Tagged Questions

Arduino is an open-source electronics prototyping platform.

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0
votes
1answer
17 views

Arduino - create dynamic rules

I want to create a program for arduino in order to be able to add and remove rules controlling some pins, whenever i want and not hardcode them. For example a rule like this: if pin1=HIGH and ...
1
vote
1answer
14 views

Arduino Look-alikes and Ubuntu

I had a general question about coding with Arduino Uno-R3 on Ubuntu. I'm thinking of getting one ebay. I do see a lot of similar ones (not arduino branded) but at lower price. I intend to use it by ...
0
votes
0answers
14 views

JArduino - Always PIN 13 is set to High

I have a peculiar problem in using JArduino to blink an LED. Below is the detailed description. I downloaded the JArduino-0.1.7 distribution, copied the JArduino folder (located in the distribution ...
1
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0answers
8 views

How to output a video through HDMI raspberrypi as arduino shield [closed]

I know that is possible to use raspberry pi as a HDMI shield for arduino, like in this post http://codeandlife.com/2012/12/27/raspberry-pi-as-arduino-hdmi-shield/ But I want to know how to output a ...
1
vote
1answer
16 views

how to recheck file in Arduino SD card

I am trying to create a list of files on my SD card this is easy enough to do once but the moment I run the program more than once the list become either shortened or the program say there is no files ...
1
vote
2answers
26 views

Extracting decimal part of a float accurately

Note: I am coding the following in the Arduino variant of C++. From a given float (always with four decimal digits), I wish to extract just the decimal part ("mantissa") as an integer. So I ...
0
votes
1answer
25 views

Arduino SD card select delete

Morning all I have been looking around for a long time and have found no answer to my question. I am trying to make a sort of menu to allow the user to delete a file or multiple files from an SD ...
-3
votes
0answers
16 views

Additional parameters for Serial.print() in Arduino

I am looking through some code, and the official page for Serial.print() does not seem to list this functionality: Serial.print(someVar, 4); Is the 4 an opcode for a print formatter, or does it ...
0
votes
1answer
42 views

How to use C# to send data to Arduino board

I have an Arduino Uno board, I succeeded to sent it a .txt file contents using Java with Processing 2 software, I want to know how to do this using C#.
0
votes
3answers
46 views

Serial Communication one to one

If this is a stupid question, please don't mind me. But I spent some time trying to find the answer but I couldn't get anything solid. Maybe this is a hardware question, but I figured I'd try here ...
1
vote
0answers
25 views

can´t upload code to arduino UNO using stino and ubuntu 12.04

i have installed stino on sublime-text-2 succesfully, but when i try to upload my code to arduino UNO, the output is the following: Uploading ...
0
votes
1answer
17 views

Arduino with GTK/CAIRO

I'm trying to create a GUI (User station kind) and use functions defined in the arductoper arduino library like the AP_Motors and the sensor data. Right now, the GUI is stand-alone and compiles with ...
1
vote
1answer
21 views

sending information to arduino serial port in python

I'm sending data from an Atom feed from a python script to my Arduino board. I can succesfully communicate with the board the first time, but afterwards, I get a serial exception error from the ...
0
votes
1answer
33 views

6 Ultrasonic Sensors rotating a Servo Motor

For our moving-mirror project we use 6 Ultrasonic Sensors to rotate a servo motor where the Mirror is resting on. Our concept is if 1 sensor detects someone/something infront of them the mirror ...
-1
votes
1answer
48 views

gcc avr error: expected ‘)’ before ‘>=’ token

in arduino i'm a beginner. Im trying to upload code with Arduino UNO to ATtiny 2313 and i'got an error: In file included from /usr/lib/gcc/avr/4.7.2/../../../avr/include/util/delay.h:44:0, ...
1
vote
1answer
52 views

Arduino I2C DS1621 commands

I have a question about the DS1621 (arduino): What commands and parameters must be sent to the pin 3 (TOut) so that this shows a temperature greater than 25 Celsius on HIGH? I want to use the Wire ...
0
votes
1answer
39 views

Can arduino constantly check values while running a different function?

I have an arduino R3 hooked up to a moisture sensor and a humidity/temperature sensor. Is there a way to use millis(); instead of using delay(); in a way that the rest of the program will run ...
1
vote
1answer
37 views

python script that simultaneously listens/responds to http requests, serial port, and time-based events?

