wants a minimum of three bucks a month with no contract.
Basically, T-Mobile treats the GSM click just like a prepaid
Photo 4 is a close-up shot of my GSM click board
sporting a T-Mobile SIM card. I also mounted a small
rubber-ducky-like antenna on the GSM click that is
not shown in the photo. The antenna part number is
Here we go. I dialed the phone number assigned to
the Ting SIM. The automated response informed me that
my call was not completed. That’s good. If the GSM click
had not answered, I would have been pushed into voice
mail and asked to leave a message.
A few seconds later, I heard a “ding” alerting me to the
text message you see in Photo 5 that had just arrived on
Tip of the Iceberg
You’re thinking what I’m thinking. With some tricky
programming, SMS messages
can be used for remote
control and remote sensor
monitoring. We’re not done
with GSM. However, you can
now add the GSM click and EasyPIC Fusion v7 to your
Design Cycle. NV
ADVANCED TECHNIQUES FOR DESIGN ENGINEERS
n PHOTO 4. This is a backside shot of my GSM click
with a T-Mobile SIM card
n PHOTO 5. The iPhone is
one expensive terminal.
However, it’s worth every
penny when we can use it as
a GSM data collection point.
EasyPIC Fusion v7
mikroC Pro for PIC32
May/June 2018 75