This App, Labkit, was developed in order to control devices connected to an Arduino Uno. Through a Bluetooth connection module also connected to the Arduino, we can communicate with the devices via a mobile phone or Android tablet.
Link tutorial: http://www.fernandok.com/2015/07/tutorial-bluetooth-automacao.html

See the video tutorial for home automation used Labkit app: https://www.youtube.com/watch?v=V8ZyVAMdeAk&list=PL9V1cvKoNWB59kOuNwdqp55RsvBHssG_-&index=5

You can also access our channel on youtube!
Animoby Games: https://www.youtube.com/c/animobygamesbr
Fernandok Technology: https://www.youtube.com/channel/UCAT8LN6RwLlnq8ZPDCqSNtw
Fernandok: https://www.youtube.com/channel/UCIRfWLRDsdVOjJfpy6Ne04Q