Well its really a misnomer as this current version doesn't follow lines yet but does have a vision system on the front end, as well as edge detectors at all four corners, touch contacts on the front and remote control. The basic motor running and sensor operation is handled by an Arduino Uno with a sensor shield, which makes connecting everything easy. The vision system and remote control option is provided by an ESP32-CAM which also provided a video feed. Powered from two sources, the camera system by Lithium and the motors by ordinary AA, which isn't ideal and will be replaced by rechargeables at some point.
Does seem to be doing very well for patch cables at present!!