The document summarizes a seminar presentation on pill cameras. Pill cameras are capsule-sized devices that can be swallowed to take pictures of the digestive tract as they pass through. They provide a non-invasive alternative to endoscopy. The capsule contains a camera, lights, batteries, and transmitter to send over 50,000 color images as it travels through the digestive system. It has advantages like being painless, allowing imaging of the entire small intestine, and providing high quality images. However, it could get stuck if there is an obstruction and is difficult to control. New technologies aim to overcome issues like using a rice-grain sized motor or bi-directional telemetry camera. In conclusion, pill cameras have revolutionized diagnostic imaging