In this video,we are building an IOT based car parking system using NodeMCU, 5 IRsensors and 2 servo motors. 2 IRsensors are used at entry and exit gate to detect the car while three IRsensors are used to detect the parking slot availability. Servomotors are used to open and close the gates according to the sensor value
Full project details are here;
https://www.instructables.com/SMART-C...