Short version of my question: How do I design a single Python script that can listen and respond to inputs received via HTTP or a serial port, and also initiate communications via these channels on ...
1
vote
1answer
18 views

How can I write an Arduino sketch to interpret boblight data on Windows?

I've spent days searching for information on the internet about this with no joy :( Really hoping someone can help. I'm trying to create an ambilight clone using boblight, an Arduino Uno and an LED ...
0
votes
1answer
22 views

Redpark Serial Cable not receiving data on iPad 4

I'm currently trying to get an iPad 4 to talk to an Arbotix RoboController (Arduino-like controller with lots of pins). I'm using iPad 4 with a Lightning to 30-pin Adapter connected to a RedPark ...
0
votes
1answer
46 views

How to use #define to assign pins in Arduino?

i am trying to use #define to create a constant and define a pin, check this code #define PIN_MICROPHONE 13; void loop() { analogRead(PIN_MICROPHONE); } But when trying to compile, says this ...
0
votes
0answers
16 views

Xbee strangely sending random serial values

I've managed to connect to Xbees. One is attached to the CPU via XbeeExplorer and another one is a ElSequencer (An lilypad arduino board). The connection works great and I can send wireless signals ...
3
votes
1answer
31 views

C/Arduino Switch Case

I'm writing a code on Arduino (very similar to C, which I don't know, or very little), and I have a little issue concerning the Switch/Case statement, I need my Arduino to do this or that depending ...
0
votes
0answers
32 views

Arduino Wifi Shield is not communicating

My project is an Arduino RC car controlled with Android. For that I bought the Arduino Uno R3 and the Arduino WiFi shield. The problem is that the wifiShield not listening to the client and can't ...
0
votes
3answers
58 views

Can sombody simplify this equation for me?

I know I can use Mathematica, but sadly I dont have one. I just want to find the A,B,C,D form matrix | X1^3 x1^2 X1 1 | |A| |y0| | X2^3 x2^2 X2 1 | |B| |y1| | X3^3 x3^2 X3 1 | X |C| = |y2| | ...
-1
votes
0answers
19 views

Do i necessarily need to buffer the data coming through inputStream of bluetoothsocket ? If so how ? What's the error in the code given?

I have been trying to make an app to connect android phone to a bluetooth module which is connected to an Arduino Uno. The app should get the data from the bluetooth. I have used thread for the ...
0
votes
1answer
52 views

Serial port communication Arduino, C++

Ok, I got a problem. I'm programming something that uses the microsoft flight simulator X SDK and Arduino. The application is supposed to send data over Serial port to the arduino board, and I am ...
0
votes
0answers
21 views

Firmata servo control

I am stuck on my project at the final part which is controlling a servo by reading xml feed and depending on the values it should turn several degrees. I am using a weather xml feed by yahoo which ...
0
votes
0answers
20 views

Problems with multiple SPI devices (SD Card and Mag card Reader) using Arduino

I am currently trying to create a device that works in this way. A magnetic card is swiped, the ID of the person is recorded (School ID #) and then the ID and the time of the swipe is recorded on a ...
1
vote
1answer
30 views

Writing to external EEPROM with SPI on Arduino

I'm trying to write to a separate device's EEPROM to configure the behavior is the device, and am controlling the device with an Arduino Uno. As according to this webpage, my SCK is connected to pin ...
1
vote
2answers
111 views

Arduino potentiometer time control

I want to set a time interval by a potentiometer. I want to select it from 1 to 6 seconds. How can I do this? I have this so far. If I use the potentiometer the light goes from light to dark. (I'm ...
0
votes
2answers
68 views

Undetected USB accessory with Arduino Due connected to Android MiniPad (MPgio)

I have problem working on an Android accessory job with Arduino Due which is uploaded Blink.ino (other samples too). The problem is that I couldn't detect any USB accessory (or List) from UsbManager ...
0
votes
0answers
20 views

Do apps running on iDroid have acess to both the headphone out and the microphone in?

