Archive for category Embedded Microcontrollers

Controlling the Servo using a Windows Phone application

Posted by Marco Minerva in Embedded Microcontrollers, REST Web Services on January 6, 2012

Posted by Marco Minerva In the post Using a Servo in a .NET Gadgeteer Camera Device we saw how to create a .NET Gadgeteer application that uses a Servo to change the direction of the Camera, takes a photo and uploads it to a Web Service. Now, we’ll realize a Windows Phone application to remotely […]

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Seeed Temperature Humidity Sensor with OLED Display

Posted by Michael Dodaro in Embedded Microcontrollers on January 2, 2012

The modules available for .NET Gadgeteer now include some interesting modules by Seeed Studio.  This example uses two of them: Temperature Humidity Sensor OLED Display The application code is very simple, as shown in the following block. Note: Don’t use higher voltage than needed to drive components.  Excess power is dissipated as heat.  After running this example for […]

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Usare un servomeccanismo per orientare la videocamera con .NET Gadgeteer (Italiano)

Posted by Marco Minerva in Articoli in Italiano, Embedded Microcontrollers, REST Web Services on December 23, 2011

By Mike Dodaro, translated by Marco Minerva from the original English version. L’interfacccia Gadgeteer.Interfaces.PWMOutput permette l’utilizzo di un servocontrollo per muovere le parti meccaniche di un device, secondo le esigenze delle applicazioni. Questo esempio dimostra l’uso dell’interfaccia Gadgeteer.Interfaces.PWMOutput e di un servomeccanismo per girare la videocamera su un arco di circa 140 gradi. Il valore […]

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Using a Servo in a .NET Gadgeteer Camera Device

Posted by Michael Dodaro in Embedded Microcontrollers, REST Web Services on December 22, 2011

The Gadgeteer.Interfaces.PWMOutput interface can support the use of a servo to move mechanical parts of a device as needed by applications. This example uses the Gadgeteer.Interfaces.PWMOutput interface and a servomechanism to turn a camera through an arc of about 140 degrees.  The Pulse Width Modulation (PWM) input for this servo is obtained from a WCF REST Web service running on a remote IIS Server.  The […]

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.NET Gadgeteer Gyro Module from Seeed Studio

Posted by Michael Dodaro in Embedded Microcontrollers, REST Web Services on December 15, 2011

Here’s an example that graphically displays data from the Seeed Gyro module for .NET Gadgeteer.  The GHI Electronics Display_T35 module displays the output. Plug the Gyro module into Socket 3.  Connect the display module and a button in the .NET Gadgeteer designer, but do not connect the optional touch-screen cable to Socket 10.  Apparently the touch screen is incompatible with the Seeed Gyro and […]

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XML Configuration Files for .NET Micro Framework Applications (English)

Posted by Michael Dodaro in Embedded Microcontrollers on December 14, 2011

By Marco Minerva, translated Mike Dodaro from the original Italian version. All applications require configuration files; we use them to customize behavior and to set parameters unknown at compile time, or those that may change over time (such as the database connection string, the address of the mail server, etc.). .NET supplies the class ConfigurationManager, or WebConfigurationManager for Web applications, to […]

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File di configurazione XML per applicazioni .NET Micro Framework (Italiano)

Posted by Marco Minerva in Articoli in Italiano, Embedded Microcontrollers on December 14, 2011

Tutte le applicazioni necessitano di file di configurazione: li utilizziamo per personalizzare il loro comportamento e per impostare parametri non noti in fase di compilazione, o che possono cambiare nel tempo (come la stringa di connessione al database, l’indirizzo del server di posta elettronica, ecc.). .NET fornisce la classe ConfigurationManager (o WebConfigurationManager, nel caso di […]

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Sending .NET Gadgeteer Sensor Data to a REST Web Service

Posted by Michael Dodaro in Embedded Microcontrollers, REST Web Services on December 13, 2011

Sending data to a Web service from a device with an embedded microprocessor is a very common and useful scenario.  This example demonstrates the procedures using the .NET Gadgeteer Pulse Oximeter manufactured by Seeed Studio and a REST Web service implemented on the Windows Communication Foundation (WCF) platform. This post has been updated to use HttpHelper.CreateHttpPostRequest. The Seeed Pulse […]

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Soluzione temporanea per l’errore su KeyboardConnected con il modulo USBHost (Italiano)

Posted by Marco Minerva in Articoli in Italiano, Embedded Microcontrollers on December 11, 2011

By Mike Dodaro. Translated by Marco Minerva from the original English version. Come illustrato nel post Soluzione temporanea Soluzione temporanea per il corretto funzionamento del modulo Ethernet_J11D, diversi problemi possono essere risolti utilizzando direttamente le NETMF API fornite da GHI Electronics invece del più recente Gadgeteer SDK. Provando ad utilizzare il modulo USBHost, ad esempio, […]

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Soluzione temporanea per il corretto funzionamento del modulo Ethernet_J11D (Italiano)

Posted by Marco Minerva in Articoli in Italiano, Embedded Microcontrollers, REST Web Services on December 11, 2011

