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71
Nederlands / Re: Ik krijg de arduino ide ex...
Last post by cartoonist - Today at 10:42 pm
Het voorbeeld van jou werkt bij mij, er zit dus geen fout in.
De regel 'My IP address: 192.168.xxx.xxx' wordt door de sketch gegenereerd en zegt dus niets over het functioneren van het shield.
Als je naar het shield kunt pingen dan heeft je router het herkend en het door het shield gevraagde IP adress toegekend. Als dat bij jou niet gebeurt dan zijn er diverse mogelijkheden.
Misschien valt 192,168,100,25 buiten de range die je router toe wil kennen.
Misschien kun je je router vertellen dat hij mac-adres  00-AA-BB-CC-DE-02 altijd IP adres 192.168.00.25 moet geven.

Je kunt ook eens het voorbeeld van de client in je arduino laden en kijken of het shield dan wel werkt.
De voorbeelden van de site http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/ werken wat dat betreft perfect.
Ik ken de Linksys 2500 niet en zelf gebruik ik ook geen DD-WRT firmware, dus daar kan ik weinig over zeggen.  (Mijn router is een Fritzbox).

PDP-11 en Silicon-Graphics uit een grijs verleden zeggen mij wel iets.
Wat betreft Windows heb je groot gelijk, Windows is 'by design' voorzien van gaten en achterdeurtjes zodat sommige "veiligheids"-diensten , indien ze dat willen, je PC volledig over kunnen nemen zodra die aan het grote boze net hangt.

Ik gebruik al jaren Linux en WinXP gezamelijk in een dual-boot. Hoewel, sinds vorig jaar het updaten van WinXP is gestaakt, ik het nog maar zelden gebruik.
72
Generale / Re: Modulo Wi-Fi ESP8266
Last post by icio - Today at 10:40 pm
Sì , è corretto
73
Project Guidance / Re: MiniQuadcopter Build Help
Last post by cr0sh - Today at 10:40 pm
Hi guys I am new to arduino and electronics and I need help, specifically with a quadcopter I would like to build.
That is a very ambitious project - in fact, given your questions, I would have to say that it is likely beyond your current skill level.

Is it possible to build one with a LilyPad?
Possible - perhaps. But it will take much more than just the LilyPad to control a quadcopter of any size (you also need an IMU (Inertial Measurement Unit) of some sort, so that the system can maintain stability...

Could it take enough energy to power the 4 motors, a bluetooth serial adapter so I can use an Android to control it?
You'll also need a fairly small battery (a single cell LiPoly would likely be needed) - plus you need something to use as an ESC for the motors. For motors this small, you would likely end up using small brushed motors, so in theory you could get away with properly sized mosfets and use PWM to control the speed of the motors.

What else do I need (breadboard-(What is a breadboard?) wires-(do they come with Arduino?))?
A breadboard is used for prototyping a circuit. It consists of a small plastic board (or multiples of these) with holes that you can stick components in; these holes are typically connected in a specific and somewhat standard manner (usually 5 per "column") - components can be inserted, and other wires ("breadboard wires" - aka "jumper wires") can complete the connections and the circuit. A google search will give you tons of information about what a breadboard is, how it works, and where you can buy them. Small breadboards are inexpensive. So are the jumper wires.

Breadboards don't come with a standard Arduino - they are usually purchased seperately (though you can find "Arduino Starter Kits" that will usually have an Arduino, a small breadboard, jumper wires, and some components included to allow you to experiment and learn.

Again I am very new to this building and coding if there are any resources you guys can link that would be great.
Again - given your lack of understanding of these basics, as your questions have indicated, tells me that a quadcopter of any size is well beyond your capabilities at this moment. Instead - do yourself justice and get a real Arduino Uno (not a LilyPad, nor a clone or a knockoff - not right now - get the real one so you KNOW it works properly - this is a learning exercise). Get a kit of components and a breadboard with jumper wires, and start playing around with the code for the tutorials, and learning how to use a breadboard and wire it up, and how the code works, and how to change it to get it to do what you want it to do.

Then you'll have a handle on the basics. Alas, you still won't have enough knowledge to build a quadcopter - but by this point, you will know what you need to learn, and/or what questions to ask to be successful.

74
Generale / progetto scolastico
Last post by Androider00 - Today at 10:39 pm
Salve a tutti, per l'esame di terza media vorrei realizzare il modellino di una centrale idroelettrica, con rispettiva condotta forzata(apertura e chiusura meccanica) e turbina, vorrei usare arduino per controllare l'apertura e la chiusura della condotta, e sapere quanta energia ho generato. Non chiedo un progetto già fatto, ma visto che sono nuovo vorrei una mano, se qualcuno potesse darmi qualche spunto sul meccanismo e i componenti da acquistare, mi farebbe un immenso piacere.
75
Hi, I'm relatively new to Arduino, and here are what I was trying to do.

