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 Yun timezone issues
On my arduino yun I have a mysql database which stores datetime in utc and some other variables.
Now, for displaying the various variables on a website, I am in need of converting my datetime stamps ...
0
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0answers
33 views
How to define SoftwareSerial pins on ESP8266
I'am new to arduino yun and ESP. In fact, i have an arduino yun which has a sim808 dfrobot shield on it which uploads GPS data online at a regular time interval.
I want to connect the dfrobot sim808 ...
0
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0answers
46 views
Minimal ATmega328p Ethernet Configuration
What would be minimal schematic for ATMega328P in order to have communication over ethernet? So I'm not asking about attaching existing shields to existing Arduino board, but just for bare minimum of ...
2
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4answers
146 views
Which Arduino is the most suitable for my project?
I've started to prototype something using an Arduino Mega and Yún Shield.
It's simple. It reads an ADC at 50Hz and sends data to a server through a socket. But because of that combination, I need to ...
0
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1answer
45 views
Error: Cannot find module 'serialport'. node.js, Arduino Yun
I carefully followed Andy Sigler's tutorial on how to setup node.js on Arduino Yun. But I'm getting this error "Cannot find module 'serialport'". my node.js file is in mnt/sda1/arduino/node folder. ...
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0answers
20 views
Arduino Yún to Node.js communication
I'm following this tutorial by Tom Igoe Node.js on the Arduino Yún
.
I'm able to get values from my server using Node.js and successfully pass on those values to the Arduino side. But I'm not able to ...
0
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0answers
25 views
Arduino Yun: Faster data logging
I wanna know if there's another way of logging data in Arduino Yun aside from this. I want to log data every 100 msec and when I tested it some of the data were not present on the .txt file. Any ...
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0answers
34 views
Measure water flow using arduino yun but has no pulse reading
I have water flow sensor (paddle wheel type) with arduino yun board. I am trying to get the pulse as the paddle wheel rotates.
The water flow sensos's name is 515 Rotor-X Paddlewheel Flow Sensors.
...
0
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2answers
60 views
bridge messes up serial.print
EDIT
I am using an Genuino Uno & Yun Shield
I am a complete arduino noob
I am creating something where I need a process to execute a command on my yun shield but when I use Bridge.begin(); It ...
1
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2answers
63 views
The easiest and most time efficent way to connect to the internet regardless of the cost
I am working on my graduation Project. I want to use the cayenne (mydevices) platform to control my Arduino. Mainly I want to be able to control a servo Motor through the Cayenne app and I want to use ...
0
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1answer
138 views
How to send Arduino Yún Post Request to localhost?
I've been trying to send data from my Arduino Yun to a local server using XAMPP. My code is shown below. In the serial monitor of the Arduino Yún, it shows connected and prints the data string, but in ...
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2answers
43 views
What is the best type of Arduino board for simple delivery robot? [closed]
I'm new to arduino, and I want to design a Simple Delivery Robot for Data Center, which has an arm to move items, and it follows line while moving.
I have no idea if there is a special arduino board ...
0
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1answer
246 views
Using Arduino GSM with WiFi
I have a project which require multiple data to be sent online from a moving bus. I am using ESP8266F modules to send the data.
I am wondering what arduino modules to buy that will act as an access ...
1
vote
1answer
46 views
Use Arduino Yun Shield as ISP for bootloaded ATMega328-PU
My question is how do I replace the Aarduino Uuno board in this circuit:
...With an Arduino Yun shield? I can setup the hardware - ICSP configuration is easy enough - but how do I go about using the ...
1
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0answers
32 views
uSDaemon in Linino / Arduino Yun Mini hogging the syslog
There is an annoying problem with Linino One / Arduino Yun Mini as the syslog (logread) is full of messages from uSDaemon, complaining about missing files.
ls: /sys/bus/scsi/drivers/sd/*/block/sd?: ...
1
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0answers
54 views
I2C between Yun Shield (Dragino) and UNO R3 problem
I am having problems with I2C communications between my Dragino Yun and an Arduino UNO R3.
I can have the Dragino request data (using Wire.onRequest on UNO) from the UNO and it works great, however, ...
3
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2answers
63 views
How do I program my Arduino Yun Shield when I keep getting this AVRDUDE error message?
