All Questions
0
votes
1answer
27 views
Arduino UNO suddenly not recognized in windows 8.1 (code 43)
I had my arduino uno connected to an external 12V supply for 2-3 hours as I was working on other parts of my project. Suddenly the voltage from pin 9 which I was monitoring in the oscillator dropped ...
1
vote
0answers
10 views
Hiduino as a Serial-USB midi coverter
I have an Arduino Mega2560 configured to Hiduino, which makes the Arduino a driverless class-compliant MIDI interface.
I am currently converting RS232 serial I/O data to midi data using the 'hairless ...
0
votes
0answers
17 views
Good book to learn arduino programming? [duplicate]
I am looking for a good book to learn arduino programming , I am fairly good in c++ .
0
votes
0answers
19 views
Type of sensors [on hold]
Which type of sensors are used in following Arduino Boards:
1. Arduino Gemma
2.Arduino Yun
3.Arduino Uno
4.Arduino Due
5.Arduino Duemilanove
6. Arduino Robot
0
votes
2answers
51 views
How do voltage and resistance work for two 5v servos when using an external 12v power supply?
I have a 12v/1.5 amp barrel plug power supply on my Arduino Uno. I have two servos that say they are rated for 4.8v to 6v, but no amps are specified. When my circuit is configured as it is in this ...
0
votes
1answer
37 views
Can arduino create a file in its memory?
I am an arduino enthusiast and i am new to it.just wanted to know weather the micro processor itself could create a file in its memory while its is running. I know that it is possible to read a write ...
0
votes
1answer
11 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 ...
1
vote
3answers
58 views
Detecting grass, pavement, gravel
I think about building my own robotic mower, therefore I would like to detect if the surface the mower in moving on is grass, pavement, gravel ... etc.
Which sensors would be the best choice in order ...
0
votes
2answers
40 views
How to eliminate noise from PWM controlled 12V fan at low speed
I am trying to build a simple fan controller (single fan). So far I have successfully created a circuit which powers the fan with an external 12v DC adapter and added a transistor (NPN) to switch it ...
0
votes
1answer
31 views
Why does an Arduino MEGA 2560 have different PORTS
I'm currently looking at my Arduino MEGA 2560 board and was just wondering why there are different ports to it e.g. ANALOG IN, DIGITAL, Communication? in fact I've only seen this in some ...
0
votes
0answers
15 views
GSM shield SIM card troubles
So I'm trying to use the GSM shield to communicate with my smart phone. The SIM card that came with the shield only works with other devices on that network, and it's an obscure latin network that I ...
0
votes
1answer
33 views
Car dome light fading with arduino nano
So I'm working on my car and now I've got my sights on the electrical system. I've installed a keyless entry system and a pulse timer for the dome light. Now, I'd like to give the dome light the fade ...
0
votes
1answer
44 views
ATMega328P not running sketch in standalone (works in Uno R3 Board though)
I bought an ATMega328P-PU and burned OptiBoot onto it using a second Arduino Uno R3 with great success.
I then put the microcontroller back on the (empty) Uno R3 (DIP) Board for programming, ...
0
votes
0answers
7 views
Maxbotixs LV-EZ4 analog read question
I am using an external 5 volt power supply to power my Sonar, and I am using a Teensy 3.1
to read in analog signal from the sonar. my question is since the teensy is only 3.3v tolerant with analog ...
0
votes
0answers
12 views
pcf 8591 arduino and labview
Is it possible to connect p0cf 8591 adc / Dac kit to arduino through labview interface for arduino. i want to take data from analog sensor to pcf 8591 to arduino to labview for processing. Arduino is ...
1
vote
2answers
140 views
Error: 'SofwareSerial' does not name a type
I have trouble compiling this sketch. The error I get is
'SoftwareSerial' does not name a type
Any ideas how could I fix it?
#include SoftwareSerial.h
SoftwareSerial mySerial(10, 11); // RX, ...
0
votes
1answer
31 views
Cheap arduino wi-fi TRIGGER
I am looking for cheap way to have very basic wireless communication between an Arduino and a iphone.