I have this DFRobot GPS/GPRS/GSM Shield V3.0 and mount it to my Arduino Uno R3 as it is Arduino compatible. So when I was trying to drive the GSM Mode via USB Port as it stated , I only got to see the GPS Ready in my coolterm monitor, as it should get to the GSM to be ready.

Here is the code I tried to upload
Code: [Select]

    // Driving the gsm mode via the USB interface
     
    // # Steps:
    // #        1. Turn the S1 switch to the Prog(right side)
    // #        2. Turn the S2 switch to the USB side(left side)
    // #        3. Set the UART select switch to middle one.
    // #        4. Upload the sketch to the Arduino board(Make sure turn off other Serial monitor )
    // #        5. Turn the S1 switch to the comm(left side)       
    // #        6. RST the board
     
    void setup()
     {
       //Init the driver pins for GSM function
        pinMode(3,OUTPUT);
        pinMode(4,OUTPUT);
        pinMode(5,OUTPUT);
       //Output GSM Timing
        digitalWrite(5,HIGH);
        delay(1500);
        digitalWrite(5,LOW);
     }
     void loop()   
     {   
        // Use these commands instead of the hardware switch 'UART select' in order to enable each mode
        // If you want to use both GSM and GPS. enable the required one in your code and disable the other one for each access.
        digitalWrite(3,LOW);//enable GSM TX、RX
        digitalWrite(4,HIGH);//disable GPS TX、RX
     }


Then, since in its wiki page stated that the GSM module may need external power (ranged to 7-12V) to power up as it needs 200mA@7v, when calling, I tried to use 9V/1A external power via the power jack. But then it won't allow me to upload the program to the board.. as it said:
Code: [Select]
avrdude: stk500_getsync(): not in sync: resp=0x43

I tried to unplug the external power and upload the program again then it works, to the point where only GPS module that was ready again..
So, was using the 9V/1A DC Power Adapter Supply to power up the GSM is the one causing this problem? I've checked my USB cable and the COM port to make sure that everything is fine. Is there any suggestion how to make this works?
Is 9V too high or is it even not enough power?

I'm new to Arduino so. any help would really be appreciated, thank you!
76
Arduino Yún / Re: Reading and Converting JPE...
Last post by yagiz23 - Today at 10:38 pm
Because Firebase uses strings, and on the other side I have an Android application taking a base64 string and converting to jpeg from the database.
77
Quote
A problem is that the data coming from serial will not just be 'u' or 'd' but also numbers like '127' or '243' so would I have to change anything in my code on Arduino side to not run into anymore errors?
Are you sending single bytes or not? Do you mean one byte whose value is 127, or three bytes? If three bytes you will need delimiters, otherwise how will you know the difference between:

Code: [Select]

1 27
12 7
127
78
Bar Sport / Re: [OT ITA] Lo spamm bar
Last post by astrobeed - Today at 10:36 pm
Non è certo lui a decidere dove vanno messi i topic, lo spamm bar è stato creato apposta per non intasare la sezione ita con le nostre "perle di saggezza", inoltre i post fatti qui non incrementano il relativo contatore.
Il tizio può storcere il naso quanto gli pare, alla fine gli toccherà prendersi una camomilla e farsene una ragione  :smiley-mr-green:
79
Instead of ==1 or ==2 I did try to do "u" "d" but I got the same error with the comparison, so I thought maybe I have to make it all numbers rather than single characters. Now that I know I should be using ' instead of " I will replace it with 'u' and 'd' instead.
Not at all. You needed 'u' and 'd' not "u" and "d". Same problem.

Yes, you are right. :)
80
Deutsch / Re: Fehler RTClib beim speiche...
Last post by jurs - Today at 10:35 pm
Darauf bekomm ich folgendes was ich nicht versteh warum:
Bitte um Hilfe, hier muss doch eigentlich nichts gewandelt werden oder???

Danke schon mal für den Schubser...
Schau Dir in Deiner Library, die ich nicht kenne und die Du hier nicht näher spezifiziert hast, mal die genaue Deklaration des Typs "DateTime" an!

Und wenn Dir dann immer noch nichts auffällt, was Du falschen machen könntest: Meine Einschätzung ist, dass Du die Groß- und Kleinschreibung nicht nur beim Schreiben von Forums-Messages teilweise verwechselst, sondern halte es für möglich, dass Du ganz eventuell beim Schreiben von Arduino-Sketchen ebenfalls ein Problem mit der korrekten Groß-/Kleinschreibung haben könntest.
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