# Troubleshooting **URL:** https://forum.arduino.cc/c/forum-2005-2010-read-only/software/troubleshooting/114.md [Latest](https://forum.arduino.cc/latest.md) · [Categories](https://forum.arduino.cc/categories.md) --- ## [About the Troubleshooting category](https://forum.arduino.cc/t/about-the-troubleshooting-category/847554)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 0\ **Last updated:** [April 12, 2021, 12:19pm UTC](https://forum.arduino.cc/t/about-the-troubleshooting-category/847554 "2021-04-12T12:19:31Z")
Help getting the Arduino software up and running. --- ## [Sketch keeps going](https://forum.arduino.cc/t/sketch-keeps-going/49817)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 1\ **Last updated:** [January 24, 2011, 8:22am UTC](https://forum.arduino.cc/t/sketch-keeps-going/49817 "2011-01-24T08:22:24Z")
Okay so what i'm trying to do is make an LED dice based on the tutorial HERE http://www.instructables.com/id/Arduino-Led-Dice/ The "die" rolls and displays a number between 1&6I got the sketch he wrote up and it runs per… --- ## [Arduino Serial Monitor (Ubuntu 10.04 64bit)](https://forum.arduino.cc/t/arduino-serial-monitor-ubuntu-10-04-64bit/49816)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 9\ **Last updated:** [January 24, 2011, 7:42am UTC](https://forum.arduino.cc/t/arduino-serial-monitor-ubuntu-10-04-64bit/49816 "2011-01-24T07:42:03Z")
Hello, I am just getting started with Arduino development and am having a difficult time getting it to interface with Java. I am using Eclipse and trying to read serial data. I just noticed that I am getting the same er… --- ## [Problem with Receiving data at 1MBps ( 1000000bps)](https://forum.arduino.cc/t/problem-with-receiving-data-at-1mbps-1000000bps/49815)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 9\ **Last updated:** [January 24, 2011, 5:57am UTC](https://forum.arduino.cc/t/problem-with-receiving-data-at-1mbps-1000000bps/49815 "2011-01-24T05:57:47Z")
Hi , I am basically trying to interface a ROBOTIS Dynamixel Motor with an Arduino Mega Shield. The motor has an inbuilt ATMega8 which controls the motor driver,feedback ( potentiometer ) etc. It has a good communicatio… --- ## [SPI-transfer trouble Using SPIEEPROM as example](https://forum.arduino.cc/t/spi-transfer-trouble-using-spieeprom-as-example/49814)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 6\ **Last updated:** [January 24, 2011, 5:25am UTC](https://forum.arduino.cc/t/spi-transfer-trouble-using-spieeprom-as-example/49814 "2011-01-24T05:25:16Z")
Hi, I need a SPI-connection between the arduino and a DDS-chip. The DDS chip generates a signal with an adjustable frequency and phase. The frequency and phase is determined by a frequency or phase word which will be sen… --- ## [Sketchs have never imported to my UNO](https://forum.arduino.cc/t/sketchs-have-never-imported-to-my-uno/49813)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 2\ **Last updated:** [January 24, 2011, 4:15am UTC](https://forum.arduino.cc/t/sketchs-have-never-imported-to-my-uno/49813 "2011-01-24T04:15:13Z")
I just bought an UNO and am having a hard time getting sketchs to upload. I always get a message that says user confiuration does not exist. Maybe i did not install the driver properly. I am running on OSx. Please help. … --- ## [Do Not Use SPI Pins with LCD... Mega 2560](https://forum.arduino.cc/t/do-not-use-spi-pins-with-lcd-mega-2560/49812)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 4\ **Last updated:** [January 24, 2011, 3:09am UTC](https://forum.arduino.cc/t/do-not-use-spi-pins-with-lcd-mega-2560/49812 "2011-01-24T03:09:48Z")
Running into an apparent conflict between the LiquidCrystal library and the Ethernet and UDP libraries. I get invalid characters and such on the LCD. Unfortunately this is entirely expected and completely my fault. So if… --- ## [How to communicate text and numbers over serial](https://forum.arduino.cc/t/how-to-communicate-text-and-numbers-over-serial/49811)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 2\ **Last updated:** [January 24, 2011, 3:02am UTC](https://forum.arduino.cc/t/how-to-communicate-text-and-numbers-over-serial/49811 "2011-01-24T03:02:10Z")
