April 4th it is!! Can't wait to see whats gonna come out of Secret Lab's kitchen

I hope it is th4 date 4/4. I really wanna know what thats about lol. How secretive of Secret Labs

For some reason I cant edit. I forgot to mention that in order to save space I will keep the box with some sort of data logger thing out of the BoCS, but if anyone wishes to get that, post here so I can put it back into circulation. Its kinda big and takes up too much room.

Well this is silly, edit system is acting up or chrome is failing. anyways, ignore the above statement, I managed to fit that thing in there. I will ship the box asap. Dan can you get me that address?

Oh boy, I may not want to open such a perfectly packaged box!
Look forward to getting it!

It's alright, you have permission to open the box if you stop folding proteins

Can haz box! Small note before we get into the box, yeah I've been absent from the community for a bit, I'll be back to my regular presence when school lets go of my neck. I took out the big fancy stepper and the AMD CPU, which luckily enough fit in some mobo i had lying around. An interesting project will come from that, hopefully you shall see it soon. Picture of what I took - http://dl.dropbox.co...45/DSCN0322.JPG Now to the goodies you will find! I took a picture of the contents all laid out, find the fairly large image here: http://dl.dropbox.co...45/DSCN0341.JPG My contributions are (enclosed in red in the picture): Ziplock bags(All salvaged from a CRT monitor pcb.): caps resistors diodes and one with mosfets, inductors and some dip chip. Salvaged from an old printer are three pcbs, one of which is a funky big button pad, and three motors (2 steppers and one dc) Now to pack this all up as best as possible, OCD engage...

Hi guys,

I've played a little with the code and found that we can't use text functions together with graphics - the text goes directly to the LCD than the graphic gets into the buffer first and than whole buffer transferred to display.
So I added functions DrawString and DrawChar that draw string into buffer first, so it can be combined with graphics and shown by calling Lcd.Refresh() function:

public void DrawString(int x, int line, string str, bool mode)
        {
            foreach (char c in str)
            {
                DrawCharacter(x, line, c,mode);

                x += 5; // 6 pixels wide

                if (x + 5 >= 84)
                {
                    x = 0;    // ran out of this line
                    line++;
                }

                if (line >= 48 / 8)
                {
                    return;        // ran out of space :(
                }
            }
        }

        protected void DrawCharacter(int x, int line, char c, bool mode)
        {
            for (int i = 0; i < 5; i++)
            {
                if (mode)
                    ByteMap[x + (line * 84)+ i] |= NokiaCharacters.ASCII[c - 0x20][i];
                else
                    ByteMap[x + (line * 84) + i] |=(byte) ~NokiaCharacters.ASCII[c - 0x20][i];
                //x++;
            }
        }

Regards,
Eugene

Nice Eugene! You're welcome to re-post the code with that added in.

Still having BSOD when unplugging the netduino plus when its hanging on deployment.

Guys,
I could use some help. We've built a netduino project similar to this one. But it doesn't work. I took this sample code and tried it too, doesn't work.

I grabbed a couple of AA batteries and put them in series to generate 3volts, then touched the contacts to my led to see if it's broken, and it works, but only if I reverse the polarity from what's in the diagram. What am i doing wrong?

I was connecting the negative side of the battery to longest lead (common) of the RGB LED. That won't light it up, but it will if I reverse the connection and put the positive to the common.

Have I done something wrong?
Rob

I think you've got a common anode LED. There is nothing you're doing wrong, just put the common lead into the 3V# instead of GND. this will also make it so SetDutyCycle(0) will turn them on, and SetDutyCycle(100) will turn them off. so its reversed.

Happy Birthday to the Netduino!! Whats the birth date of his two younger brothers? (Mini and Plus)

Right now I am working on half of a redo in the key system. This feature will let you choose the key modifiers and let them stick. This is how it works as of now: Keyboard.SetModifier(Keyboard.Modifiers.Shift, false); Keyboard.SendString("test"); Will type "Test" Keyboard.SetModifier(Keyboard.Modifiers.Shift, true); Keyboard.SendString("test"); Will type "TEST" So the bool determines if the original modifier of a all of the character's is ignored (true), or just the first (false) So if you want to do a 'Find' you would do: Keyboard.SetModifier(Keyboard.Modifiers.Ctrl, false); // the false means that once the ctrl is pressed with the first key it will be released. Keyboard.SendString("f"); // or Keyboard.SendChar('f'); upper case wouldnt affect it either. and you can do interesting things like Keyboard.SetModifier(Keyboard.Modifiers.Ctrl, false); Keyboard.SendString("fThis is the string i want to find"); // find dialog will show up and "This is the string i want to find" will be typed. Thats all kinda confusing, but you'll see soon. Shift works as explained. Now i have to find the ctrl modifier to test that out

Now you can just press a key (it will be 'held down'). Since keyboards do repeat, the key will be repeated as a regular keyboard does. Things like shift can be 'held down' using the method described above. holding down of keys like the arrow keys might be useful for games.

