It is designed to test and learn programming wireless communication collect data from wireless sensors, logging to sd card and make voice announcements with preloaded wav files (number, sentences and music) With I2C connecion to https://hackaday.io/project/88304-simple-and-universal-plc-for-smart-home is posible make realy smart home :)
Wireless: -NRF24L01 -RFM12 -RFM69
Display: -EADOGS102 - graphics -1602 standard character display -Back-light controll
Talking, wave playback: (same as wave shield) -microSD -SPIDAC -LM386
Control: -3butons -rotary encoder
i/o: -optically isolated input -relay output
I2C: -EEPROM -DS3231 RTC -2X I2C header
I am using similar board to control ring in school