Use APKPure App
Get Arduino Http Port old version APK for Android
Home automation with Arduino and Ethernet Shield
With the application for home automation Fazendão Portinha, an Arduino board (tested on Uno and Mega) and an Ethernet Shield for Arduino, it is possible to control (connect and / or disconnect) up to 10 devices inside your home. Example: lamps, fans, lamps, sandwich makers and more.
More details (Arduino source code):
http://www.fedablio.com.br/blog/fazendao-portinha-automacao-residencial-com-android-e-arduino/