Note
: If you decide to use the hardware UART, make sure to only connect
one of the two modules to the 0/1 pins! If both are connected, bus
contention and data loss will occur.
Hardware Assembly
Now that you’re familiar with the components and inner workings of the
MG2639 Cellular Shield, it’s time for some assembly!
Soldering
You’ll need to solder a header of some kind to the shield, in order to
connect it to your Arduino. Stackable headers are always a popular option
as they allow you to plug additional shields or jumper wires into your
Arduino’s unused pins.
You can also instead use male headers to connect it to the Arduino. If
you’re looking to use the shield as more of a breakout board, you can
solder wires directly to the pins you need.
For more help with shield assembly, check out our Shield Assembly Guide.
Antennae
Both the cellular and GPS functions of the MG2639 require an external
antenna connected to the module. There are two U.FL connectors on the
side of the chip – one labled “GSM” the other “GPS.”
Any of the quad-band cellular antennas below will work with the shield, but
you’ll need a U.FL to SMA adapter to complete the connection.
Quad-band Cellular Duck
Antenna SMA
CEL-00675
Quad-band Wired Cellular
Antenna SMA
CEL-00290
Quad-band Cellular Antenna
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