Of course, a ‘8266 means it will be carrying WiFi, so this robot needs to have a web interface. [Fredrik’s] first problem was powering the ESP8266. The Roomba’s battery runs around 15 volts ...

Connecting the Roomba to the app is effortless with the app's step-by-step instructions. Just make sure you have good WiFi coverage. The whole setup process, including connecting to the app ...