This is for questions about the official IDE. The open-source IDE makes it easy to write code and upload it to any Arduino board. It runs on Windows, Mac OS X, and Linux.

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3
votes
1answer
42 views

Wire.h not found!

Here's the code that's making this error: #include "Wire.h" Here's the error: fatal error: Wire.h: No such file or directory #include "Wire.h" ^ compilation terminated. Error ...
0
votes
1answer
19 views

Saving library example sketch getting error “you cannot save a sketch into a folder inside itself..”

I'm writing a library, and that library .cpp/.h code is in devel/arduino/libraries/LightBrightLib/. I have test code that calls that library, and an example program using the library. Right now they'...
0
votes
1answer
18 views

Changing the tick time in FreeRTOS

I am trying to use FreeRTOS's vTaskDelay() function in order to periodically execute tasks. The latest version of FreeRTOS came with the "tick" time set to 15 ms. Therefore, the smallest resolution I ...
1
vote
1answer
30 views

How to simply close a tab?

How can one close a tab in the Arduino IDE? There is a Tab button (little triangle) with the Option "Delete"(kind of misleading term). There is no "Close" option. And the "Delete" option doesnt do the ...
0
votes
0answers
20 views

Hex file to ino file? [duplicate]

I need to convert a hex file back to an ino file, so I can edit my 3d printers settings in the arduino ide. How can this be done?
1
vote
2answers
26 views

Linker error when trying to use functions in separate header and source files

It is my first day of working with Arduino (it is a Due). I want to read from TMP102 through I2C. I wrote some code and it works just fine. But now I want to separate the TMP102 code from the main ...
0
votes
0answers
30 views

Can't select serial port on the IDE (Ubuntu)

I am aware that similar questions have been asked, however I haven't found an answer to my specific question. When I connect my Arduino (Uno) to my USB port, the on light on the board comes on (and ...
0
votes
0answers
45 views

Trouble with ESP8266 and DHT11

I'm using a setup described in this adafruit article for a humidity/temperature sensor-to-database module, and I'm consistently getting the same error messages: trying to connect flush start setting ...
0
votes
1answer
43 views

Significant drop in speed between Arduino IDE and Visual Studio?

So, I'm not sure what is causing this, but maybe I'm overlooking something simple. I have a simple program designed to read the analog input at 640 Hz, it looks like this: int Ch0 = 0; int count = 0; ...
1
vote
2answers
53 views

Unable to create a desired periodic signal with Arduino Mega 2560 and DAC0808

I wrote the code to produce the periodic signal by using arduino and DAC0808 where i turned on and off the respectively pins of PORTA by using a logic in iterative manner and created the periodic ...
1
vote
2answers
40 views

ESP8266 - Error: unknown opcode or format name 'jmp'

I bought a nodeMCU 8266 and I'm hoping that it can replace my bulkier UNO+WiFi 101. I'm getting an error when I compile: Error: unknown opcode or format name 'jmp' I'm using it in void SoftReset() ...
0
votes
1answer
16 views

Arduino: Sending SD CSV file online at specific time of the day

I intend to perform data logging from sensors and store it on SD card as CSV format. The data is related to weather and I would like to send it at the end of the day/ Any available codes how to deploy ...
2
votes
2answers
66 views

Difference between Arduino IDE giving me headaches

For some time now I've been playing around with the latest version of Arduino IDE and my UNO and ATTiny with simple 433 RF links with the Manchester Library. It all worked fine, but for my next ...
1
vote
0answers
24 views

How to reset the nodeMCU module

I've flashed AT firmware onto my nodeMCU development board and when I reconnect it, the built in LED gets switched on and the module continuously sends some garbage data to the serial monitor. So how ...
1
vote
1answer
28 views

Arduino Pi-3 Ubuntu MATE not compiling

When I try to upload a script to my Genuino Uno from the Linux ARM distro on genuino.cc/downloads it spits out this during compiling. avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission ...
0
votes
0answers
15 views

Transmit data to my reciever

First things first; I am absolutely clueless about what I have to do in order to sent my data wirelessly. I have: - Sodaq Mbili board - TD1208 module - Some sort of bee/shield, with an antenna on it ...
3
votes
1answer
63 views

Avoid the 10 attempts of Avrdude when programmer is not responding

Sometime I update my sketch in the Arduino environment, and when I click on the transfer arrow but forget to plug my arduino (I'm using the UART in my project so every time I need to plug/unplug some ...
0
votes
1answer
29 views

Circumventing overflow error by pushing data into computer?

