The "udpRC" App turns an Android smart device into a feature rich eight channel R/C transmitter. Using the device's build-in WLAN module typically provides for a control range of up to a few hundert feet.
The user interface of the udpRC app is pretty intuitive and straight forward. You can select one of four control modes by touching the respective screen button: button control, a virtual joystick, accelerometer (control by moving the device and a combination between accelerometer and a slider. The wlan connection would be established once the mode has been selected.
The Touch mode offers two virtual joysticks in combination with respective trim and a reverse functions thus providing for a sophisticated and practicable user interface. Additionally, a fail-safe-function protects your model (and others) when communication is lost. And last but not least: you have four additional switching channels (LIGHTS and AUX1 - 3) at your fingertips.
For building your receiver please refer to the PiKoder/SSC wlan receiver page. The App is fully supported by PiKoder/SSC firmware versions > 2.06.