Did anyone saw the cars on parking lot?  When the fireball exploded, suddenly the cars on alarm system automatically turned on. You will see headlights flashing. Why is that happened?

Supra

Here is new one...very cheap.

https://www.sparkfun...products/11651?

Here is video demo:

hello, We are upgrading to 4.3 but now we get a error bitwise shifting in Visual Basic to get the time from a NTP time server. This is old code and always worked in 4.2

 

 

 

Dim lIntPart As Long = 0 Dim lFractPart As Long = 0

For i As Integer = 0 To 3 lIntPart = (lIntPart << 8) Or ntpData(bOffsetTransmitTime + i) Next   For i As Integer = 4 To 7 lFractPart = (lFractPart << 8) Or ntpData(bOffsetTransmitTime + i) Next  

 

Error 1 Type 'System.Nullable(Of )' is not defined. (The error is under the << 8)

 

Does anyone knows why and also there is a buildin function in the SDK 4.3 for calling the time server.

How can we call this function?  

You cannot use Or inside looping;

Only block IF/then ELSE condition.

SUpra.

hello, We are upgrading to 4.3 but now we get a error bitwise shifting in Visual Basic to get the time from a NTP time server. This is old code and always worked in 4.2

 

 

 

Dim lIntPart As Long = 0 Dim lFractPart As Long = 0

For i As Integer = 0 To 3 lIntPart = (lIntPart << 8) Or ntpData(bOffsetTransmitTime + i) Next   For i As Integer = 4 To 7 lFractPart = (lFractPart << 8) Or ntpData(bOffsetTransmitTime + i) Next  

 

Error 1 Type 'System.Nullable(Of )' is not defined. (The error is under the << 8)

 

Does anyone knows why and also there is a buildin function in the SDK 4.3 for calling the time server.

How can we call this function?  

Public Shared Function GetNetworkTime() As DateTime	Dim ep As New IPEndPoint(Dns.GetHostEntry("time-a.nist.gov").AddressList(0), 123)	Dim s As New Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp)	s.Connect(ep)	Dim ntpData As Byte() = New Byte(47) {}	' RFC 2030	ntpData(0) = &H1b	For i As Integer = 1 To 47		ntpData(i) = 0	Next	s.Send(ntpData)	s.Receive(ntpData)	Dim offsetTransmitTime As Byte = 40	Dim intpart As ULong = 0	Dim fractpart As ULong = 0	For i As Integer = 0 To 3		intpart = 256 * intpart + ntpData(offsetTransmitTime + i)	Next	For i As Integer = 4 To 7		fractpart = 256 * fractpart + ntpData(offsetTransmitTime + i)	Next	Dim milliseconds As ULong = (intpart * 1000 + (fractpart * 1000) / &H100000000L)	s.Close()	Dim timeSpan__1 As TimeSpan = TimeSpan.FromTicks(CLng(milliseconds) * TimeSpan.TicksPerMillisecond)	Dim dateTime As New DateTime(1900, 1, 1)	dateTime += timeSpan__1	Dim offsetAmount As TimeSpan = TimeZone.CurrentTimeZone.GetUtcOffset(dateTime)	Dim networkDateTime As DateTime = (dateTime + offsetAmount)	Debug.Print(networkDateTime.ToString())	Return networkDateTimeEnd Function

Supra.

What does parameter do?

spi[color=rgb(102,102,0);].[/color][color=rgb(102,0,102);]Write[/color][color=rgb(102,102,0);]([/color][color=rgb(0,0,136);]new[/color] [color=rgb(0,0,136);]byte[/color][color=rgb(102,102,0);][][/color] [color=rgb(102,102,0);]{[/color] [color=rgb(0,102,102);]1[/color][color=rgb(102,102,0);],[/color] [color=rgb(0,102,102);]2[/color][color=rgb(102,102,0);],[/color] [color=rgb(0,102,102);]3[/color] [color=rgb(102,102,0);]});[/color]

[color=rgb(102,102,0);]Supra[/color]

Thank you, Chris.

NO more "checkiing your hardware". Worry free.      

Here's the direct link:
http://www.netduino....no2firmware.zip

Chris

I got message from webiste.....................Oops! This link appears to be broken.