It seems in certain applications, for example signal processing, Arduino and other micro-controllers in general run into the overflow error when they're trying to store even moderate amounts of data. ...
1
vote
1answer
24 views

Read int from Serial

with the following sketch I should be able to read and store what is entered in the Serial monitor void setup() { Serial.begin(115200); while(!Serial); } void loop() { Serial.println("Enter ...
0
votes
0answers
13 views

transfer and save data from arduino to matlab

I have an arduino and an e-Health Sensor Platform V2.0 that receive some data. I want to transfer and save those data to Matlab for processing them. Do you know how I can do that?
-1
votes
2answers
55 views

IF, ELSE IF functions not working with analogRead

not sure what is going wrong in the code below, but it's a simplified code of a larger piece I'm trying to debug. I notice that the code seems to skip to the else statement even though the if ...
0
votes
1answer
27 views

Arduino IDE/Visual Micro - Undefined reference to constructor

I am using Visual Studio Community 2015 with the newest version of the Visual Micro Arduino Plugin, however I also tried compiling my code in the Arduino IDE. When compiling my code, there is the ...
1
vote
1answer
81 views

Which (Official) Arduino IDE to use? [closed]

I have bought an Arduino UNO that turned out to be the Italian version (Arduino SRL) not the American one (Arduino LLC). Now when I go to arduino.org and arduino.cc, they both have different versions ...
0
votes
0answers
5 views

Espressif flash download tool

I'm trying to flash AT firmware onto my nodeMCU using the Espressif flash download tool.The COM port option on the download tool has only nine COM ports listed(COM1 to COM9) but my laptop always ...
4
votes
1answer
51 views

How to handle multiple simultaneous Arduino development environments?

I am developing for several different target microcontrollers (on OS X 10.11), which requires some unique combinations of (Arduino) IDE version, library versions, USB drivers, support software, etc. ...
-1
votes
1answer
46 views

How to determine Flash Size

I need to determine the flash size of my ESP8266 on my nodeMCU Module in order to flash the AT firmware onto the board. Apparently the different boards come with differently sized flash memories. Can ...
1
vote
0answers
54 views

Motion triggers email or text [closed]

I am trying to create a prototype for a nonprofit. Basically the Arduino 101 board would be able to send an email/text when it senses movement. It is equipped with an accelerometer which could ...
0
votes
1answer
23 views

Arduino/Genuino not in board list

I've downloaded the Arduino IDE and the Genuino isn't in the list of boards. I'm running Rasbian and used the command line to install.
1
vote
0answers
36 views

Board info: Unknown board [closed]

I did the AT&F command and I guess it is the Factory command, how do I fix this? I tried searching it up but I don't seem to find it.. I have a Sodaq Mbili board.
0
votes
1answer
26 views

Using HC-05 to play a sound on an app

I connected a HC-SR04 Ultrasonic Sensor to Arduino Uno and built the circuit as shown in the link below. I also used the code below the link. Together, this code and the circuit detect any motion that ...
0
votes
0answers
12 views

How do I broadcast my signal from my Sodaq Mbili to another sensor

am sorry for my maybe unclear explanation but here we go. I have a Sodaq Mbili and a KY-028 Temperature Sensor. It's hooked up and connected to my pc. I want to use the antenna of my Mbili (board?) ...
0
votes
0answers
26 views

Arduino IDE “Tools > Serial Port” grayed out (Ubuntu)

I know this has been asked before, but no one's solutions I've seen have worked so far. I just got started with Arduino and downloaded Arduino IDE from the Software Center. When trying to to set up my ...
0
votes
2answers
27 views

teensy as a keybooard throws error as keyboard input

I have a program (bash script) I wrote that is for stop motion animation. The script works perfectly, when I use any given keyboard on my laptop, and it works on other computers, as well. So i wanted ...
1
vote
2answers
29 views

calling a random function number

I have a recurring problem that when I'm controlling leds, I make several different functions for different fx and just want to trigger them randomly but having a hard time to formulate it in an ...
0
votes
2answers
33 views

No Response to AT commands

I'm unable to communicate with my nodemcu ESP8266 module using the AT commands. The module does not return 'ready' on the serial monitor and entering AT commands has no effect at all. I am able to ...
0
votes
1answer
25 views

Question about number of sensors for Arduino Mega

What is a good max number of sensors for an Arduino Mega? Since it has like -- 2? -- ground connections, is it better to keep the number of sensors to a minimum amount?
1
vote
0answers
39 views

How do I turn off the blinking cursor/caret in the Arduino IDE?