Hi all, firstly, (i have two questions) I have two arduinos hooked up over serial, the tx pin on a duemilanove wired to the rx pin on a mega. I plan to do this wirelessly, but when i disconnect them from my computer they… --- ## [Running Arduino 0022 software](https://forum.arduino.cc/t/running-arduino-0022-software/49810)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 3\ **Last updated:** [January 24, 2011, 1:11am UTC](https://forum.arduino.cc/t/running-arduino-0022-software/49810 "2011-01-24T01:11:45Z")
I am using windows 7 and I am not sure to open this zip file. Every time I try I get C:\\Users\\Peter\\Desktop\\arduino-0022.zip could not be saved, because the source file could not be read. Try again later, or contact th… --- ## [Reading Multiple Buttons](https://forum.arduino.cc/t/reading-multiple-buttons/49809)
**Author:** [@colaboy](https://forum.arduino.cc/u/colaboy)\ **Replies:** 3\ **Last updated:** [January 24, 2011, 12:36am UTC](https://forum.arduino.cc/t/reading-multiple-buttons/49809 "2011-01-24T00:36:17Z")
Hi everyone. I'm very new to this stuff so please be gentle with me. I am trying to read the state of two buttons, each on their own pin. I then want to display a short message on an LCD, saying which button has been p… --- ## [Uno sending serial data becomes un-connectable](https://forum.arduino.cc/t/uno-sending-serial-data-becomes-un-connectable/49808)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 0\ **Last updated:** [January 23, 2011, 10:23pm UTC](https://forum.arduino.cc/t/uno-sending-serial-data-becomes-un-connectable/49808 "2011-01-23T22:23:10Z")
I've had an exceptional amount of difficulty getting the serial monitor working reliably in the arduino software v22 under Ubuntu Linux. It sometimes works if the amount of data coming over is very low or very intermitte… --- ## [Help get Arduino 21 installed on my Ubuntu machine](https://forum.arduino.cc/t/help-get-arduino-21-installed-on-my-ubuntu-machine/49807)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 14\ **Last updated:** [January 23, 2011, 4:36pm UTC](https://forum.arduino.cc/t/help-get-arduino-21-installed-on-my-ubuntu-machine/49807 "2011-01-23T16:36:11Z")
I've pored over dozens of posts similar to this topic, but I am LINUX and C illiterate, and am struggling. I need to get Arduino 0021 onto my Ubuntu V10.10 machine, in order to drive my Aduino Uno. I tried installing Ard… --- ## [Web server and servo interaction (BlackWidow)](https://forum.arduino.cc/t/web-server-and-servo-interaction-blackwidow/49806)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 2\ **Last updated:** [January 23, 2011, 2:26pm UTC](https://forum.arduino.cc/t/web-server-and-servo-interaction-blackwidow/49806 "2011-01-23T14:26:18Z")
Hello: I have a BlackWidow wifi arduino, and it's very cool. Run into a snag - I am using the supplied web library (#include WiShield.h) and have a web server up - this handles GET requests (return JSON) and as well yo… --- ## [Can't upload to Arduino Mega 2560](https://forum.arduino.cc/t/cant-upload-to-arduino-mega-2560/49805)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 10\ **Last updated:** [January 23, 2011, 1:07pm UTC](https://forum.arduino.cc/t/cant-upload-to-arduino-mega-2560/49805 "2011-01-23T13:07:12Z")
Hi all guys! I've just started a little project with my brand new Arduino Mega 2560 and things seemed to work till today when i came back from work. I connected the board via USB to the pc, tried uploading a modified ve… --- ## [Arduino version 0021 download failure](https://forum.arduino.cc/t/arduino-version-0021-download-failure/49804)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 1\ **Last updated:** [January 23, 2011, 1:01pm UTC](https://forum.arduino.cc/t/arduino-version-0021-download-failure/49804 "2011-01-23T13:01:43Z")
