ADAFRUIT FONA 808 - MINI CELLULAR GSM + GPS BREAKOUT

Product Details

Here's the GPS specifications:

22 tracking / 66 acquisition channels
GPS L1 C/A code
Sensitivity: Tracking: -165 dBm, Cold starts : -147 dBm
Time-To-First-Fix: Cold starts: 32s (typ.), Hot starts: 1s (typ.), Warm starts: 5s (typ.)
Accuracy: approx 2.5 meters
Sounds delicious, right? So we plated this fine module onto a little breakout with all the extras you need to make your next project shine:

Onboard LiPoly battery charging circuitry so you can take your project on the go. Use any 500mAh+ LiPoly or LiIon battery and recharge over the MicroUSB when necessary. Two LEDs let you know when its charging and done
Standard 4-pole TRRS headphone jack. Use any 'Android' or 'iPhone'-compatible headset with mic
Breakouts for external 32? speaker and electret mic if you don't want to use a headphone
Level shifting circuitry so you can run it with 2.8V to 5V logic.
Vibrational motor (buzzer) driver so you can have noiseless notifications
uFL connections for external antennas
Indicator LEDs for power and network connectivity
Standard SIM slides into the back
On its own, this module can't do anything. It requires a microcontroller to drive it! We suggest and use an Arduino but any 3-5V microcontroller with a UART can send and receive commands over the RX/TX pins.

You will also need some required accessories to make FONA work. These are not included!

Required SIM Card! A 2G Mini SIM card is required to do anything on the cellular network.
Required Lipoly Battery - 500mAh or larger! This 500mAh battery, or this 1200mAh will work great.
MicroUSB cable for charging the battery.
External uFL GSM Antenna - this slim one works great.
(or, if you want to us an SMA antenna - a uFL to SMA adapter cable.)
External uFL Passive GPS Antenna - like this one!
There's also some recommended accessories. They are not required but chances are you'll want them!

TRRS 4-Pole Headset - Any 'iPhone' or 'Android' compatible (but not iPhone original) should work. We tried about 10 different ones, and basically the more expensive once are more comfortable and louder but our official iPhone headset mic did not work.
Vibrating motor - the FONA can drive this directly, just solder a mini vibrating motor disc in!
USB console cable - the microUSB connector is for charging only, but you can wire up a console cable for direct-connection to the module if you want to send commands from a terminal (great for testing and tweaking)