I just purchased a RedBoard, knowing that it would work on Linux, and knowing that it could allow me to easily interface with some electronics project. I am aware of the ino command line tool but I ...
1
vote
0answers
53 views

Arduino Morse decode Project suggestion and rectification required?

Ive been developing a project that takes the input fromt the users breathe in morse format and converts intro english sentences and interpret them as audio signals and play the whole sentence. Almost ...
0
votes
2answers
26 views

Arduino IDE unable to see serial connection on OS X El Capitan

For some reason the Arduino IDE is unable to see my Arduino Uno even though it is connected. I have reinstalled the Arduino software, but no luck come of it. I connected the Arduino to my friends mac, ...
0
votes
1answer
35 views

Delay function not working as intended

int j; void setup() { for(j=2 ; j<=9 ; j++) pinMode( j , OUTPUT ); digitalWrite( 2, HIGH ); } void one() { digitalWrite( 3, HIGH ); digitalWrite( 4, HIGH ); } void all_off() { ...
0
votes
1answer
67 views

Error on UNOr3--> avrdude: ser_open(): can't open device “/dev/ttyUSB0”: No such file or directory ioctl(“TIOCMGET”): Inappropriate ioctl for device

When I try to upload my program on the Arduino UNO chinese clone, It says -> avrdude: ser_open(): can't open device "/dev/ttyUSB0": No such file or directory ioctl("TIOCMGET"): Inappropriate ioctl for ...
0
votes
1answer
41 views

What is the output of Software Serial .read() function

Hi I am new to arduino development i was using esp8266 using software serial library here is the code #include<stdlib.h> #include <SoftwareSerial.h> SoftwareSerial monitor(2, 3); //...
0
votes
2answers
42 views

How to set float to variable with 7 digits after the decimal point in arduino?

Example: float x = 3154681.124 / 100000; //x = 31.54; I want x to be: x = 31.5468112;
1
vote
1answer
35 views

How to use web data from GSM sim 900 to be used as input for Arduino?

I have GSM SIM 900 connected with Arduino UNO. I'm successfully able to use HTTP READ command to show any data from web on the serial monitor of Arduino. It is showing complete HTML from that URL on ...
0
votes
0answers
23 views

Edited library .cpp isn't changing / compiling

I've made some minor changes to a library (just the .cpp, not .h), and the changes aren't taking effect when compiling. Even outlandish errors have no effect. I've tried in VS2015 (my normal ...
0
votes
0answers
41 views

What programmer do I select in Arduino IDE for the ATMEL-ICE ISP?

I have been using an AVRISPmkII for many years and have just transitioned to ATMEL-ICE ISP after the AVRISPmkII became unavailable. Occasionally, I like to program the Arduino Uno from the Arduino ...
4
votes
2answers
89 views

Can I use arduino's 3.3 V output directly to esp8266?

I just bought esp8266 and ftdi usb driver, I want to power the esp8266 with Arduino's 3.3 V output, is that possible? I saw some tutorial on youtube in that they are suggesting us to use 3.3v ...
0
votes
2answers
207 views

fatal error: ESP8266WiFi.h: No such file or directory

I used platformio IDE I did "platformio lib install 1101" (http://platformio.org/lib/show/1101/ESP8266wifi), I installed this: http://platformio.org/lib/show/549/WebSockets (follow instructions) ...
1
vote
0answers
47 views

How do I use the NRF24L01? [closed]

I am a high school student and I need to build a remote controlled car for a school project and I have to use arduino. I am fairly new to arduino, but I understand the basics. Also I'm kind of ...
0
votes
0answers
31 views

Arduino GSM GPS Shield doesn't do the GSM_READY check

Before you mark this question as duplicate, please note that I have already tried this, this and this. I bought an Arduino UNO R3 & a SIM808 GSM/GPS shield recently. The RX of the Shield is ...