How to Use Simcom SIM8200EA-M2 Module with DSBOX-TX2NX? -

How to Use Simcom SIM8200EA-M2 Module with DSBOX-TX2NX?

Jetson TX2 NX

02 March 2022

Hardware: DSBOX-TX2NX

OS: Jetpack 4.6

In this blog post, we will connect mobile broadband with Simcom SIM8200EA-M2 LTE GSM module. First we will enable M.2 Key-B slot’s power. Then, we will connect to the mobile broadband and connect to the internet with using it.

Hint: In this tutorial, we connected our GSM antennas on this module's ANT0 & ANT2 ports.

Enabling M.2 Key-B Slot’s Power

Connect the Simcom SIM8200EA-M2 module & SIM card on DSBOARD-NX2. Then, power up the system.

You can see the mounting direction of nano SIM card on the connector (nano SIM - micro SD card) below.

Open a terminal and type these commands below (the Key-B power pin for TX2 NX is 425, for Xavier NX is 421):

sudo echo 425 > /sys/class/gpio/export
sudo echo out > /sys/class/gpio/gpio425/direction

Then, type “lsusb” after 10 seconds later to check the Simcom GSM module powered on.

Connecting to the Internet

After, the GSM module and mobile broadband enabled & connected successfully, download this module's network configuration app from here to the Jetson module. Open a terminal into the downloaded path & type these commands to rebuild the app:

cd simcom-cm/

If your SIM card's PIN code disabled or unlocked with AT command (AT+CPIN), run the connection app with this command:

sudo ./simcom-cm

Otherwise, use this command:

sudo ./simcom-cm -p {PIN_CODE}

After ~30 seconds, the application will connect to the Internet via "wwan0" network interface. This application should run at the background while using the Internet.

Finally, let’s test it on browser.

Thank you for reading our blog post.