Here is a quick video of it in action.



This will make the netduino a USB HID, so the netduino will simulate a keyboard in this case.
To get your netduino ready for this:
1 Install firmware 4.1.1 http://forums.netdui...re-v411-beta-1/
2. Transfer to Serial deployment http://forums.netdui...b-and-com1com2/
3. Create a project and put the class in it, add the test code to your program's main method
4. Hook up a usb to serial like this: http://www.sparkfun.com/products/9873 to your netduino's com1 or 2, which ever you chose while setting serial deployment
5. Change deployment in VS to Serial, select your com port
6. Power your netduino with a 9V battery or whatever, except usb. Deploy.
7. You need the code to run and set up the usb stream first, then connect your usb cable.

Class:  Keyboard.cs   16.63KB   241 downloads

Add a reference to:
Microsoft.SPOT.Hardware.Usb

Sample use. As in the video.

            string setupResult = Keyboard.SetUp();

            Debug.Print(setupResult);

            if (setupResult != "Success")
                return;

            while (true)
            {
                led.Write(true);
                if (button.Read())
                    Keyboard.SendString("/*\n" +
         "* Supported Characters (with this method):\n" +
         "* abcdefghijklmnopqrstuvwxyz\n" +
         "* ABCDEFGHIJKLMNOPQRSTUVWXYZ\n" +
         "* 0123456789\n" +
         "* enter escape backspace deletethis\b\b\b\b\b\b\b\b\b\b \ttab   space\n" +
         "* - = [ { ] } \\ | , > . < / ? ! @ # $ % ^ & * ( )\n" +
         "*/");
                led.Write(false);
                Thread.Sleep(2000);
            }

Projects using the netduino as a keyboard coming sometime soon. I want to make a mouse class next.

I found this:
/* Custom USB HID Communication Device
* Copyright © Secret Labs LLC. All Rights Reserved.
*
*
* Licensed under the Apache 2.0 open source license
*/
in the original code from the USB HID example. I added that I expanded it. I am not big on licenses, but I think I must add it to my code as well. License info here: http://www.apache.or...ICENSE-2.0.html

I miss an episode...
Questions:
This project would let the Netduino app to read an USB-keyboard?
Was made with the official firmware? If not, could you provide the firmware for the Plus as well?
Thank you!

Sorry about that not everyone is on the same page, my bad. I will update the details above...

EDIT:
I listed a few steps up there. I hope it helps. and just to make it clear, the netduino wont become a host (read keyboard data) it will become a client (be a keyboard).

Omar, would it also be possible to add something for combined combinations?

Yeah I am going to work on that. I just wanted to open it up now for people to play with and report bugs to me I don't think that the SendKey syntax will be implemented though, its a bit complex and would take a lot of parsing. I want to try and find an easier way to do it.

Hi,

Thanks for this!

I'm not sure where the official repository for keyboard.cs is - but I added single and double quote support:

case 34:        // "
    cb = 52;
    mod = 0x02;
    break;
case 39:        // '
    cb = 52;
    break;

This is a great reference if there are any keys you need to add for your project: http://www.quadibloc.com/comp/scan.htm

Thanks Again!
Dan

Thanks for the contribution! I'll add it to the code when i get some time.

My thoughts on the matte solder mask con be refined to: awesome! I like the fact that it doesn't show fingerprints! It also doesn't get oily from your hands, unless you touch it after eating or dipping your hands in oil . It looks very nice and smooth. Essentially, its very shiny, but figuratively.

Hi
What is the max value for "SetDutyCycle(x)"

// Nizze

its 100... i think if you put in anything higher it just sets it to 100 because it wont throw an exception.

