Union Nationale de l'Apiculture Française - Abeilles et Fleurs. Green The Film. Multipurpose Robot: XRB3. XRB3 is powered by an AVR ATMEGA324P micro controller on a custom board that I made. Although he is fully autonomous, he is using an XBEE module to communicate with my PC for debugging (and eventually with other robots). Onboard sensory includes: 3 Sharp IR sensors (for wall following and obstacle detection), an SRF-05 sonar sensor and AVRcam. Sde-n2.pdf (Objet application/pdf)