_buZN8XLiIz.png "coolterm code")
Upload this to your board and open the Serial Monitor. Run the TestModem SketchĬlick the File Menu, Examples submenu, MKRGSM submenu, Tools submenu to find the TestModem sketch. You’ll need to have the right board chosen in the Tools menu (MKR 1400) in order for these examples to show up in the Examples submenu, though.
Coolterm code install#
When you install it, you’ll get a new set of example sketches in the File Menu, Examples submenu called MKRGSM. You can find this in the Arduino IDE’s LIbrary Manager. When accessing GPRS services through the MKR 1400, the login is the Device ID and the password is the Device Key. You’ll also want to take note of the Device ID, APN info, and Device Key. That’s optional for their service, but needed if you want to send and receive SMS messages or phone calls. When you do set up an account, get a SIM card of course, and assign a phone number to it. Their Hologram Maker Edition service is affordable and easy to use.
I used Hologram.io, thanks to recommendations from the rest of the Arduino team and Don Coleman. The GSM Antenna sold on the Arduino Store works well, though any GSM antenna with a SMA male connector should work. You’ll need it to get a good signal even in a well-covered area. I thought “I’ll be fine just to test, there’s good service in my city.” Wrong. It took a few errors and missteps to get here, so I’ll mention those along the way. I’ve been getting to know the MKR GSM 1400 boards better the past few days, and in the process I’ve assembled a “pre-flight checklist” of things you’ll want to do first, in order to make sure everything is ready to go.
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