SIMCOM, we're not allowed to ship this product or to provide any tech support, to the following countries/regions: Iran, North Korea, Cuba, Sudan, and Syrian. SIM7600G-H M.2 4G HAT For Raspberry Pi, LTE CAT4 High Speed, Global Coverage Multi-Band, 4G/3G/2G Compatible, GNSS

Features

• Supports dial-up, phone call, SMS, TCP, UDP, MQTT, HTTP(S), FTP(S), and so on.

• GNSS positioning: GPS, Beidou, Glonass, Galileo, QZSS, LBS base station.

• USB 3.1 port (USB 2.0 compatible) for connecting to PC, Raspberry Pi, or Jetson Nano host board to enable high speed 4G communication.

• Onboard UART, PWR, and RST control pin, built-in voltage level translator, enabled via DIP switch, for use with hosts like Raspberry Pi or Arduino.

• Onboard USB-C connector, enabled via switch, for connecting standalone power supply for the module, allows more loads, stable amd flexible power supply.

• Onboard power supply on/off switch, reset button and LED indicator, easy to turn on/off the module or monitor the operating status.

• Reserved 4x SMA to IPEX antenna interfaces, with pre-soldered 2x connectors for easily using antennas, allows changing the SMA antenna position.

• Onboard audio jack and audio decoder, allows audio operation like making phone call.

• High efficiency power supply circuit, up to 3A output current.

Specifications

Pinout

After connecting to Raspberry Pi, these pins (TX, RX, D4 and D6) can be connected or not through the DIP switch:

4G/5G modules function testing

4G/5G Module Compatibility

If you need to use the M.2 TO 4G/5G HAT for other 4G/5G modules, you can refer to the M.2 connection diagram below, check whether there is any pin conflict, and then connect to test:

How to Use

Dail-up

[Note]: You must use a SIM card with GPRS networking function enabled and not out of service.

NDIS Dail-up

• At present, when using Windows 10 operating system, you can connect to 4G DONGLE module (equipped with 4G card of China Mobile/Telecom/Unicom). After installing the driver, most computers will automatically connect to the Internet.

• If WINdows cannot access the Internet, you need to manually start NDIS dialing, open SIM7600 AT port, and send the command:

AT$QCRMCALL=1,1+enter

At this point, the NDIS dialing takes effect, and the computer can connect to the network; if the dialing command returns an error, send the following command to set the NDIS dialing mode and then dial again:

AT+CUSBPIDSWITCH=9001,1,1

RNDIS Dial-Up Internet

In addition, dial-up Internet access using RNDIS is also possible:

• After the device installed SIM card and antenna, connect the USB port to computer, then connect the power supply.

• Refer to the above to install the USB driver

• Open the serial port assistant, find the serial port number corresponding to the AT serial port, and send the AT command to check whether it is registered on the network:

AT+CPSI?  

• If you have successfully registered on the network, then send the AT command to enable USB dial-up Internet access:

AT+CUSBPIDSWITCH=9011,1,1

• If the transmission is successful, the DTU will return OK and reboot automatically.

• And then you can find that there are some unrecognized devices in the Device Manager on the computer, such as RNDIS (with exclamation mark).

• Right-click the 'RNDIS', search "Update Divers" and select "Let me pick from a list of available drivers on my computer", then select "Network adapters" from the device list.

• Select "Microsoft" in the manufacturer list of the Network adapters window, and then select "Remote NDIS Compatible Device" in the list on the right, which is the remote NDIS compatible device.

Click 'Next' and wait for the installation to finish, the RNDIS Kitl device will be installed successfully. And then you can see that the PC can access the Internet via DTU.

PPP dial-up

If the NDIS or RNDIS dial-up cannot access the Internet, you can also use PPP dial-up. The operation steps are as follows：

• Network and Internet Settings -> Set up a new connection -> Connect to the Internet -> Dial up (D) -> Dial a phone number (D): *99# (others are empty by default) -> Connection -> Register -> Connected to the Internet

• 
• 
• 
• 

GPS Test

GNSS control instance

• Plug in the GPS antenna, and place the receiver tag face down in the open air, (Note that rainy weather cannot be tested) you need to wait about 1 minute before receiving the location signal.

• Detailed test instructions and screenshots are as follows:

AT+CGPS=1               // Open GPS
AT+CGPSINFO             // Prints GPS information to the serial port
AT+CGPS=0               // Turn off GPS

TCP/IP Internet data

GPRS debugging requires a SIM card with the GPRS networking function enabled. The following example takes accessing a mobile SIM card as an example.

