Numerous sensors are integrated in smartphones, such as Hall Effect sensors, acceleration sensors, and GPS sensors. With the "CODESYS Sensor App for Android", the data of the most popular sensors can transmitted from an Android based device to a CODESYS controller over an IT network connection In addition, the voice recognition of Android can be used for transmitting recognized words as strings to the controller. When an Internet connection is available, simple speech recognition can be established with the Android device (e.g. smartphone).
The required sample project for CODESYS can be downloaded from the CODESYS Store https://store.codesys.com/codesys-sensor-app-for-android.html