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The word() function converts a variable of any data type to the word data type. It is essentially a cast function.SyntaxThe syntax is −word(var)Where var is a variable of any datatype.Alternatively, you can also construct a word by specifying two bytes, the higher byte and the lower byte.SyntaxThe syntax is −word(highByte, lowByte)For instance, word(2,5) will return 517 (2 is 0b00000010 and 5 is 0b00000101; word(2,5) will return 0b0000001000000101, which equals 517).You can try out other combinations of characters and data types. You can read more about the word function from Arduino’s official documentation here.
A word, very simply put, is an unsigned number of 2 bytes (or 16 bits). Thus, it can take in values from 0 to 65535.Note that this definition is very microcontroller specific. In pure terms, a word is the amount of data a machine can process at a time, and it depends on the specifications of the machine.For example, instead of Arduino Uno, if you use the ESP32 board, the word becomes a 32-bit unsigned int instead of 16-bit. This is because ESP32 has different specifications compared to Arduino Uno. int sizes on ESP32 are also larger than Arduino.So, the ... Read More
Arduino IoT Cloud is a service that tries to make it seamless to convert your Arduino devices into IoT devices.Any IoT device typically gathers data from sensors, does some processing onboard, and transmits either the raw or the processed data to a server. Arduino IoT Cloud allows you to generate a digital twin of your device (called as a thing), add variables and settings to that digital twin, and then generates the Arduino Sketch automatically which you can upload to the device. Thus, you essentially don’t need to write the Arduino Sketch yourself.What’s more, it also provides dashboards and widgets ... Read More
In order to use WiFi with Arduino Uno, or any other board, you may need to get a WiFi shield(unless you are using a board with built-in WiFi capabilities, like Arduino Uno WiFi). The WiFi shield, like any other shield, stacks up on your board, and provides access to the pins of Arduino on the shield itself.You can read more about the WiFi shield here −www.arduino.cc/en/pmwiki.php?n=Main/ArduinoWiFiShieldhttps://www.arduino.cc/en/Guide/ArduinoWiFiShieldAssuming you have a WiFi shield with you, you will need the WiFi library to get started. You don’t need to download it separately; it will be built-in in your IDE. If you don’t get ... Read More
Computer ArchitectureThe architecture defines those attributes of the system apparent to the programmer or those attributes that directly force the program’s logical execution. It manage with the functional behavior of the computer system view by the user.Computer Architecture manages with the system’s programming part, including the multiple bits can define the several data types, input-output methods, approaches for addressing memory, and the computer’s instruction set. The implementation of any program is influenced by these qualities of architecture. The change in a bit or size can lead to a different result for the programmer.Computer OrganizationComputer organization can study the basic computer ... Read More
In order to use WiFi with Arduino Uno, or any other board, you may need to get a WiFi shield(unless you are using a board with built-in WiFi capabilities, like Arduino Uno WiFi). The WiFi shield, like any other shield, stacks up on your board, and provides access to the pins of Arduino on the shield itself.You can read more about the WiFi shield here −www.arduino.cc/en/pmwiki.php?n=Main/ArduinoWiFiShieldhttps://www.arduino.cc/en/Guide/ArduinoWiFiShieldAssuming you have a WiFi shield with you, you will need the WiFi library to get started. You don’t need to download it separately; it will be built-in in your IDE. If you don’t get ... Read More
Myrinet is a high-performance, packet-communication, and switching technology. It was produced by Myricom as a high-performance alternative to conventional Ethernet networks. Myrinet switches are multiple-port components that route a packet entering on an input channel of a port to the output channel of the port selected by the packet.Myrinet switches have 4, 8, 12, 16 ports. For an n-port switch, the ports are addressed 0, 1, 2... n - 1. For any switching permutation, there may be as many packets traversing a switch concurrently as the switch has ports. These switches are implemented using two types of VLSI chips such ... Read More
Ethernet is a packet-switched LAN technology introduced by Xerox PARC in the early 1970s. Ethernet was designed to be a shared bus technology where multiple hosts are connected to a shared communication medium. All hosts connected to an Ethernet receive every transmission, making it possible to broadcast a packet to all hosts at the same time.Ethernet uses a distributed access control scheme called Carrier Sense Multiple Access with Collision Detect (CSMA/CD). Multiple machines can access an Ethernet at the same time. Each machine senses whether a carrier wave is present to determine whether the network is idle before it sends ... Read More
A cluster is a collection of stand-alone computers connected using some interconnection network. Each node in a cluster could be a workstation, personal computer, or even a multiprocessor system.A node is an autonomous computer that may be engaged in its private activities while at the same time cooperating with other units in the context of some computational task. Each node has its input/output systems and its operating system.When all nodes in a cluster have the same architecture and run the same operating system, the cluster is called homogeneous, otherwise, it is heterogeneous. The interconnection network could be a fast LAN ... Read More
Parallel applications can be designed using the client/server model. A client may divide a big application into several smaller problems that can be processed by multiple servers simultaneously. All the servers compute the solution to their respective problems and send their results to the client.The client assembles the results from each server and outputs the final result to the user. The client acts as the master (supervisor) while the servers act as the slaves (workers) in the master-slave (supervisor-workers) model as shown in the figure. The steps are taken at the client and each server is summarized as follows.Client (Supervisor)Client ... Read More