An ESP8266 Wifi Shield for Arduino.

With this GSM Module, you can control devices by sending SMS messages. It is controlled via AT commands and can be integrated with your Arduino projects. Designed for the global market, modules based on the SIM900A feature the GSM/GPRS bands of EGSM 900MHZ and DCs 1800MHz.

Kit with the initial components for your first assemblies with Arduino . It consists of the Arduino UNO R3 (compatible), USB cable, Breadboard, LEDs, Resistors, Conductors and plastic storage box, in a total of 58 pieces.