Smart parking guidance system

Smart parking guidance system with ultrasonic sensor and led indicatiors Main feature: Industrial standard design, adapt to all kinds of bad environment; For parking lot space vehicle real-time detection; Use RS485 communication bus, max can connect 32 pcs ultrasonic sensor; Can not connect the controller to work independently. Control interface( refer shell label) 1. 1 Power and bus communication protocol Power interface RS485 communication interface D—( black) D+( red) B(