Having trouble downloading Arduino version 0021 What programs will open the software as it says it's unsupported? Where can I download? Regards, Pete. --- ## [reading digital INPUT for 30 sec: at least one 1](https://forum.arduino.cc/t/reading-digital-input-for-30-sec-at-least-one-1/49803)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 7\ **Last updated:** [January 23, 2011, 12:29pm UTC](https://forum.arduino.cc/t/reading-digital-input-for-30-sec-at-least-one-1/49803 "2011-01-23T12:29:51Z")
Hi! Problem: I have a digital input connected to a digital sensor, that of course sends 0/1. I need to check that, in 30 seconds, there has been at least one 1. How would you do that? I have never used arduino's cloc… --- ## [LinuxMint 10 - IDE install  \[SOLVED\]](https://forum.arduino.cc/t/linuxmint-10-ide-install-solved/49802)
**Author:** [@fanjanc\_gmail.com](https://forum.arduino.cc/u/fanjanc_gmail.com)\ **Replies:** 3\ **Last updated:** [January 23, 2011, 10:05am UTC](https://forum.arduino.cc/t/linuxmint-10-ide-install-solved/49802 "2011-01-23T10:05:15Z")
I have been working on linux for about a year now and love it, yet there are many little things that I just don't understand like the installation of software packages when not using the software manager or synaptic mana… --- ## [Help Required - RPM Counter With Analog input](https://forum.arduino.cc/t/help-required-rpm-counter-with-analog-input/49801)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 4\ **Last updated:** [January 23, 2011, 2:31am UTC](https://forum.arduino.cc/t/help-required-rpm-counter-with-analog-input/49801 "2011-01-23T02:31:11Z")
Hello to all, Can any anyone help me? I am trying to make a RPM counter using a hall sensor (UNG3503UA, connected to analog pin 0), by detecting when the voltage drops just below 1/2 of the operational output voltage. … --- ## [How to manage Arduino memory?](https://forum.arduino.cc/t/how-to-manage-arduino-memory/49800)
**Author:** [@1Pats](https://forum.arduino.cc/u/1Pats)\ **Replies:** 3\ **Last updated:** [January 22, 2011, 7:36pm UTC](https://forum.arduino.cc/t/how-to-manage-arduino-memory/49800 "2011-01-22T19:36:29Z")
I had created array of structures. It contains sunrise, sunshine and noon times for each day of the year- has predefined data. Looks like array is too long, as, if it contains more than 212 elements, code stops working … --- ## [Sketches can not be called main Change of IDE 22](https://forum.arduino.cc/t/sketches-can-not-be-called-main-change-of-ide-22/49799)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 10\ **Last updated:** [January 22, 2011, 3:57pm UTC](https://forum.arduino.cc/t/sketches-can-not-be-called-main-change-of-ide-22/49799 "2011-01-22T15:57:32Z")
A new change in 22 that was not noted. You can not name a sketch as main. This causes strange compiler errors where it will not find the included files. as such main.pde Main.pde MAIN.pde will not compile but ma… --- ## [Button deboncing in simon game](https://forum.arduino.cc/t/button-deboncing-in-simon-game/49798)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 2\ **Last updated:** [January 22, 2011, 3:03pm UTC](https://forum.arduino.cc/t/button-deboncing-in-simon-game/49798 "2011-01-22T15:03:37Z")
Hi. Im preety new to programming and microcontrolers world, and i want to make simon game, so i did it without copying any code. It is working, but the problem is that i made button debouncing but looks like i made some … --- ## [Can't edit sketch file!](https://forum.arduino.cc/t/cant-edit-sketch-file/49797)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 3\ **Last updated:** [January 22, 2011, 3:49am UTC](https://forum.arduino.cc/t/cant-edit-sketch-file/49797 "2011-01-22T03:49:11Z")
Forum, Total noob here with UNO and Macbook Pro. I open the BLINK sketch, upload it, led blinks... Life is good. Now, when I try to edit the file .. Nothing happens on screen. I can move the cursor around with the mo… --- ## [Is it possible to make Arduino talk without shield](https://forum.arduino.cc/t/is-it-possible-to-make-arduino-talk-without-shield/49796)
