The Latest ESP8266 has WiFi and TCP/IP stack to get a microcontroller on the Internet.

This little unit can transmit over 1500 Meters and has been tested to penetrate

2.4GHz transceiver has improved range, sensitivity, and data rates.

Transmit over 1500 Meters and has been tested to penetrate up to 8 floors.

Tiny little module has WiFi and TCP/IP stack to get a microcontroller on the Internet.

Simple kit for wireless data transmission via 433mhz band.