Podcasts about arduino ethernet

In this second episode of the (open-ended) device-to-cloud series, I'm talking about the four basic patterns of device information exchange and then start investigating the trickiest of these patterns, Commands, using a simple HTTP web service on the Arduino Ethernet board.The four basic patterns are Telemetry, Inquiries, Commands, and Notifications.Telemetry is the flow of information about the current or temporally aggregated state of the device or the state of its environment (e.g. readings from its sensors) from the device to some other party. The information flow is unidirectional and away from the device. Inquiries are questions that the device has about the state of the outside world based on its current circumstances; an inquiry can be a singular query akin to a database lookup, but it might also ask a service to supply a steady flow of information. For instance, the aforementioned toaster will ask for the weather and get a singular response, but a vehicle might supply a set of geo-coordinates for a route and ask for continuous traffic alert updates about particular route until it arrives at the destination. Only the former of these cases is the regular request/response case that HTTP is geared towards. Commands are service-initiated instructions sent to the device. Commands can tell a device to send information about its state – either as a point-in-time observation or over continuously some period – or to change the state of the device, including performing activities with effects in the physical world. That includes, for instance, sending a command from a smartphone app to unlock the doors of your vehicle, whereby the command first flows to an intermediating service and from there it's routed to the vehicle's onboard control system. Notifications are one-way, service-initiated messages that inform a device or a group of devices about some environment state they're otherwise not aware of. Cities may broadcast information about air pollution alerts suggesting fossil-fueled systems to throttle CO2 output – or, more simply, a car may want to show weather or news alerts or text messages to the driver. The Arduino device code used in the video is in this Gist https://gist.github.com/clemensv/6367476[Part 1] [-> Part3] [Part 4] [Part 5]

In this second episode of the (open-ended) device-to-cloud series, I'm talking about the four basic patterns of device information exchange and then start investigating the trickiest of these patterns, Commands, using a simple HTTP web service on the Arduino Ethernet board.The four basic patterns are Telemetry, Inquiries, Commands, and Notifications.Telemetry is the flow of information about the current or temporally aggregated state of the device or the state of its environment (e.g. readings from its sensors) from the device to some other party. The information flow is unidirectional and away from the device. Inquiries are questions that the device has about the state of the outside world based on its current circumstances; an inquiry can be a singular query akin to a database lookup, but it might also ask a service to supply a steady flow of information. For instance, the aforementioned toaster will ask for the weather and get a singular response, but a vehicle might supply a set of geo-coordinates for a route and ask for continuous traffic alert updates about particular route until it arrives at the destination. Only the former of these cases is the regular request/response case that HTTP is geared towards. Commands are service-initiated instructions sent to the device. Commands can tell a device to send information about its state – either as a point-in-time observation or over continuously some period – or to change the state of the device, including performing activities with effects in the physical world. That includes, for instance, sending a command from a smartphone app to unlock the doors of your vehicle, whereby the command first flows to an intermediating service and from there it's routed to the vehicle's onboard control system. Notifications are one-way, service-initiated messages that inform a device or a group of devices about some environment state they're otherwise not aware of. Cities may broadcast information about air pollution alerts suggesting fossil-fueled systems to throttle CO2 output – or, more simply, a car may want to show weather or news alerts or text messages to the driver. The Arduino device code used in the video is in this Gist https://gist.github.com/clemensv/6367476[Part 1] [-> Part3] [Part 4] [Part 5]

Subscribe! is back after a long mid-year (summer-) break and with a new series.Starting with this episode, I'm going to explore a range of embedded systems prototyping platforms and, ultimately, how to connect tiny devices into the cloud for fun, scale, and security. We'll explore how to establish basic connectivity, discuss security options, talk about how to flow and handle telemetry data and how to do remote switching like turning a motor or switching a light from the cloud and do that in a way that it would scale to very, very many devices and poor connectivity conditions.Prototyping platforms allow hobbyists, researchers, and industrial design engineers to explore designs, and wire up and easily program special-purpose devices without soldering or even having to make a printed circuit. Once the design is stable, the prototype can then be turned into an actual device that can be produced at scale.In today's episode I'm going to give an overview of the prototyping platforms I'm going to explore in the upcoming few weeks. I'm initially going to focus on platforms that are cheap to buy and have existing communities, so that you can play along if you like: Arduino, Gadgeteer, Netduino, Android ADK, Seeedstudio Grove, and Raspberry Pi. Later this year, we'll also take a look at prototyping/evaluation platforms for industrial microcontrollers.Today and in the next few episodes, I'll be starting with the Arduino Ethernet board, which I bought as part of a Fritzing Starter Kit. Fritzing.org is an open-source hardware design initiative by the Interaction Design Lab at the University of Applied Sciences in Potsdam, Germany. [Go to Part 2 or Part 3 or Part 4 or Part 5]

Subscribe! is back after a long mid-year (summer-) break and with a new series.Starting with this episode, I'm going to explore a range of embedded systems prototyping platforms and, ultimately, how to connect tiny devices into the cloud for fun, scale, and security. We'll explore how to establish basic connectivity, discuss security options, talk about how to flow and handle telemetry data and how to do remote switching like turning a motor or switching a light from the cloud and do that in a way that it would scale to very, very many devices and poor connectivity conditions.Prototyping platforms allow hobbyists, researchers, and industrial design engineers to explore designs, and wire up and easily program special-purpose devices without soldering or even having to make a printed circuit. Once the design is stable, the prototype can then be turned into an actual device that can be produced at scale.In today's episode I'm going to give an overview of the prototyping platforms I'm going to explore in the upcoming few weeks. I'm initially going to focus on platforms that are cheap to buy and have existing communities, so that you can play along if you like: Arduino, Gadgeteer, Netduino, Android ADK, Seeedstudio Grove, and Raspberry Pi. Later this year, we'll also take a look at prototyping/evaluation platforms for industrial microcontrollers.Today and in the next few episodes, I'll be starting with the Arduino Ethernet board, which I bought as part of a Fritzing Starter Kit. Fritzing.org is an open-source hardware design initiative by the Interaction Design Lab at the University of Applied Sciences in Potsdam, Germany. [Go to Part 2 or Part 3 or Part 4 or Part 5]

Proyecto Sistema de Adquisición de Datos Remoto o Local Flexible por Medio de Arduino-Ethernet e Interfaz Java, Aplicado a la Obtención del Consumo Eléctrico (Autor: Miguel Andrés Martínez Martínez) Universidad Miguel Hernández de Elche Asignatura: Sistemas Informáticos Industriales (5º Ingeniería Industrial) Profesor: David Úbeda González