By Mike Dodaro.  Translated by Marco Minerva from the original English version. Allo stato attuale dello sviluppo, il modulo GHI Electronics Ethernet_J11D, in alcune configurazioni, potrebbe non funzionare correttamente utilizzando le librerie incluse nel .NET Gadgeteer SDK. I motivi del problema sono spiegati in questo post: http://www.tinyclr.com/forum/21/5010/. Non è ancora stato rilasciato un aggiornamento ufficiale […]

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Finding Files on an SD Memory Card (English)

Posted by Michael Dodaro in Embedded Microcontrollers on December 9, 2011

By Marco Minerva.  Translated by Mike Dodaro from the original Italian version. .NET Gadgeteer makes useful APIs available to interact with an SD memory card in a module such as this SD Card Module available from GHI Electronics. It is possible to get a list of files, directories, to create files, and to read and write to them. Missing […]

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Cercare file su una memory card SD (Italiano)

Posted by Marco Minerva in Articoli in Italiano, Embedded Microcontrollers on December 8, 2011

.NET Gadgeteer mette a disposizione una comoda API per interagire con le memory card SD collegate alla scheda attraverso il modulo SD Card: è possibile recuperare la lista dei file, delle directory, creare cartelle, leggere e scrivere file. Manca però un metodo che restituisca solo i file con una certa estensione. Vediamo quindi come aggiungere […]

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Interim Solution to KeyboardConnected error USBHost Module

Posted by Michael Dodaro in Embedded Microcontrollers on December 8, 2011

The previous post: Interim Solution to Ethernet_J11D Failure led to a Eureka moment for me.  I was running my daily slog, not in the bath like Archimedes, but it occurred to me that other problems might be solved by using the NETMF API provided by GHI Electronics instead of their newer Gadgeteer SDK.  I hit a dead end  with the […]

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Interim Solution to Ethernet_J11D Event Failure

Posted by Michael Dodaro in Embedded Microcontrollers, REST Web Services on December 8, 2011

At this stage of development, the NetWorkUp event of GHI Electronics Ethernet_J11D module does not work with the latest .NET Gadgeteer SDK. The reasons are explained in the forum thread here: http://www.tinyclr.com/forum/21/5010/  The fix is not public yet. GHI has good documentation, so I adapted code from their example in the topic: Ethernet Class.  So far, the ethernet class […]

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Il Designer di .NET Gadgeteer (Italiano)

Posted by Marco Minerva in Articoli in Italiano, Embedded Microcontrollers on December 7, 2011

By Mike Dodaro, translated by Marco Minerva from the original version in English. Il Designer di .NET Gadgeteer per Visual Studio permette di assemblare graficamente i componenti del sistema Gadgeteer. Questo esempio mostra alcuni dei moduli .NET Gadgeteer inclusi nel GHI Electronics FEZ Spider Starter Kit, che comprende una scheda FEZ Spider con processore ARM7. […]

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A TCP Server using .NET Gadgeteer

Posted by Michael Dodaro in Embedded Microcontrollers, REST Web Services on December 5, 2011

By Marco Minerva, translated by Mike Dodaro from the original version in Italian.  .NET Gadgeteer offers to a very simple method to create a web server that will respond to GET requests, using the SetupWebEvent function supplied by Ethernet module as implemented by GHI Electronics. Examples are available on this blog, as in the post: .NET Gadgeteer Web Services; Picture, Audio, Application. If […]

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Un Server TCP con .NET Gadgeteer (Italiano)

Posted by Marco Minerva in Articoli in Italiano, Embedded Microcontrollers, REST Web Services on December 5, 2011

.NET Gadgeteer offre un metodo molto semplice per creare un web server in grado di rispondere alle richieste GET, attraverso la funzione SetupWebEvent fornita dall’API del modulo Ethernet di GHI Electronics. Esempi di tale sistema sono disponibili su questo stesso blog, ad esempio nel post .NET Gadgeteer Web Services; Picture, Audio, Application. Se, invece, lavoriamo […]

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Web Service REST per registrare dati da un sensore .NET Gadgeteer (Italiano)

Posted by Marco Minerva in Articoli in Italiano, Embedded Microcontrollers, REST Web Services on December 1, 2011

Translated by Marco Minerva from the English version by Michael Dodaro Questo esempio mostra come inviare messaggi da un’applicazione .NET Gadgeteer verso un Web service REST che registra i dati sull’attivazione di un sensore. In questo caso il sensore è il Light Sensor implementato in uno dei precedenti post. Il messaggio è semplicemente un identificativo […]

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Seeed Pulse Oximeter .NET Gadgeteer Module

Posted by Michael Dodaro in Embedded Microcontrollers on November 30, 2011

The Seeed Pulse Oximeter is a monitoring device that measures pulse and noninvasively detects oxygen saturation of the blood.  This post demonstrates use of the Pulse Oximeter in a .NET Gadgeteer application. Plug the PCB module into a mainboard socket that has the U label.  This example uses socket number 8 on the GHI Electronics Fez Spider mainboard.  (Do not […]

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A ProgressBar for .NET Gadgeteer (English)

Posted by Michael Dodaro in Embedded Microcontrollers on November 29, 2011

English translation by Mike Dodaro of Italian version by Marco Minerva. As pointed out in a previous post, the graphical controls that ship with .NET Gadgeteer can be used to create more complex objects. Today we see how to implement a ProgressBar that displays the progress of an operation, as shown in the following video. The code that supports this scenario […]

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