The Arduino Yún is a microcontroller board based on the ATmega32u4 and the Atheros AR9331. Use this tag for questions specifically regarding the Yún, and not just general Arduino usage.
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Arduino or stm32f4 access point application [on hold]
Do you have an Arduino or STM32F4 application development kit with the access point of the application code project?
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25 views
Got Trouble with ESP8266 and Arduino Yun using REST control
Sorry about my English.
I'm a new bie in program Arduino and interested in ESP8266. I'm trying to use ESP8266 control Arduino Yun using REST API.
Like you know, we using web browser as
...
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1answer
10 views
Arduino YUN real time control
I have a very specific problem, exactly with real time control. For example I try to write an application where I can edit min or max temperature that after reaching it , I will receive SMS with ...
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1answer
26 views
How to get string parts from string? [duplicate]
I have this method:
void getWeatherData() {
String resp = "";
Process p;
p.begin("python2.7");
p.addParameter("/root/weather.py");
p.run();
while (p.available() > 0) {
...
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0answers
7 views
Yun - FileSystem.Open prevents client.println from outputting to web page
The below code is meant to display lines stored in a text file to an arduino based web page (it's a IR gate monitoring solution).
When I visit
I can execute client.println("hello") and I see the ...
1
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0answers
22 views
Sending values to an Arduino Yun across different networks
I have quite a lot of experience with Arduino but have recently been faced with a challenge that has stumped me. The project is to create a robot that can be controlled from a separate network than it ...
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0answers
29 views
Arduino Yun not showing up in Windows or Linux [software issue?]
I've got my Arduino Yun (less than a year old) connected to my computer via a USB cable. The device seems to be on (that is, the lights are all on). However, the Arduino is not showing up in either ...
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12 views
how to turn yun to ad hoc mode?
Can I turn Yun to ad hoc mode?
How to?
As the image above I can see the Ad-Hoc model in that drop down list. But only WEP for its security.
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7 views
yun manage bridge manually
in "Disabling the Bridge Script" of http://cylonjs.com/documentation/platforms/yun/
I did:
Edit the /etc/inittab file to comment out the ttyATH0 line (put a # before it)
...
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1answer
16 views
output of yun is not 3.3
After execute the program of below, the 13 pin output is 4.8v. Why it's not 3.3v?
void setup() {
// put your setup code here, to run once:
pinMode(13, OUTPUT);
}
void loop() {
// put your main ...
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0answers
28 views
How to use console.log message from nodejs server, to control led pin 13?
I want to use Arduino Yun as a client, that connects to my nodejs server, receives a message from nodejs and then change led pin 13 on/off according to the message send.
I have this example of a ...
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1answer
44 views
Find external router IP from Arduino Yun inside router network
I want two Arduino Yuns in different private networks to communicate, i.e., behind two distinct routers of which at least one does not have dynamic DNS, so its external IP may change from time to ...
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0answers
18 views
have to reload Sketch every time I start Yun
I am new to Arduino and IoT. Got my hands on Yun and loaded a simple Sketch to subscribe to a topic. I am receiving messages (have setup a PHP script and broker on server which takes care of the ...
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0answers
13 views
Bridge */arduino/analog/2 returns a blank page
Had some start up difficulties. But updated the YUN and IDE to the latest version.
Using * "/arduino/digital/13/1" works as supposed (turns on the LED) - it's just a bit slow. But I can't see why ...
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0answers
30 views
Yun - replaced uhttpd with lighttpd - luci works but not /data access..?
Ok, utthpd is running on port 80 and lighttpd on port 81...both give access to the luci control panel...all well and good.
However the /data access to the yun data store only works from uhttpd.
...
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0answers
54 views
How to do Serial monitor with Arduino Yun?
I'm trying to read some values from a TCS3200 colorsensor using Arduino Yun. I have some code, which you can see below, that I used when I tested on the Uno.
With the Uno everything worked fine and I ...
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1answer
102 views
Arduino YUN server crashes after few hours!
I have made a simple server using the YUN SERVER and CLIENT Libraries./
The server runs on a loop and waits for a client to connect. After connection it sends the client a simple message and then ...
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2answers
216 views
How to make an arduino wifi repeater?
