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it is about iot internet of things
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Solenoid lock: A latch for electrical locking and unlocking is referred to as a solenoid lock. It is offered in locking and keeping and unlocking in the power-on mode types, both of which may be employed in different circumstances. Only when the solenoid is turned on is unlocking possible with the power-on kind. When a power outage or wire cut occurs, a door of this sort is secured and not opened, providing good safety. API Applications can connect with one another using a software interface called an API, or application programming interface. To put it another way, API serves as a messenger, taking your request to the provider (from whom you are asking the resources) and returning with the provider's response. Ubidots API: Ubidots provides developers with a platform that makes it simple for them to gather sensor data and transform it into helpful information. Any Internet-capable device may transfer data to the cloud using the Ubidots platform. Using real-time data and visual tools, developers may then set up actions and alerts. Users may read and write data to the resources accessible via the Ubidots REST API, which has methods for data sources, variables, statistics, events, and insights. Support for Multiple Platforms: Arduino isn't just available on Windows; it's also accessible on Linux and macOS. With the exception of Arduino, most microcontrollers can only be programmed using Windows. Several Libraries: There are several Arduino libraries available for controlling external sensors, modules, and motors. The functionality of Arduino boards may be improved by using these libraries. The user has unlimited flexibility to experiment with hardware and easily change data thanks to libraries. Hardware IoT hardware can be defined as a group of devices that can react, collect data, and execute commands. Below is an example of this type of device that not only collects data, but responds to commands depending on the data processed. Esp 32: ESP32 is a low-cost microcontroller board having a 32-bit microcontroller chip that can run on low power. ESP32 is a better and more powerful microcontroller board than Arduino. ESP32 has inbuilt dual Wi-Fi and Bluetooth support. It has full TCP/IP support for full stack internet connection. Thanks to its Wi-Fi module it can act as an access point as well
as a Wi-Fi station. Because of its 32-bit microcontroller and clock frequency of up to 240MHz it is far ahead than Arduino. ESP32 is the successor of ESP8266 boards created by the same manufacturer. Based on ESP32 cost, size, and power consumption it’s the best fit for an IoT based DIY project. Rf522: The two essential components of an RFID system are a tag attached to the object to be recognised and a reader that scans the tag. A reader is made consisting of a radio frequency module and an antenna that generates a high-frequency electromagnetic field. Tags, on the other hand, are frequently passive devices (it does not have a battery). It has an antenna for receiving and transmitting signals, as well as a CPU for processing and storing data. When the tag is brought close to the scanner, it generates an electromagnetic field. This allows the tag's antenna to conduct electrons, which power the chip. The chip then responds by providing to the reader the stored data in the form of another signal. It's known as backscatter. A computer or microcontroller receives the