The Internet of Things (IoT) raises specific issues in terms of information and consent, which makes the implementation of the General Data Protection Regulation (GDPR) challenging in this context. In this demo paper, we propose a prototype implementation of a consent and information assistant for the IoT coined CoIoT. This assistant is presented as an Android application called a Personal Data Custodian (PDC), working with devices called BLE Privacy Beacons. CoIoT enables the automatic communication of information about personal data collection, as well as a seamless management of consent to personal data collection.