I am trying to make a wifi repeater. My router's signals don't come to my study and instead of buying a proper wifi repeater I prefer making one.
I want to learn how to make a simple wifi repeater ...
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1answer
129 views
Arduino Yun USB host - reading usb MIDI data and passing forward to another device
I am starting simple, but for some reason I cannot find any examples online and I stuck with my task.
I have a usb midi keyboard, Arduino Yun, and a synthesiser that can accept midi via usb. The ...
0
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1answer
51 views
Which thermometer for home brewing
Hello,
I have an Arduino Yun and I brew beer.
I would like to log the temperature of the beer at all time during the fermentation process (final stage). This means the thermometer would have to ...
0
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1answer
70 views
External access to YUN - request not recognised as HTML
I am trying to access my YUN externally.
My router recognises traffic on Port XXXXX and forwards it to my Arduino Yun.
I have the below code working internally and now trying to adapt this to work ...
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1answer
94 views
Communication between python script and Arduino sketch
I'm trying to transfer data beetween the two scripts. I'm already using the YunMesseger library (https://github.com/plotly/YunMessenger). But it only make the
Arduino -> Python
communication.
I ...
1
vote
1answer
59 views
How can I obtain the .hex of a file
I have an Arduino Yún running Openwrt-Yún 1.5.3 (which is the latest version, as I upgraded yesterday), and I am trying to obtain a .hex (compiled sketch), so that I can upload a sketch directly into ...
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1answer
149 views
Arduino Yun - Problem with bridge and client
I'm using this simple code
#include <Bridge.h>
#include <YunServer.h>
#include <YunClient.h>
YunServer server;
void setup() {
Serial.begin(9600);
Bridge.begin();
...
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0answers
30 views
Issue with removing files progrmatically created under “/www/…”
I am having an issue with removing temporarily files I am creating under the /www directory. I have a subdir, "/www/csv", where csv formatted files are being written based on sensor data. The files ...
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1answer
145 views
Pulse measurement
I am currently doing the project in pulse measurement using arduino yun. I am using pulse sensor is SEN-11574 .
When I verify the code I get this error:
Arduino: 1.5.8 (Linux), Board: "Arduino Yún"
...
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0answers
157 views
How do I read from an SD card on the Yun?
I'm trying to read a small file off the SD card installed in a Yun. Here's the sketch:
#include <FastLED.h>
#include <FileIO.h>
#define WIDTH 32
#define HEIGHT 1
#define NUM_LEDS (WIDTH ...
0
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1answer
1k views
arduino program got error expected //primary-expression before ')' token error: //expected ';' before '}' token E
#include "pulse-sensor-arduino.h"
#include "Arduino.h"
#define PulseSensorbegin
int pulsePin = 0;
int blinkPin = 13;
int fadePin = 5;
int fadeRate = ...
2
votes
1answer
65 views
What are the environmental requirements of an Arduino?
I'd like to use an Arduino Yún in a somewhat outdoor environment (in a metal box on a truck). I think I've seen that the temperature requirements of the Uno are -40 °C to +85 °C, but I can't find ...
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1answer
45 views
Arduino Yun, pass int data true REST
Would it be possible to instead of passing a state via a REST browser:
digital/13/1
to set an int value? For example, if in the sketch if I would name an int: 2, could I set this to 48 via REST?
...
0
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1answer
85 views
Works on Uno but not on Yun
I found some code that works to transmit the required signal to an RX-2B RC receiver, the code works great from my Uno but when I tried to run it from my Yún nothing happens.
The code has definitely ...
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1answer
211 views
Unable to connect to Linux Environment (Linino AR9331 Interface) in Arduino Yun
I was trying to reset my Arduino Yun (WLAN button pressed for more than 30 seconds), but it just kept on blinking for about 10 minutes. Then I finally got impatient and restarted the Yun. After the ...
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1answer
382 views
Arduino Yun RFID-RC522 module not working
I have tried to use Arduino Uno with RFID-RC522 module. It is good work[1] and read rfid cards. But Arduino Yun doesn't work with RFID-RC522 module.
What is diffrent Uno and Yun?
1- ...
