RollBot: An Automatic Curtain Opener Robot

This study presents an automatic curtain opener robot, which can be configured using a smartphone for hotel establishments. Users have the flexibility to open the curtain either at specific points or entirely. Additionally, the device can be programmed to open the curtains automatically based on preset times. A microcontroller controls the overall functionality of the device. Here, a mobile app was created using MIT App Inventor and is essential for operating the various control features. The app requires Bluetooth connectivity with the device for the configuration. Testing involved the connectivity between a smartphone and the device, the response of the device to the specified preset times, and its performance in manually opening and closing the curtain through the application. The results demonstrate a 100% accuracy rate for manual operations. Furthermore, the device successfully connected with all tested Android phones. Evaluation was also conducted to assess the developed robot’s accuracy in opening the curtain based on distance, yielding a 99.22% accuracy rate from the tests.