Adafruit FONA 3G Cellular Breakout - American version Without Free Ting Sim Card Shipping:1 day and includes current sense circuitry

and includes current sense circuitry

even the high precision RTK solution can be increased to 20Hz

Our awesome tutorial and Arduino library will let you set the AGC configuration (you can also just turn it off)

1 ms to update 30 LEDs

The ESP8266 is a cost-effective

Adafruit FONA 3G Cellular Breakout - American version Without Free Ting Sim Card Shipping:1 day and includes current sense circuitryFor those who want to take it to the next level we now have a 3G Cellular Modem breakout! The FONA 3G has better coverage, GSM backwards compatibility and even sports a built in GPS module for geolocation & asset tracking. This all in one cellular phone module with that lets you add location tracking, voice, text, SMS and data to your project in a single breakout. If you want the version that comes with a free Ting 2G SIM Card, click here! This