I don't need to send complex data, it would be sufficient to "trigger" the arduino: let's say it ...
1
vote
2answers
54 views
PROGMEM: do I have to copy data from flash to RAM for reading?
I have got some difficulties understanding the memory management.
Arduino documentation says, it is possible to keep constants like strings or whatever I don't want to change during runtime in ...
1
vote
4answers
173 views
Importance of resistor
I'm new to Arduino and also new to electronics. I'm following the tutorial here. I'm not understanding the importance of the resistor in this schematic diagram. Can someone please help me on this?
0
votes
1answer
59 views
How to sense snow and ice?
We are building an outdoor snow melting system for the pavement. It would be nice if it could turn on itself only when it is needed: if there is snow, ice in the surface or the pavement is wet and the ...
0
votes
2answers
34 views
IRremote library and moteino
Somebody knows if IRremote library (http://www.righto.com/2009/08/multi-protocol-infrared-remote-library.html) is compatible with moteino boards?
If not, do you know a cheap solution to build a ...
0
votes
0answers
21 views
tone() and PWM limits
I'm developing an active sonar using costas arrays and golomb rulers. I need the arudiono to switch between frequencies very quickly to shorten the length of the ping, both to improve processing and ...
0
votes
1answer
19 views
Cannot send two arguments from a WebClient
I am using the Arduino WifiWebClient to insert records into a RoR (Ruby on Rails) app. It works but it only inserts one field regardless of the number of arguments I send.
For example, if I test ...
0
votes
0answers
27 views
Stream audio from smartphone to arduino
Is it possible to stream audio from smartphone to my arduino?
And if yes, what does it require?
Does it require programming from the smartphone side?
I know programming on the arduino. I have even ...
1
vote
1answer
27 views
Controlling ESC with Arduino
I want to control these motors: hexTronik DT750 Brushless Outrunner 750kv with this battery: Turnigy 2200mAh 3S 25C Lipo Pack and these ESCs: TURNIGY Plush 18amp Speed Controller.
I am new to this ...
0
votes
0answers
23 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 ...
1
vote
1answer
65 views
What does the line “while (! Serial);” do in an Arduino program?
I'm new to Arduino, and I am trying a couple of tutorials. What does this line do in a program?
while (! Serial);
0
votes
2answers
15 views
Help connecting an Arduino and an electronic speed controller
We have this controller that we are planning to use with this motor. How do we plug it to the Arduino to make it work?
This is a totally new subject for our school team, since we are mostly ...
0
votes
0answers
9 views
IPC between Node.js and Arduino Sketch on Intel Galileo
I want to communicate between a Node.js server and an Arduino Sketch. I discovered that there are three ways to do it:
Files
UDP
IPC
I can probably implement files, but I need to read sensor ...
0
votes
0answers
17 views
Can I use a “DS Touch Screen Breakout” to connect A13-TS7 touch screen?
I have to use this touchscreen https://www.olimex.com/Products/OLinuXino/A13/A13-TS7/ with my arduino uno.
What connector can I use for it? Is the DS Touch Screen Breakout (for example this ...
1
vote
2answers
27 views
I can't scroll Arduino IDE's example & scketch lists down
I have Arduino IDE 1.0.5 in win7 x64. I have so many library units. A pity that I can't scroll down to my other options. Is it Arduino.exe's problem or something else? How can I add triangle to scroll ...
1
vote
2answers
60 views
Adjust resistance of a circuit
I need to emulate a component that measures an input mechanically and varies resistance from 0 to infinity (a more detailed set of specs list it at 20-1,000ohms, though I'll have to actually check its ...
0
votes
2answers
41 views
How do you wire a ssr relay to a arduino nano
I am trying to wire a fss1-102z 5v ssr relay to my arduino nano but i cant get it to work here is my circuit. It stays stuck on and i cant get it to turn off.
Bluetooth control code
char val; ...
0
votes
2answers
45 views
Simple compiler design help: Variable length arrays in Arduino?
