Maduino Zero SIM808 GPS Tracker is a board based on the Atmel SAMD21 32 bit microcontroller and on the GPS module GPRS / GSM SIM808. Programmable through the Arduino IDE, it can be used to create IOT (Internet of things) projects such as data acquisition, remote controls, GPS locators, etc. It has slots for micro SIM cards and micro SD cards; reset button for the SAMD21 microcontroller; micro USB connector for power supply and PC communica