1. Correctly install the mobile phone card (the GPRS networking function must be enabled), the GSM antenna, and connect the USB cable to the computer;

2. Press the PWR key to start the module and wait for more than ten seconds;

3. Observe whether the indicator light is normal, the PWR indicator is always on, and the NET indicator is flashing;

Set up a local computer virtual server

The virtual server defines the mapping relationship between the WAN service port and the LAN network server. All accesses to the WAN service port will be relocated to the LAN network server specified by the IP address. (Please refer to your router's corresponding manufacturer's manual)

1. Use a browser to log in to the router management interface (please refer to your router manual for the specific address)

2. Set the port number: 2317 (it does not conflict with the existing port number. In this example, it is set to 2317)

3. Set the intranet IP of the computer (the IP obtained by the computer in the local area network can be run CMD on the local machine, enter the command line prompt, enter ipconfig to check the IPv4 address, the intranet IP of the computer in this example is 192.168.1.168), as shown in the following figure :

Configure GPRS

AT+CGDCONT=1,"IP","CMNET"     //Set APN
AT+CSQ       //Query the network signal quality. The first parameter is that the network signal quality is up to 31. The larger the value, the stronger the network signal.
AT+CREG?         //Query the network registration status, where the second parameter is 1, indicating that the registration has been successful.
AT+CIPMODE=1        //Set TCP/IP mode
AT+CSOCKSETPN=1          //select TCP/IP application mode
AT+CIPMODE=0          //select TCP/IP application mode
AT+NETOPEN         //startup mode 
AT+CIPOPEN=0,"TCP","113.81.233.65",2317         //Set TCP, IP and port number, establish TCP/IP connection 
AT+CIPSEND=0,9，         //To specify to send 9 characters of data, return to > to start sending 9 characters of content
AT+CIPCLOSE=0，         //close the TCP connection
AT+NETCLOSE，         //close the network

The operation is shown in the following figure:

Call Phone

• Refer to the "Hardware Configuration" chapter to connect the LTE antenna, SIM card (the phone function must be enabled), and the headset cable with microphone, and the module is turned on.

• Common commands for making calls:

• The detailed operation screenshots are as follows:

[Note]When using the SSCOM serial port assistant to send and receive AT commands, you must click "carriage return and line feed".

Voice output mode and volume adjustment

AT+CSDVC=1 		//switch to headphones 
AT+CSDVC =3 	        //switch to speaker
AT+CLVL =?		//Query the volume range, return +CLVL: (0-5) //Indicates that the volume is adjustable from 0 to 5
AT+CLVL=2     	        //Set the volume to 2, return OK

Answer the phone

Incoming call serial port display: RING
Send "ATA"      //Answer the phone
Send "AT+CHUP"  //Hang up

Audio parameter debugging

AT+CACDBFN=?
+CACDBFN: (Handset_cal.acdb,Handset_tianmai.acdb)	// It is recommended to consider setting this set of parameters 
OK

A.In the initialization stage of the module startup, before making a call, add the following

AT^PWRCTL=0,1,3	// Mainly improve TDD noise effect 
OK

B. The module is in the process of establishing a voice call

VOICE CALL:BEGIN  	// Establish module call to improve call    effect
AT+CECM=1      		//suppress echo
OK
AT+CECH=0x500 	// improve the volume on the mobile phone  
OK

See "SIM7X00_Audio_Application_Note" document for details.

Send English SMS

1. Correctly install the SIM card and LTE antenna, connect the module's USB interface to the computer with a USB cable, and turn on the module; 2. Observe whether the indicator light is normal, the PWR indicator is always on, and the NET indicator is flashing; 3. Set the local SMS center: AT + CSCA = " + 8613800755500" + Enter, return OK.

Note: China Mobile's SMS service center number is +861380xxxx500, where xxxx is the long-distance telephone area code where you are located. The SMS center may be different from place to place. For details, you can query Baidu or call China Mobile Unicom customer service. This SMS center is Shenzhen (0755);

4. AT+CMGF=1: Set the SMS mode to TEXT; 5. AT+CMGS="phone number"<Enter>, set the recipient's phone number, and then return: ">", send the content that you need, such as "Send massage test!", You don’t need to “Enter” at the end. After editing the text message, send 1A to send information in hexadecimal format (1A is the key value of "CTRL+Z", which is used to tell the module to perform the sending operation, or 1B or "ESC" to cancel the operation). After successfully sending, the module returns + CMGS: 15 confirm that the transmission was successful. As shown below.