The error message is:
avrdude: AVR device initialized and ready to accept instructions
avrdude: Device signature = 0x1e950f
avrdude: Expected signature for ATmega32U4 is 1E 95 87
Double check ...
1
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1answer
73 views
How to read Arduino voltage
I am trying to do voltage measurement using Arduino. I am using a voltage divider circuit to reduce the voltage to less than 5V. I measured the voltage on the 5V pin of Arduino and found out that its ...
1
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1answer
188 views
Arduino Keyboard - print() works but println() does not
I am recently seeing strange behavior in my Arduino Yun.
Just using the microcontroller, I enter the following:
#include <stdlib.h>
#include <string.h> // For string operations.
#include ...
2
votes
1answer
81 views
DHT22 and SI114X.h com
It looks like i cannot combine the Grove Sunlight sensor and the Grove DHT22 Temperature and Humidity sensor. I can't figure out why.
I've the following setup:
Seeeduino CLOUD (Arduino YUN clone)
...
2
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3answers
157 views
Should I buy a retired Arduino?
I am a beginner who would like to buy an Arduino Yún (58 dollars).
It is retired so will I have any problem?
Else I can buy an Arduino Uno and an Arduino Yún Shield. But in this case I don't ...
0
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1answer
33 views
Using Arduino Yún to send data through Ethernet
I'm still new to Arduino Yún and I can't find any tutorials or examples on making the Yún send data through Ethernet, which will then be showed on a web server.
I've seen other tutorials but they use ...
0
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1answer
167 views
Is it possible to connect a camera to an arduino?
I working on a project that requires a small camera to be covering a (insect) nest entrance. The video needs to be transmitted to a computer to be processed. I am interfacing with Java using the RXTX ...
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2answers
34 views
Arduino yun is not creating it's wifi?
I have installed Arduino software into my PC and copied the bin files into the memory card that has to be fixed into Arduino yun.
After switching on the yun board it is not creating any Arduino yun ...
0
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2answers
20 views
Extracting a specific sequence of characters from an array
I have a character array called storebuffer that contains data from a POST submission and its in the format ssid=abcdef&pswd=ghijk. I wanted to extract everything after ssid= into one array called ...
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3answers
130 views
HTTP Requests using Arduino
I use this simple HTTP Post request to post some values on my API from Arduino using Switch. each time I push the switch it send a different values to API.
void switch_led() {
bool SwitchReading = ...
1
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1answer
469 views
Making HTTP post and get using Arduino [closed]
I need to know how I can make http posts and http get from Arduino MKR1000 ( act as a client) to a local server.
I made it on Raspberry pi using python like this:
import requests
import json
...
0
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2answers
2k views
Converting an array of uint8_t to a char array
I'm trying to convert this array uint8_t data[] in the code below to a character array to be printed in the serial monitor. However, when I run this code I see a blank screen. What am I doing wrong?
...
0
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1answer
28 views
Get value from a website using Yún and a RPi
I have a project that requires opening a door remotely. I'm using an arduino Yún and a raspberry pi.
I have a switch connected to the RPI and i'm sending it's value to a web server. How can I get the ...
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1answer
107 views
wifi failled connection with yun and after upgrading openwrt
I recently bought an arduino yun. When trying to connect to the router following the procedure in https://www.arduino.cc/en/Guide/ArduinoYun#toc14. After the Configure & Restart, the Arduino ...
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1answer
24 views
Adruino Yun's Linux environment not working
I was recently given an Arduino Yun board from my university. I am able to upload sketch to the board, and it seems to function properly. However, I am unable to see the Linux booting up. When I want ...
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0answers
103 views
RFID Code (and setup) works on an UNO but not on the Yun
We're using two RDM6300 RFID readers for this, and the code works when plugged into an UNO, but not when connected to the Yun. We have one of the rfids plugged into the rx pin (0 on the digital side) ...
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0answers
35 views
How can I stream incoming g-code from the WiFi (Yun shield) to the RX port 0 on the UNO board?
I am trying to build a wireless CNC machine. I have stacked a Dragino Yun shield on top of an UNO and then stacked a CNC shield on top of that. Apparently, all that is required now, after uploading ...
