B9X Electronics Documentation B9X Basic Language Reference A complete guide to B9X Basic v1.03, including language syntax, variables, control flow, user functions, GPIO, storage, MQTT, audio, OpenAI services and real-time VoIP through B9X Voice Server. Version 1.03 Required function-return syntax Every function returns a value. A numeric/double-returning function must be used in a numeric assignment. … Continue reading B9X Basic