Receive English SMS

1. Send a message on the phone: "This is a receive test for SIM7600X!" to the test module.

2. When receiving the information, the serial port will break and report the information, "SM", 20, which means there are 20 pieces of information in the SM, and the message just sent is the 20th piece of information.

3. Read information: AT+CMGR=20 to read the 20th information (AT+CMGL="ALL" to read all information).

4. Delete information: AT+CMGD=20, as shown below.

5. Convert the displayed information to text through a code converter.

User Guides of Raspberry Pi

Raspberry Pi Internet Operation

If you are using Raspberry Pi 4B, Raspberry Pi 3B+ or CM4-IO-BASE-A/B baseboard, you can use the used the customized USB adapter.if it is used for other embedded mainboards or PCs, it can be connected through the matching double-head usb3.0 data cable; as shown in the following figure: For specific operations related to Raspberry Pi dial-up Internet access, please refer to the following links:

• Raspberry Pi RNDIS dial-up Internet- (the easiest way to operate)

• Raspberry Pi PPP dial-up- (the operation is relatively simple)

• Raspberry Pi NDIS dial-up Internet access

Raspberry Pi Minicom Sends AT Command to Debug

1. Connect the module to Raspberry Pi. 2. Install minicom, minicom is a serial debugging tool for the Linux platform.

sudo apt-get install minicom

3. USB and UART serial AT command debugging.

• Execute minicom -D /dev/ttyUSB2. (default baud rate is 115200)

 sudo minicom -D /dev/ttyUSB2

• Enter the following AT command in the minicom to open the UART. (the default baud rate is 115200).

AT+CCUART=1

• Switch on all the A silkscreen corresponding to SIM76XX, use minicom to select the corresponding serial port, Raspberry Pi 5/3B/2B/zero, the user serial port device number is ttyAMA0, and the baud rate is 115200 by default.

 sudo minicom -D /dev/ttyS0 -b 115200

4. Taking the AT synchronization test as an example, send relevant commands, as shown in the following figure: * minicom can enter the setting mode by pressing Ctrl+A, then Z, and exit by selecting X. If the sending command does not display, please send the command ATE=1 + Enter -> open the echo.

Program sample

1. After inserting the module and connecting it to the Raspberry Pi; 2. Download the sample program to the /home/pi/ path;

wget https://files.waveshare.com/upload/5/5c/SIM7600G-H-4G-HAT-B-Demo.zip
sudo apt-get install p7zip-full
7z x SIM7600G-H-4G-HAT-B-Demo.zip 

3. Go to the corresponding instance directory, compile and run the program, the relevant instructions are as follows (take the PhoneCall.py program as an example):

cd SIM7600G-H-4G-HAT-B-Demo/Raspberry/python/PhoneCall/ //Enter the folder where PhoneCall.py is located
sudo apt-get install python3-pip
sudo pip3 install pyserial 

sudo pip3 install RPi.GPIO

sudo python PhoneCall.py //Run the program

AT Command

Phone Call Demo

Receive & Send SMS Note: The sample program is to send English text messages. If you have sent Chinese text messages, you need to use the following commands to change to English format:

AT+CSMP=17,167,0,240

GPS Demo

TCP Network Communication Demo

FTP Upload & Download Demo

Jetson Nano Demo

Hardware Connection

Jetson Nano has an onboard USB interface, SIM7600X 4G HAT(B) is connected to the USB interface of Jetson Nano through Micro USB.

Jetson Nano minicom Serial Port Debugging

1. Connect the SIM7600X 4G HAT(B) to the Jetson Nano and turn it on after three seconds 2. Use Template:SERIAL to log in to the Jetson Nano terminal, install minicom, and enter:

sudo apt-get install minicom

3. Run minicom for debugging, and enter in the terminal

sudo minicom -D /dev/ttyUSB2 -b 115200

4. Send AT command to test, exit minicom and press Ctrl+A, then X, and finally press ENTER More demos to be continued...

FAQ

AT+CNMP=38 //Fixed 4G LTE, if there is no local 4G coverage, you may not be able to register to the network

AT+CNBP? //Back up the current frequency band (the returned frequency band information can be copied to notepad, etc.)

AT+CNBP=0x0002000000400183,0x000001E000000000,0x0000000000000021 //After returning OK, measure the speed

AT+CNBP=0x0002000004400180,0x000001E000000000,0x000000000000003F //If the speed does not improve, try this

AT+CGDCONT=1,"IP","CMNET" //CMNET is the apn of China Mobile, which is different for different operators