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1answer
273 views
Arduino Yun Python ImportError: No Module named mime.multipart
So, I have an Arduino Yun, and I'm trying to send an email with python. I have this code that I got from https://github.com/amicojeko/YouCantTouchThis
But when I try to call the file with $python ...
0
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2answers
187 views
Are there any advantages to Wifi shields as opposed to a Yun?
I have an Arduino Uno and I have a remote sensing project I need Wifi connectivity for. After research I've found that I have 2 options:
Buy a WiFi shield for my existing Uno
Buy an Arduino Yun with ...
0
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1answer
92 views
Setting Up a JavaEE app on a Arduino Yun Board
I'm looking for some reference material to start on a project I'd like to do.
I have a Open House at my school. My group project has been to create a little timesheet app using JavaEE. I just started ...
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0answers
101 views
Arduino Yun OpenWrt MySQL Issue
I am using OpenWrt in Arduino Yun.
I want to save some sensors data into MySQL Server which is installed in OpenWrt localhost.
But it gives an error when I try to login MySQL after reboot the system.
...
0
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3answers
397 views
Send commands to Arduino from the WEB
I need to send Arduino some instructions from the web. Basically I would have a web app with a few buttons, and when I press them they send an instruction to Arduino to move for example a motor or ...
1
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1answer
84 views
What Arduino board with WiFi should I choose
I want to implement an Arduino module with some sensors and send the info through WiFi to a server. I'm looking for the best board or component combination to make this. What is the best board or ...
2
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0answers
44 views
Yún not detecting SD card
My Arduino Yún is not detecting my previously working SD card. The metal contacts are closed. There is no dmesg output after plugging in the SD. It does not detect a different SD.
Any ideas for what'...
0
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1answer
192 views
Arduino Yun & nRF24L01+ -> Linino crashing
I'm trying to hook up a nRF24L01+ wireless transmitter to an Arduino Yun Mini on SPI, but I'm having a hard time. After a few minutes Linino crashes and becomes completetly inaccessible - until I ...
0
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1answer
132 views
How to copy files from Yun to local computer?
I would like to copy a file that is in the root folder of my Yun, to my Macbook. They are connected with an ethernet cable and I am logged into the Yun through ssh.
The Yun's IP is 192.168.2.16 while ...
3
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1answer
125 views
Power Supply Problem with Arduino Yún: Using a log USB cable
I want to use an Arduino Yún as a kind of outdoor weather station. I want to supply the power for the Yún with a 5V USB-Charger. Using a normal USB cable everything works fine. But as the weather ...
3
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2answers
146 views
Is it possible to directly set the registers that control the ADC clock on the Arduino?
Is it possible to directly set the registers that control the ADC in an Arduino Yun (micro-controller side is essentially a Arduino Leonardo) from a sketch or is there a specific file somewhere you ...
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2answers
247 views
Arduino Yún shield password reset
I'm using a Yún shield from Dragino with an Arduino Uno, but the default wifi password for the shield (which should be "dragino") isn't working.
I tried the wifi reset (holding down the reset button ...
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1answer
63 views
arduino beginner documentation help
I plan to buy these 2 products to begin to play with arduino to learn.
Board with LCD touch
Yun board expansion
I have a mega 2560 which i bought with a starter kit and i love to play with. I have ...
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1answer
102 views
Does WiFiClient work on a Yún to send data over a certain IP and port to be received by a Python socket?
I haven't been able to get the example code from the page WiFi:Client:connect() to work on my Arduino Yún. Is this not how I'm supposed to send data over WiFi to be read by something like a socket?
...
4
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1answer
166 views
Arduino Christmas light project with dimmer
I have an existing project using an Arduino Yun that controls Christmas lights with relays to turn them on/off. There are currently 13 separate rows of lights on the (60 foot) tree, each plugged into ...
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0answers
34 views
How to shake hands (Atheros-ATmega comms)
How does one assert, from the Linux user land (root-er land?) on the Atheros AR9331, the 32u4's arduino-pin 7 for communication handshake?
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1answer
28 views
Files to YUN flash?
Is there a directory where, if I put files there, they will be on the Yun's internal flash instead of the SD card? ex. No SD card error handler file.
I'm using openssh-sftp-server for a sftp server, ...