I think I may have come across a bug when using the ShieldBase in a project.

 

Start a new VS project using the new 4.2.2 SDK on a Go! and ShieldBase running the latest versions of NETMF and ShieldBase update 5.  Connect the ShieldBase to socket 5.  Now I am using the Komodex module (I'm sure Chris has one ) to show that there is some activity.  My application looks like this:

 

 

using System.Threading;using Komodex.NETMF;using NetduinoGo;namespace ShieldbaseBug{    public class Program    {	    public static void Main()	    {		    ShieldBase sb = new ShieldBase((GoBus.GoSocket) 5);		    SevenSegmentDisplay display = new SevenSegmentDisplay();		    while (true)		    {			    for (int counter = 0; counter < 9999; counter++)			    {				    display.SetValue(counter);				    Thread.Sleep(200);			    }		    }	    }    }}

 

 

Deploy the application to the Go! and you should see the module start counting.  Now stop the debugger and the app should keep on counting.  Unplug the Go! and then plug it back in to the PC.  Wait a while and nothing happens.  The app does not start running.

 

Now comment out the declaration of sb and repeat.  The app starts counting in both cases.

 

Bug or am I missing something?

 

Regards,

Mark

I had same problem when unplug the NGo! and then plug it back in to the NGO.

@RobinBones

"The windows 8 computer also has VS 2012 installed.I am not sure if that could be a factor. Any Ideas on how to get the VB.NET project types working?"

The VS 2012 is 64-bit only, and computer must be 64 bit. And not 32 bit

I am using VS 2010/XP with 32 bit. And cannot upgrading to Window7/8.

So i have to buy new computer that comes with 64-bit and USB 3.0.

Supra

(**) STM32F405 has hardware Digital Camera Interface, up to 54 MB/s. But it's not supported in the current version of .NET MF and the necessary pins are not available on any of Secret Labs boards.

 

Looking @ datasheet stating that STM32F405 doesn't support interface with camera module. Only STM32F407 insterface with camera module.

READ DATASHEET.

Gutworks stating that " Gadgeteer has a Camera module for their NEMTF boards".........that is FEZ HYDRA.  It incorporates a 240Mhz AT91SAMRL ARM9 processor.

Supra

https://www.sparkfun.com/products/8839

http://www.made-in-c...e-SM-201B-.html

Wiring:

http://www.dfrobot.c...ect_DFR0154.png

You are connecting wrong input (yellow and green). Try digital pins

Hi Chirs,

But why NGO is not working when I power off and power on USB again?

supra

Hi,

 

I wired up 1 button using this http://arduino.cc/en/tutorial/button.  It works great.  

 

However, I want to wire up more than 1 button.  So I want button 1 to trigger D0 and button 2 to trigger D1 for example.

 

Anyone have any ideas?

 

Thanks!

 

Carsten

Here is better one:

http://www.instructa...-shield-part-2/

Tutorial for newbie more buttons:

http://www.instructa...ino-Simon-Says/

HTH.

Supra

do you have a logic analyzer that you can hook up to the pins to analyze the SPI data pattern which you're outputting from the shield base pins? Chris

No.

I Added 3 leds for each clocks. By monitoring each clocks and see if the clocks is working or not.

Hi supra, That's great additional info; thank you. With the 4.2.2 firmware, Netduino Go's USB name has changed to "Netduino" (instead of "NetduinoGo"). This is to enable new and future capabilities. To update the deployment target for your device. 1. In Visual Studio, open up "Project Properties > .NET Micro Framework". 2. Change the transport from USB to Serial. 3. Change the transport from Serial to USB. 4. If it is not already selected, select "NetduinoGo_Netduino" as the target device. 5. Save your project. That should get you back up and running; let me know how it goes! Chris

Thank, Chris. I got USB device working. All I see is Netduino instead of NetduinoGO, as I understand.        

But what happen! When I power off usb and power on usb again. The clocks such as data, latch and clock are  not working. But same as above #4.

Can you give me any hints as posting #4?

Supra

When I power on usb. The led is stay on but the LEDs not moving. Is something wrong with SPI?