Hello, as title, i need a 2,5" - 3,5" netduino compatible touch screen (with drivers) that act as input interface.
For example, at this moment on my netduino i've connected 16 realys and 2 74hc595 shift registers. All work well, i can act all i want relays (thanks to Stefan 74hc595 drivers) but now i have only output (yes and only one onboard input button), so i need input ... and if is possible this inputs must be virtual buttons (designed on touch screen) that acts my ralays. Exists this touch screen i need? where i can find and buy it? Thank you

The company 4D Systems has a few serial touch screens. http://www.4dsystems...au/products.php . I've used this one: http://www.4dsystems...prod.php?id=114 and I'm happy with it. It can be used with serial commands or programmed with 4D's 4dgl language. You can read about it, and see if it works for you. If you need help with it, I'd be glad to help.

i don't understand, do not exists simple netduino compatible touch screen (without serial communications). I know that most of arduino shield is compatible with netduino. So arduino users don't have support of touch screen?

I don't know of any touch screen shields out there right now. the screen I linked is not too hard to use, if you're looking or an extremely easy solution I don't think you'll find it at this point. You can try this website http://shieldlist.org/ to find a shield that might work with the netduino. I havent tested any touch screen shields myself though

Folks, you know tell me where to buy netduino plus in Brazil???

Thanks in advance!

http://www.netduino....uy/?pn=netduino there you can see the official sellers. I'm not sure which one would be best for you (as far as shipping costs go). Hope you find one that suits you

Ok i can buy this model as you suggest: µLCD-32PT(GFX). But really i don't understand how i can use it for my purpose.
If you read all my first post, you'll see what i need. Substantially i need virtual buttons to touch on the screen and activate specific ports of shift registers. Obviously i need other function like create list of string to memorize in a sd card (so the touch screen must show the list with scrollbars) and other..
So i ask you: with simple netduino (not netduino plus) i can connect the µLCD-32PT(GFX) and operate? I think that i need to communicate with serial port because activating shift register.. right? This serial port need another shield? because with normal netduino i don't see a serial port.
If you can help me to understand, i'm grateful

You can use that screen with a regular netduino. You can use it by connecting it to one of the two serial ports on the netduino. If you post an image of what you'd like the graphical interface (whats on the screen) to look like, I'd be glad to help you with programming the screen. Its best to program the screen using their language, and then just send a number to the netduino which corresponds with the button pressed or whatnot.

So here is a bit of explanation of how it will work.

[screen side]
1 Draw screen graphics
2 Wait for a touch on the screen
3 Identify which button was pressed based on location of touch
4 Send data to the netduino like the number 1 for button 1 / relay 1.
[netduino side]
5 Netduino will read the number
6 Do whatever is necessary like shiftclass.TurnOn(number);

Hi OZ,

It seems like the link is broken above. Any chance you still have the 3D model kicking around?

http://sketchup.goog...c35&prevstart=0
So that's where I left it

hi folks,

i´m a beginner with programming and wan´t to know how i can read or convert input signals??
i conected a poti with the analog input, i will that the led from D0 by low voltage pegel shine and the led from D1 by high voltage pegel or so.

Please cam someone post some ideas for a code for c#.

Thanks a lot

Markus

This might help: http://wiki.netduino...ntiometers.ashx

When applying steady voltage in the range of 3.3V to the analog pin I get no steady readings in the digital converted value.

The Netduino is a revB board and the AREF is also coubled to the 3.3V internal supply on the board.

The code attached

        private int read_a(AnalogInput readport)
        {
            int avg = 10;
            int[] a_data = new int[avg];
            int average = 0;
            string readresult = "";
            for (int i = 0; i < avg; i++)
            {
                a_data[i] = readport.Read();
                average += a_data[i]/avg;
                readresult += a_data[i].ToString() + " " ;
            }
            
            Debug.Print(readresult);
            return average;
        }

I think this is wrong because of these values:

476 473 474 474 477 473 476 475 475 476
bat1_a 470

when it should return 474.9 or 475 if you prefer.

So try this:

        private int read_a(AnalogInput readport)
        {
            int nums = 10;
            int total = 0;
            double average;
            string readresult = "";

            for (int i = 0; i < nums; i++)
            {
                int temp = readport.Read();
                total += temp;
                readresult += temp + " " ;
            }

            average = temp / nums;

            Debug.Print(readresult);

            return (int)average;
        }

if you want to round up then do: return (int)(average + 0.5);

Let me know if those averages are accurate then.
Sorry I had to leave you this morning, I had to get to the airport.