Android, iOS mobile application using raspberry PI

Applications basic essence is to ensure the transfer of data between the Raspberry PI and mobile device. Is supplied relay panel ON and OFF signals and show the relay status. This operation is used for General-purpose input / output ports (GPIO). This data application server, or the side of an IPI program application data can be retrieved from the system of the bash commands. For example GPIO WRITE 10 1. What shows that the tenth expenses are activated. This part of the application's button names are interchangeable names for the customer in the future can be identified more easily their devices. Button names stored in the server-side program. Light dimmer function is similar to a relay panel function, with the possibility of transferring to turn on or off signal, as well as a dimmer function that transfers to the RPI bash command with the set dimmer value. For example 1-100. Turning virtual dimmers as the 35, inside the RPI make (command 35). The figures do not appear in the program side of it is hidden value of brightness for dimmer. The activation button (ON OFF) show light dimmer status is on or is not turned on, the dimmer button names can be changed such as relay button names. Program data connection occurs in two ways. If a user with a phone WIFI sign at RPI wifi point, application works through WIFI router IP address, but if such a connection does not, then through the GSM telephone network and the real IP address Connection to RPI is authorizing with the username and password stored in the RPI. There should be a separate section where you can change the settings for WiFi and GSM modem settings. These settings are stored in text files on the RPI. It is important to choose the proper data transfer protocol. We are convenient to use http, then the server side would suffice with minor PHP files that generate and receive data from the RPI. Reading the GPIO port, Dimmer management, GSM and WiFi configuration file reading and restart the service. Button name and change user passwords. Easier would be to provide data connectivity via an external server.