IoT Basics and Arduino Essentials Quiz

Arduino is an open-source platform for building electronic devices and projects. It uses an easy-to-use hardware board and software for coding.

Arduino boards can receive information from sensors, buttons, the internet, etc. (inputs) and then process it to control motors, LEDs, display information online (outputs).

Arduino boards were initially designed for general-purpose tasks, but now there are specialized boards specifically designed for Internet of Things (IoT) projects.

The Arduino community is large and active, providing support and resources for learners and hobbyists.

Raspberry Pi is a credit-card sized computer that is powerful enough to run a basic operating system and interact with the internet.

Raspberry Pi is ideal for data-heavy IoT applications like collecting data, acting as a central hub, or creating a personal cloud.

While Raspberry Pi is good for complex tasks, it can also be used for simpler IoT projects, making it a versatile option.

A global communication technology capable of overcoming the wide-scale connection issues in IoT by broadcasting signals to multiple locations simultaneously.

The use of Bluetooth technology to track devices in various scenarios like retail, education, and healthcare.

A low-energy version of Bluetooth that enables communication in small-scale IoT devices, such as wearables and beacons.

A device responsible for connecting IoT devices to storage systems, either locally or in the cloud, enabling data exchange and analysis.

A system in development aimed at combining fiber, satellite, and wireless networks to create a comprehensive and robust communication infrastructure.

The use of Bluetooth technology for applications that require short-range communication and low power consumption.

Bluetooth's limitation in transmitting data underwater, making it unsuitable for underwater tracking or communication.

The suitability of Bluetooth technology for indoor tracking scenarios due to its ability to operate with minimal power requirements.

The increasing utilization and expansion of Bluetooth technology in various applications, particularly in vehicles and homes, to enhance convenience and functionalities.

Level sensors detect the amount of substances like liquids, powders, and granular materials.

Level sensors are used in various industries like oil production, water treatment, and food manufacturing.

Gyroscope sensors measure the rate and direction of rotation around an axis. This is called angular velocity.

Gyroscopes are found in cars for navigation and electronic stability control (anti-skid), and are also used in video games and camera stabilization.

Gas sensors detect the presence of toxic, flammable, or harmful gases in the air.

Gas sensors are essential in industries like mining, oil and gas, chemical research, and manufacturing.

Infrared sensors use infrared radiation to detect objects in their environment based on heat emitted by those objects.

Infrared sensors are found in televisions for remote control signals, blood flow monitoring, and even art authentication.

Optical sensors convert light beams into electrical signals, playing a crucial role in various applications.

Optical sensors are used in cars for obstacle detection and lane keeping, and are also found in smartphones.

Zigbee utilizes mesh networking, a self-healing architecture that eliminates the need for hub devices by connecting devices directly to each other, offering greater coverage and improved resilience compared to traditional star topologies.

Zigbee is particularly well-suited for low-data-rate, low-power IoT applications, such as smart homes and building automation systems, making it a viable alternative to Bluetooth Low Energy and other wireless protocols.

Zigbee networks self-configure, meaning they can automatically add or remove devices without manual intervention, allowing for easy expansion and seamless integration of new components.

Zigbee networks consist of three essential components: the coordinator, the router, and the device. The coordinator acts as the central hub, managing data flow and communication. Routers, acting as intermediaries, facilitate data transfer between devices and the coordinator, while devices handle data transmission and reception.

Despite its strengths, Zigbee has a limited range of up to 100 meters, limiting its deployment to comparatively small and close-proximity areas such as homes, offices, or industrial facilities.

An external system or application that reads data from an Arduino board using HTTP requests.

The Arduino Rest API framework allows you to create a web interface for your Arduino board. It lets applications send requests to Arduino, receive responses (like sensor data), and control your project.

Arduino Rest API uses HTTP, which is a synchronous way to communicate. This means that the client sends a request and waits for a response before continuing.

aRest is a library used to build RESTful services for microcontrollers like Arduino, Raspberry Pi, and ESP8266.

The Arduino Rest API makes it easy to read data from your Arduino board's pins using HTTP GET requests.

Using HTTP PUT or POST requests, you can remotely control the values of pins on your Arduino board.

Arduino Rest API allows you to execute functions in your Arduino sketches remotely via HTTP requests.

MQTT uses a publish-subscribe model, where devices (publishers) send data (messages) to a topic, and other devices (subscribers) interested in that topic can receive it.

It allows you to change the color of a Neopixel LED strip using a JSON API call.

Hex color codes use three pairs of hexadecimal characters to represent red, green, and blue values. These are used to define colors in the LED strip example.