I'm trying to write a simple compiler in the Arduino language that I am making up for my lab. The compiler will have to be able to turn a string like this:
"do command_one 3 times"
into a data ...
0
votes
2answers
19 views
Simple compiler design help: Variable length arrays? [duplicate]
I'm trying to write a simple compiler in C++ for a language that I am making up for my lab. The compiler will have to be able to turn a string like this:
"do command_one 3 times"
into a data ...
0
votes
2answers
16 views
Using timers on an Arduino Mega 2560
I'm an amateur and I wish to use timers in my project. I'm using an Arduino Mega 2560 with a touch-sensitive screen with six DS18B20 temperature sensors and a DS1307 RTC (real time clock). I would ...
0
votes
3answers
38 views
How to wait for next n bytes in I2C exchange?
I'm trying to get data from a sensor, but don't see how I can get data back. I'm looking at the data on the I2C bus with a logic analyzer, and I'm sending what I expect, but I seem to cut off the ...
0
votes
1answer
23 views
How can I stop SoftwareSerial from receiving data and re-enable it at some other point?
My project involves and RFID reader connected to an Arduino Pro Mini (5V, 16MHz) and an Adafruit CC3000 breakout WiFi chip. The device reads RFID tags and sends them to my web service. I am using ...
4
votes
1answer
61 views
How do send sketch updates to devices without the editor?
I'd like to update the sketch of a device that a friend out of state is testing. I could have them install the full editor and send the source code but I'd rather not require them to do something so ...
0
votes
1answer
31 views
Using IMU for a small Arduino and bluetooth support
I'm gonna start a project with an IMU with a bluetooth support inside a small board (mini or lillypad) and send datas to the mobile phone. But I'm quite new to those kind of technologies.
I'm going ...
2
votes
1answer
110 views
Extract .hex from ATtiny45 using Arduino
As it is possible to program a ATtiny45 using Arduino as ISP Programmer, is there a way to backup an ATtiny45 program to a .hex file using Arduino?
0
votes
0answers
21 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 ...
0
votes
2answers
55 views
How to use output from Arduino in c++ code?
I am a complete novice in Arduino and moderatly experienced with the language c++. What if I want to use the output from the serial monitor in a c++ code in real time. Also how can I write to the ...
0
votes
1answer
50 views
Arduino NRF24L01+ arduino to netmf transmit issue
I want to communicate between Arduino Mini Pro (china import) and a stm32f4 running netmf runtime. At the moment I'm able to communicate between SPI1 and SPI2 on the stm32 board.
After that I ...
0
votes
0answers
19 views
Undefined behaviour by Arduino ethernet shield(Counterfeit one)
I am using a arduino ethernet shield (non geniune) mounted over arduino mega. I run a web server on it.Both ethernet and sd card initialisations are successful It runs quiet well but ...
1
vote
0answers
29 views
Arduino Software Serial reading a value of zero after several reads?
I am using the ID12-LA RFID reader with an Arduino Pro Mini (5V, 16MHz). I am also using the software serial library to read the serial data form the reader.
Initially the serial data is being read ...
1
vote
2answers
62 views
Debugger for Code::Blocks + Arduino
I am not very experienced in this, but I was wondering if Code::Blocks has a way of getting a debugger that runs for Arduino chips, specifically. I understand there is Arduino IDE for but does it ...
0
votes
2answers
64 views
Arduino can't create file in sd card
I need to write and read some data from SD card. I link SD card(LC STUDIO) to Arduino (UNO). I use this link for create my project. In first day I don't have any problem and data correctly save to ...
0
votes
1answer
32 views
While using Arduino Ethernet shield, do we need to explicitly select/Deselect SD and W5100 in our code?
It has been mentioned here http://arduino.cc/en/Main/ArduinoEthernetShield that corresponding libraries take care of chip select between SD and W5100 in Arduino Ethernet shield. Does it take care ...
1
vote
1answer
93 views
PWM generation using Registers
I'm using the Registers of the Arduino micro to get a signal for Electronic Speed Controllers (ESC) for brushless motors.
As far as I read, ESCs interpret everything they can, while just ignoring too ...
