The Eufy RoboVac 11S is a budget-friendly vacuum cleaner robot that can be controlled using Raspberry Pi. Despite its affordable price, it offers impressive cleaning performance. The RoboVac 11S features strong suction power and multiple cleaning modes to tackle different types of surfaces. It has a slim design, allowing it to clean under furniture and hard-to-reach areas. The RoboVac 11S also has drop-sensing technology to prevent falls and a large dustbin capacity for extended cleaning sessions. While it doesn't have Wi-Fi connectivity, you can still control it using your Raspberry Pi by connecting it via USB or GPIO pins.