2
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1answer
154 views
Yun as a Conventional Wireless Access Point
I want my YUN to act as a server in a client/server architecture so students can control their wifi robots via their desktops. I can plug the YUN directly into an ethernet port on our network and want ...
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1answer
414 views
How to make Arduino communicate with MySQL?
I am trying to send data from my Arduino to my database but it seems that the process is not successfully beginning. Here is my code for Arduino:
#include <Process.h>
#include <Bridge.h>
...
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0answers
178 views
Grove Temperature With Arduino Yun
I try to test Grove - Infrared Temperature Sensor on Ardiuno Yun with the sample code but it dose not work in the console it show that the object temperature is out of range all the time. However, ...
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1answer
601 views
Cannot Communicate With Serial Monitor Ardiuno Yun
I connect Arduino Yun to my Computer with wifi. I was able to get the IP address of my Arduino Yun. However, when I try to print something. It seem to not working at all. The following code is the one ...
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1answer
441 views
How to make MEMS IR Thermal Sensor - D6T-44-L06 work with Arduino?
I am working on project that my team need to detect the presence of the people. At first, we tried with motion sensor but it wasn't the way that we want it to work. We want to detect presence of the ...
0
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0answers
104 views
arduino yun limitations
I plan on working on arduino for the first time, and am returning to working with electronics after a good long while. This might be a fairly ambitious project for just starting off, so I am a little ...
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1answer
375 views
How can I pair a Bluetooth dongle on arduino Yun (openwrt-yun)?
On my Arduino Yun (openwrt-yun, updated to latest version), I have a bluetooth dongle in the usb port; I have installed bluez-libs and bluez-utils (and python-bluez). They show up as version 5.13. ...
1
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1answer
395 views
Arduino Yun - Sensor Data logging to MYSQL on External Server
I want to log data from Sensors (Say Temperature, moisture or humidity) to a MYSQL database (provided by a online hosting company). Is it possible to establish communication between Arduino Yun and ...
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0answers
225 views
Strange Arduino YUN serial port probem
down vote favorite
I'm using Arduino YUN. I need to use the serial port on both sides (linux and arduino). So I disabled the serial port bridge in inittab like this...
inittab=
...
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153 views
Arduino YUN PWM pins
I'm using Arduino YUN PWM pins 9, 10, 11, and 13, and have it set up so all are using the same PWM frequency.
Everything is working fine, but now I NEED TWO MORE PWMs.
I have PWM pins 3, 5, 6 ...
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1answer
99 views
Cant's code against Yun Wireless Section
Just got my Yun today. Successfully connected to my home wireless, installed YunSysUpgrade_v1.5.1,
and divied up my Micro SD card for Linino and Windows file system with YunDiskSpaceExpander,
and ...
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0answers
200 views
Hub RFID Arduino + WIFI
I will start an Arduino project and its main requirement is that some RFID readers (at most 6 readers) be connected and controled by the arduino board.
I do not have a strong background in ...
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130 views
Corrupt image using usb camera in yun
I’m trying to take pictures with a usb webcam, but some of the photos were corrupted with
wrong image segment. If setup with low resolution (640x480), the photos were normal but failed in high ...
-1
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2answers
72 views
Dumping Code in Arduino YUN in windows 8 Machine
I am having Arduino yun , i trying to burn the code in Arduino but after i click on upload , i get the error message:Please Help at first it showing Arduino under the port tab after this message no ...
0
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1answer
1k views
Webserver with Arduino Yun without SD
I'm trying to set up a simple web-server with Arduino Yun without an SD card, i.e via REST, if I understood it right (I'm new to some of these stuff). I want to be able to "get" data (sent by Arduino) ...
1
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2answers
1k views
Arduino Yun - not enough i2c & interrupt pins?
I'm trying to build a small personal weather station. The rain sensor, and wind speed sensor use interrupts. The barometric sensor uses i2c SDA and SCL.
Reading the Arduino Yun manual, it says there ...
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1answer
440 views
Confusing Arduino Leonardo PWM
I'm having problems with using Arduino Leonardo PWM outputs (I'm actually using YUN board).
I need 4 PWM outputs that generally have the same base frequency of around 10 to 20 Hz or so.
I'm using ...
