baxter

Hi Dave, yes, make certain you have the Netduino SDK 4.2.1.0 installed (see my woes), http://forums.netdui...lus-2-problems/ The post #6 by Chris gives the link which I completely missed. The issue of MFDeploy not updating the network configuration is still under study by Chris and has not yet been resolved. I am up and running now, I just can't set the network the way I want. Baxter

Hi Anshul, I use a wireless to ethernet adapter for the Netduino Plus. I have used both the ASUS WL-330gE and the Edimax BR-6258n pocket routers configured as adapters. For some reason the TP-Link TLWR702N does not want to work with the Netduino, but works just fine with an Obi110 VoIP ATA. I Have a fixed IP address for the Netduino and it appears on the network, but takes the MAC of the wireless adapter in the arp cache. The wireless adapter is also in the cache, but its IP address leads to its web configuration setup. I find that there is no difference between the wired and wireless ethernet connection. Baxter

Good book on elementary stuff; sequencing Leds, LM555 timer, transistors, diodes, etc, "Make: electronics: learning by discovery" by Charles Platt Java applet to simulate your circuit (many circuits), http://www.falstad.com/circuit/ Similar, but more limited on iPad, iPhone, iPod Touch http://icircuitapp.com/ Also, do a Google search with site:edu Baxter

"Make: Electronics" by Charles Platt is a good elementary starter book. I has lots of illustrations and explanations. Baxter

I have noticed the lament surrounding the lack of one wire support. It might make sense to take a higher level systems approach and simply offload the required functionality to a peripheral and talk to it via the serial port. In this regard, I am thinking of the PICAXE. The remarkable thing about the PICAXEs (aside from their cheapness) is their high level functionality. The newer parts are very interesting, http://www.picaxe.co...s/picaxem2.pdf. For a list of commands, http://www.picaxe.com/BASIC-Commands For 1-wire commands, see (Advanced I/O Interfacing), owin and owout on this page. Also, look at, http://www.picaxefor...evices-Networks At the bottom of this page there is a very nice 1-wire tutorial (WA55 1-Wire Tutorial RevA.pdf‎, you need to register to download) The minimal parts count to get one working are a couple of resistors for the serial interface, a capacitor and the chip. The drawback is the PICAXE inverted serial so a couple of transistors or a 74HC04 is needed to make the serial port compatible with a Netduino. So my thought is to get an Arduino prototyping shield, install a PICAXE-20X2 and then use my Netduino Plus to manage the sensors connected to the PICAXE. I have used the PICAXE 08M for infrared interfacing and can say that they really make things easy. A good source of USA parts is, www.phanderson.com/picaxe/index.html Baxter

Hi, I have used both of the following: ASUS WL-330gE Wireless Router http://www.amazon.co...cm_cr_pr_sims_t $23.00 after rebate and, Edimax BR-6258n http://www.edimax.co...id=24&pl2_id=89 I personally like the Asus for easy setup as an ethernet adapter. See, http://forums.netdui...h__1#entry16028 The Edimax is is very tiny, slightly larger than a SDHC card and is 150N rather than G like the Asus. Baxter

Here is one from Jens Kühner's book,

Listing 4-16. Converting a Byte Value into a Hexadecimal String
public static string ByteToHex(byte B)
{
const string hex = "0123456789ABCDEF";
int lowNibble = b & 0x0F;
int highNibble = (b & 0xF0) >> 4;
string s = new string(new char[] { hex[highNibble], hex[lowNibble] });
return s;
}

And one in Visual Basic,

Public Function bytesToHexString(ByVal arr() As Byte,
                          Optional ByVal addSpc As Boolean = False) As String
        'by definition the string will have pairs of digits for the byte value
        Dim sb As New System.Text.StringBuilder()
        Dim separator As String = String.Empty
        If (addSpc) Then separator = " "
        For i As Integer = 0 To arr.Length - 1
            sb.Append(arr(i).ToString("x2") & separator)
        Next i
        Return sb.ToString.TrimEnd
    End Function

I just got my Netduino Plus from Amazon a few days ago and have been browsing the Forum for hardware hints. I noticed the WiFi issue relative to shields and adapters so I thought I would pass on my experiences with the ASUS WL-330gE router. This is a tiny travel IEEE802.11g device about the size of a deck of cards. It has one ethernet port and four modes for connecting, 1. Router/Gateway mode 2. Access Point (AP) mode 3. Ethernet Adapter mode 4. Universal Repeater mode I am using it in the ethernet adapter mode (3) and the setup is extremly simple: 1. power up, press the reset button for 15 sec. After reboot connect to your computer via an ethernet cable 2. set the lan port on your computer to a fixed IP address, say 192.168.1.119 3. point your browser to 192.168.1.220 for its web page setup 4. select the adapter tab 5. visible wireless networks will appear, select one 6. click connect, enter your key and the adapter will acquire an IP address 7. disconnect the ethernet cable and plug it into the ethernet port on your device. I have been using this adapter with an Obi110 ATA for VoIP. I have the SimpleWebserver from the Silverlight Developer web site installed on the Netduino+. I simply unpluged the adapter from the Obi and into the Netduino. I then typed (192.168.0.111 is the router assigned address for Netduino), http://192.168.0.111...d.html?SayHello and Netduino answered with Hello, world. You can power the adapter from a USB port (cable included) or from the supplied 5v, 1A wall wart. So all-in-all, this is a pretty simple solution to add wireless capability. Incidentally, Newegg is currently selling this for $15 after rebate with free shipping (http://www.newegg.co...N82E16833320025). Baxter