------ Deploy started: Project: DHT22TestApplication, Configuration: Debug Any CPU ------ Unable to communicate with device - USB:Netduino

========== Build: 2 succeeded, 0 failed, 0 up-to-date, 0 skipped ========== ========== Deploy: 0 succeeded, 2 failed, 0 skipped ==========

Thank goddness. I still had same  error problem. But mine had one failed

Sorry chris.

I converted from Arduino To NGO.

Here is link:http://arduino.cc/en...orial/ShftOut22

schematic:http://arduino.cc/en/Tutorial/ShiftOut Look for 16 leds

Here is my source code:

using System;using System.Threading;using Microsoft.SPOT;using Microsoft.SPOT.Hardware;using SecretLabs.NETMF.Hardware.NetduinoGo;using NetduinoGo;namespace Knight_rider_3{    public class Program    {                   public static Int32 i = 0;            public static bool  pinState;            public static void Main()            {                // write your code here                ShieldBase sb = new ShieldBase(GoSockets.Socket5);                //Pin connected to ST_CP of 74HC595 to NGO of pin 10                OutputPort _latch = new OutputPort(sb.Pins.GPIO_PIN_D10, false);                 //Pin connected to DS of 74HC595 to NGO of pin 11                OutputPort _data = new OutputPort(sb.Pins.GPIO_PIN_D11, false);                  //Pin connected to SH_CP of 74HC595 to NGO of pin 13                OutputPort _clock = new OutputPort(sb.Pins.GPIO_PIN_D13, false);                 //function that blinks all the LEDs                //gets passed the number of blinks and the pause time                while (true)                {                    // light each pin one by one using a function A                    for (Int32 j = 0; j < 16; j++)                    {                        //red LEDs...Left to Right                        lightShiftingPinA(16- j, _data, _clock, _latch);                                               //green LEDs.... Right to Left                        //lightShiftingPinA(j+1, _data, _clock, _latch );                                              // Thread.Sleep(10);                    }                    // light each pin one by one using a function B                    for (Int32 j = 0; j < 16; j++)                     {                    //red LEDs....... Right to Left                     lightShiftingPinB(j + 1, _data, _clock, _latch );                     //green LEDs...Left to Right                     // lightShiftingPinB(16 - j, _data, _clock, _latch );                    //return the latch pin high to signal chip that it no longer needs to listen for information                    // _latch.Write(true);                                          Thread.Sleep(10);                    }                           }            }        static void Shiftout(Int32 value, OutputPort data, OutputPort clock, OutputPort latch)        {            for(Int32 i = 0; i < 17; i++)            {                Int32 mask = 1;                mask = 1 << i;                  pinState = (mask & value) != 0;                data.Write(pinState);                clock.Write(true);                data.Write(true);                clock.Write(false);            }              latch.Write(true);              latch.Write(false);        }             //This function uses bitwise math to move the pins up        static void lightShiftingPinA(Int32 p, OutputPort data, OutputPort clock, OutputPort latch)        {            Int32 pin = 1;            pin = 1 << p;                      //move 'em out            Shiftout(pin, data, clock, latch);        }        //This function uses that fact that each bit in a byte        //is 2 times greater than the one before it to shift the bits higher        static void lightShiftingPinB(Int32 p, OutputPort data, OutputPort clock, OutputPort latch)        {            Int32 pin = 1;            for(Int32  x = 0; x < p; x++)            {                pin *= 2;            }            //move 'em out            Shiftout(pin, data, clock, latch);        }    }}

Found bug again, Chris

While I powered off and powered on usb........NOT WORKING     

Pressing F5...Ok

Thank again.

FLASHING WAS SUCCESSFUL.                    

P.S. To update your current project using Shield Base: 1. Remove the NetduinoGo.ShieldBase.dll assembly reference from your current project. 2. Add the attached NetduinoGo.ShieldBase.dll assembly as a reference to your project. This update should be fully backwards compatible with your existing code. Chris P.S. NetduinoGo.ShieldBase.dll will also included in the upcoming Netduino 4.2.2 SDK.

Thanks! Work great for 74HC595 for SPI. No Error

@GlenS

It is not necessary to used diode for motors whenever you used 754410 or any other IC chips.

WOOOOOOOOOWwwww!. Your websites is cooled  Actually  I liked font colour, instead of grey colour.

I can see clearly and readability in forum sections.