The Hmi Controller is an application for the Android OS that allows you to connect your Arduino board with your Android device in an easy way, it can be connected over Bluetooth or LAN without the need of understanding nothing about Android programming, also without the need of knowing a lot of functions or writing extended code in your Arduino sketch to make the communication.
Sergio Daniel Castañeda Niño is the official developer of the app which can be found in the Tools category. Over 10K users downloaded and installed HMI Controller for Arduino L and the latest update was on Jan 2, 2018. On Google Play, this application was rated 4.2 by its users.
You are able to download the installation package of HMI Controller for Arduino L 2.1 for free and take a look at users' reviews on Droid Informer. The app runs on Android 4.0.3 and above. The download of the app is 100% secure.
As users mention, you can notice such a drawback of this application as a bad interface.