IoT-based smart garage design with solar power

Solar energy is one of the sources of energy that is not limited and its availability never runs out and this energy can also be used as alternative energy capable of producing electrical energy with the help of solar cells. A solar cell is a device that can convert solar energy into electrical energy by utilizing the photovoltaic effect process, therefore solar cells are also called photovoltaic cells. Especially now that we have entered industry 4.0, where everything is integrated into an application. To utilize solar energy and keep up with industry 4.0, an IoT-based and solar-powered smart garage was designed. This design is a mockup with a size of 40 cm x 40 cm x 40 cm. This design has 3 support systems, namely: the main door system, the small door system, and the kWh Smart Meter (KSM) system. The main door system uses an ESP32 camera to detect QR codes where the barcode functions for vehicle identity, this system uses an ultrasonic sensor HC-SR04 which is useful for knowing the situation inside and outside the garage. The small door system uses an ESP32 camera to recognize faces and ultrasonic sensors to detect human presence in front of a small door. Both systems are integrated into an ESP32. In the KSM system, current sensors and voltage sensors are used, both sensors are useful for knowing the voltage on the battery and for calculating the costs saved when using solar electricity. All sensors are integrated on an ESP32. The two ESP32s are connected to an application that is useful for managing all these systems.