**Author:** [@Fredx](https://forum.arduino.cc/u/Fredx)\ **Replies:** 27\ **Last updated:** [January 21, 2011, 11:45pm UTC](https://forum.arduino.cc/t/is-it-possible-to-make-arduino-talk-without-shield/49796 "2011-01-21T23:45:36Z")
Hi! I was wondering if it is possible to make Arduino Duemilanove talk (using small speaker) without SpeakJet/VoiceBox shield? I mean just using software + speaker... Something like this --- ## [Quick Keypad Update Help](https://forum.arduino.cc/t/quick-keypad-update-help/49795)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 3\ **Last updated:** [January 21, 2011, 8:35pm UTC](https://forum.arduino.cc/t/quick-keypad-update-help/49795 "2011-01-21T20:35:59Z")
Keypad kpd = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS ); The above line works in arduino-0018, but not in arduino-0021. In arduino-0021 it says that: 'Keypad' does not name type. How would I fix that? --- ## [Fresh Start](https://forum.arduino.cc/t/fresh-start/49794)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 13\ **Last updated:** [January 21, 2011, 8:05pm UTC](https://forum.arduino.cc/t/fresh-start/49794 "2011-01-21T20:05:18Z")
Hi all. Im an ArduiNoob here. I have been trying to get my system to run some code written by TinHead over at LetsMakeRobots.com. I was getting compile errors due to avr/c++ library references. Anyways, I never did get t… --- ## [ATMEGA16 and Bootloaders.](https://forum.arduino.cc/t/atmega16-and-bootloaders/49793)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 3\ **Last updated:** [January 21, 2011, 7:30pm UTC](https://forum.arduino.cc/t/atmega16-and-bootloaders/49793 "2011-01-21T19:30:36Z")
I have finally learned how to upload hex into AVRDUDE using an Arduino as an ISP , but I can't get an ATMEGA16a to respond with the Blink code AVRDUDE says that all is well with the upload. Does this chip need a bootload… --- ## [Seeeduino Data Logging](https://forum.arduino.cc/t/seeeduino-data-logging/49792)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 5\ **Last updated:** [January 21, 2011, 5:52pm UTC](https://forum.arduino.cc/t/seeeduino-data-logging/49792 "2011-01-21T17:52:05Z")
I am trying to modify bicycle computer sketch written by CADJUNKI. This sketch prints serial data related to time pulses recorded from a bicycle wheel. I want to print data to the sd card but my modified sketch won't wor… --- ## [Why is the SD library slow?](https://forum.arduino.cc/t/why-is-the-sd-library-slow/49791)
**Author:** [@fat16lib](https://forum.arduino.cc/u/fat16lib)\ **Replies:** 12\ **Last updated:** [January 21, 2011, 4:23pm UTC](https://forum.arduino.cc/t/why-is-the-sd-library-slow/49791 "2011-01-21T16:23:45Z")
I am the author of SdFat, the base library for SD. Several people have asked me why SD is so slow in Arduino 22 when you use print() for numbers. Here is the reason SD is so slow and a way to speed it up by a factor of … --- ## [Iremote problem](https://forum.arduino.cc/t/iremote-problem/49790)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 1\ **Last updated:** [January 21, 2011, 1:09pm UTC](https://forum.arduino.cc/t/iremote-problem/49790 "2011-01-21T13:09:19Z")
I'm using the Iremote lib and my LG controller is: when I press any button, he send the code of this button one time ex: 551489775, and then starts sending a confirmation number (4294967295) that is being sent until I re… --- ## [Trouble starting IDE](https://forum.arduino.cc/t/trouble-starting-ide/49789)
**Author:** [@system](https://forum.arduino.cc/u/system)\ **Replies:** 2\ **Last updated:** [January 21, 2011, 6:09am UTC](https://forum.arduino.cc/t/trouble-starting-ide/49789 "2011-01-21T06:09:39Z")
I have just purchased the arduino Uno, and naturally I would like to be able to use it. However, I use linux (Ubuntu 10.10) and the default version of the IDE is 0018. This means I need to install a newer version to be a… [Next page](https://forum.arduino.cc/c/forum-2005-2010-read-only/software/troubleshooting/114.md?page=1)