I am building a app for my iPhone 3G running iDroid and it is communicating with an Arduino via the headphone jack. Will any commands on a normal Android phone for sound work on a iDroid iPhone? What ...
0
votes
1answer
33 views

node serialport not displaying serialport data in raspberryPI

I am trying to read the serialport data coming from Arduino to Raspberry PI but it doesn't display anything. I have verified that the data is arriving in the serialport. The same script works fine in ...
0
votes
1answer
46 views

Generate FFT and decode on Arduino

I really fail at FFT and now I'm in need to communicate from the headphone jack of my Android to the Arduino there's currently a library for Arduino (talks about it in the blog post Real-time spectrum ...
0
votes
2answers
53 views

JavaScript Ajax request not working in Firefox and Google Chrome, but it is okay in Safari

I'm using some JavaScript to send an Ajax request to an Arduino webserver and change the HTML on a webpage. In Safari this has been working great, but when I try to load it in Firefox and Google ...
1
vote
2answers
56 views

Arduino UNO - Controling LED strip with presure sensor & pulse

I am new to forums and hope someone can help me. I have two separate sketches both working fine, the pressure sensor and the pulse sensor; alone these are fine but when I try to combine both they ...
0
votes
1answer
95 views

Arduino freezes when trying to use Xively(Cosm) AND Pusher

I am building an arduino-powered Air Conditioner Remote. I have the actual IR remote trigger working with pusher.com, but now want to add xively feeds for the temperature in the room and the current ...
0
votes
1answer
41 views

Arduino TFT and UTFT library

I try to test a 3.2"inch TFT LCD module (with an SSD1289 controller, and ADS7843 compatible touch panel controller) with the library UTFT. This library supports TFT (listed in PDF) and Arduino ...
0
votes
1answer
32 views

Arduino Cloud Light — Boolean thunderstorm

I'm using an arduino to make a Cloud Light with an IR remote. I am trying to make one of the buttons simulate a thunder storm where the white LED's will randomly flash WITHIN the boolean statement ...
0
votes
0answers
40 views

How can I get Gmail, Twitter, WatsApp notifications make it string

I need to get my notifications and convert it into a String object to send all of them via Bluetooth to my Arduino. How can I do that? If I can't do that, how can I know that there are any ...
1
vote
0answers
42 views

Arduino 1.05 SoftwareSerial Library

I am new to Arduino and I have 2 issues when I tried the BluetoothShieldDemo. I can only send data from bluetooth module(through serial monitor) to phone but I cannot send from phone to bluetooth ...
1
vote
0answers
30 views

Arduino Mega2560 and Eclipse pin error and communicaton

I can not connect the arduino mega 2560 to my eclipse projects. I have Avr-plugin set. It works with Uno. I can not read the MCU signature.I know that the clock frequency is 16Mhz and I set the port ...
1
vote
1answer
29 views

Error opening ports in C++ to Arduino in Ubuntu

I am programming in ARduino and I am try to connect Arduino with C++. I have the folowing function: //Prueba.cpp #include <iostream> #include <SerialStream.h> #include ...
1
vote
3answers
59 views

bitwise rotate operation for arduino

I'm programming an arduino for led matrix project with shift registers i have to rotate output value (which is a byte) but when i use "<<" operator it does not rotate the value properly ...
0
votes
1answer
49 views

How can I fix this error when executing GAE SDK in Ubuntu?

I was following the outlines of this guide (http://www.instructables.com/id/Aquaponics-Online-Temperature-and-Humidity/step3/Testing-GAE-SDK/), so I can try to innovate the design for my own aquaponic ...
1
vote
1answer
16 views

'AndroidAccessory' does not name a type error when I try to verify Hello World sketch from Beginning Android ADK with Arduino

So I've been working through the book and now I find myself stuck at page 49-50 trying to establish the first hint of communication between Android and my MEGA ADK 2560 R3 board. I should include that ...
-1
votes
0answers
38 views

Atmega/Ardunio simulator/emulator [closed]

I was wondering if there are any complete simulators/emulators for the atmega and accompanying arduino devices. From a quick look at the ide, you dont get any device simulation. Is there anything more ...
0
votes
0answers
17 views

Norduino Error Installing and loading node app.js

i was trying to install noduino, but i got this error I am running on a ubuntu 13.04, when i execute these commands, works fine $ > git clone [email protected]:semu/noduino.git $ > cd noduino $ ...
0
votes
1answer
93 views

Serial Communication Arduino to PHP

I´m working on a project in which I want to send sensor data from Arduino via Serial Communication to PHP. Unfortunately I can not read the Serial Port in PHP. However the other direction (PHP to ...

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