Not quite
ADS-B is not FLARM. FLARM is a technology that is widely used to increased situational awareness and conflict detection in the European soaring community. It operates using a low-power radio (in the public spectrum) and conflict detection algorithms with traffic alerting to users about other FLARM equipped aircraft.
Though FLARM algorithms may potentially utilize ADS-B messages, the two radio systems and their messages are not interoperable. ADS-B is a surveillance technology designed to support a broad range of aviation applications to improve aircraft safety, aviation system efficiency and capacity. Additionally, ADS-B is a world-wide adopted standard for the next generation surveillance.