This user joined on 12/28/2015.
It uses on of the latest and cheap Wi-Fi module from Espressif, the ESP8266-12. Beside, it's possible to directly control two mains loads from the module. And last but not least, it's possible to trigger on the doorbell press.
Just replace the mainboard of the controller with a new design using an Xbee radio. It’s a great project from the workbench of [Marcel] and looks to be just the solution for an awesome Xbee remote control.
You can control your iRobot vacuum cleaner with your smartphone, tablet or computer from anywhere in the world.