Recent Posts

Pages: 1 [2] 3 4 ... 10
Arduino Yún / Yun Wifi not working
Last post by kyle7125 - Today at 06:40 pm
I just received a brand new Yun, fresh out of the box.  I plugged it into my PC over USB and waited to see with AP pop up so that I could configure it, but the SSID never showed up.  I've tried resetting the WLAN multiple times, and I've also tried plugging in directly to the PC via Ethernet, but I still can't connect.  I am able to upload sketches and read back over the Serial Monitor.

Here's my output from the WiFiStatus check:
Code: [Select]
Starting bridge...

Current WiFi configuration

Current WiFi configuration

Current WiFi configuration

And here's an output from YunSerialTerminal when I try to find my IP address via ifconfig:

Code: [Select]
root@linino:/# ifconfig
eth1      Link encap:Ethernet  HWaddr B4:21:8A:F8:42:4A  
          RX packets:251 errors:0 dropped:9 overruns:0 frame:0
          TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:28387 (27.7 KiB)  TX bytes:10611 (10.3 KiB)

lo        Link encap:Local Loopback  
          inet addr:  Mask:
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:530 errors:0 dropped:0 overruns:0 frame:0
          TX packets:530 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:36000 (35.1 KiB)  TX bytes:36000 (35.1 KiB)


My understanding is that there should be a wlan0 section to this output, but it does not appear.
Any ideas what's going on here?  This didn't happen with any of my other Yun's (I've played with 3 total).

I've also attached the U-boot output in case that's helpful
Deutsch / Re: Arduino MEGA, allgemeine F...
Last post by combie - Today at 06:39 pm
Warum macht es Unterschied wo eine Funktion steht?
Die automatische Funktionsprototypengenerierung versagt manchmal.
Dann ist es angesagt diese händisch zu erstellen.
Alle C/C++ Programmierer müssen diese normalerweise händisch erstellen.

Wieso meckert die IDE so früh ?
Sie warnt dich, dass der Speicher für den Returnstack und den Heap knapp sein könnte.
Ob er wirklich knapp ist, kann nur der Programmierer beurteilen.

Displays / Re: 3 Digit 7 Segment problem
Last post by odometer - Today at 06:38 pm
Please post your code.
Programming Questions / ISR(TWI_vect) error compiling
Last post by Plecto - Today at 06:38 pm
Simply trying to have the TWI interface cause interrupts, but my compiles is not too happy about me using ISR(TWI_vect). My knowledge is far too limited to understand why that is :(

Error message:

Arduino: 1.6.12 (Windows 10), Board: "Arduino/Genuino Uno"
libraries\Wire\utility\twi.c.o (symbol from plugin): In function `twi_readFrom':
(.text+0x0): multiple definition of `__vector_24'
sketch\test5.ino.cpp.o (symbol from plugin):(.text+0x0): first defined here
collect2.exe: error: ld returned 1 exit status
exit status 1
Error compiling for board Arduino/Genuino Uno.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
MKR1000 / Re: MKR1000 blink with externa...
Last post by RandallCole - Today at 06:38 pm
I tested this configuration and code and it work.  This is going to help me with my post.


Hello , sandeepmistry, this is my wiring:

And the sketch that I'm using which I tested with a Yun Board is the following (I have tried different pin combinations already):

const int buttonPin = 7;     // the number of the pushbutton pin
const int ledPin =  6;      // the number of the LED pin

// variables will change:
int buttonState = 0;         // variable for reading the pushbutton status

void setup() {
 // initialize the LED pin as an output:
 pinMode(ledPin, OUTPUT);
 // initialize the pushbutton pin as an input:
 pinMode(buttonPin, INPUT);

void loop() {
 // read the state of the pushbutton value:
 buttonState = digitalRead(buttonPin);

 // check if the pushbutton is pressed.
 // if it is, the buttonState is HIGH:
 if (buttonState == HIGH) {
   // turn LED on:
   digitalWrite(ledPin, HIGH);
 } else {
   // turn LED off:
   digitalWrite(ledPin, LOW);
Proyectos / Re: Dudas con el monitor serie
Last post by Lucario448 - Today at 06:37 pm
Ya te dije que la comunicación serial es bidireccional. El monitor serie es capaz de enviar texto mientras recibe otro.

Que el Arduino pueda lidiar con ambas cosas a la vez, eso depende del programa.
I've tried another one of these boards. The whole thing seems interesting.

When I select "upload using programmer" I get the same response from avrdude - the one about wrong device signature. But the sketch seems to be uploaded correctly anyways. I don't know how this is possible or what is going on anymore.
Hardware / Re: Simulare pressione tasto
Last post by elpapais - Today at 06:35 pm

bhe se il diodo è invertito allora si ma cosi com'e' il diodo mi sa che raspi è in uscita e ardu è in ingresso...
dubito che abbiano cambiato i simboli del diodo negli ultimi giorni....
quel diodo impedisce al segnale di arduino di entrare sul raspy...

se sbaglio spiegatemi il perchè....
Project Guidance / Re: Best way to make the rece...
Last post by 123Splat - Today at 06:35 pm
Predetermined path through the store for the cart/trolley/bot to follow, marked with I.R. paint. bot uses I.R. illumination and sensors to follow path ( or substitute magnetic rubber strip and Hall Effect sensors, but there goes your budget)(see line following robot projects).  use ultra-sonic distance sensors for obstacle avoidance, and distance from shopper detection ( stop when obstacle within set range, like 2-3 meters). and near field RFID to identify shopper within range.

Gonna cost ya a little more than $50, even before you consider motor drive and power supply to support shopping cart sized max load......
Displays / Re: MCUFRIEND_kbv Library for ...
Last post by safari1 - Today at 06:35 pm
David, thank you very much for your patience!
Without your support we would be left alone with an "unknown manufacturer".

Please don't forget to correct LCD_ID_readreg (still reports ID=0 for ST7796).
Pages: 1 [2] 3 4 ... 10

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131