1. Ethernet Shield example

a. Monitoring sensors’ values using Arduino + Ethernet shield  via Thingspeak server

b. Control devices via internet using Arduino, Thingspeak IoT server and Virtuino Android application

2. ESP8266-01 example

Upload sensor values to thingSpeak IoT with esp8266 and arduino 

Monitoring sensors’ values using Arduno + ESP8266-01 via Thingspeak server