Mar 16, 2015. Trying to debug I need to use serial out to a Ubuntu Terminal. But I get connection error. Using the CLI: gives me $ spark serial list Found 1 core(s) connected via serial: 1: /dev/ttyACM0. So the core is visible. But then: $ spark serial monitor 1 Opening serial monitor for com port: '/dev/ttyACM0' Serial err:. Arduino IDE and Drivers Installation Tutorial describes the installation of the Arduino IDE Development software and drivers for Windows XP, but the process should be.

Okay, I'm using Arduino&teensyduino totally fine until I updated my IDE. / on Win10 Few days ago I updated my my arduino/teensyloader to 1.68/1.28 then I couldn't start the serial moniter on my arduino IDE, and found something unusual: my each teensy 3.2 board has a different COM number(I think they are not different before?) All results with 'Error opening serial port 'COMx'.'

Something to do with Win10? Uploading the program is fine, with a 2~5 second delay after pressing the program button, and the new USB device sound is also fine the port is visible and selectable in IDE (not visible while programming), I just can't use my serial monitor. What I've tried: Restarting the computer, with power totally cut off: tried a few times, not helping Reinstall arduino/teensyloader: tried a few times, not helping Change the USB port/cable: not helping Working solution: change the driver?

GetFileAttributesEx D: Arduino libraries SD src File.cpp D: Arduino libraries SD src/SD.h: The filename, directory name, or volume label syntax is incorrect. Not always the same file, but something under the SD library folder. I had to restart the IDE or swap the build setting(etc. Board mini, or teensy) to compile again, which is annoying. Not sure if its related with the problem above or not, and not a really problem for teensy since i don't need to compile any sketch twice. Sorry for the Chinese interfaces, Thanks for any help ----edited---- another try: I reinstalled the IDE/teensyduino with a previous version 1.67/1.27 and the serial monitor is fine now.

Posting here because I have a similar sounding issue. I use my Win7 PC with no problems on Arduino Pro Micro. Initially, Teensy 3.2 seemed to also work fine via the Arduino IDE. However, for some unknown reason the COM port does not act as expected in the Arduino IDE. The symptoms are:. After connecting Teensy 3.2 via USB, Arduino IDE lists the port under Tools >Port even after the USB cable is removed. The Arduino IDE cannot open a serial monitor ('Port Busy') regardless if Teensy is plugged in, but can load new programs manually with button (verified via Blink program)..

The Arduino/hardware/tools/listComPorts and Windows device manager both accurately show whether the Teensy is plugged in via USB. I.e., while the Arduino IDE gets 'stuck', the actual Arduino background tool (not sure if it's used for Tools >Port) as well as Win7 both detect USB connection as expected..

This is the error message when trying to load new program: Found serial '. COM4', but unable to open for reboot request Windows Error Info: The system cannot find the file specified. Teensy did not respond to a USB-based request to automatically reboot. Please press the PROGRAM MODE BUTTON on your Teensy to upload your sketch..

I have tried messing with the registry/reassigning COM ports, but to no success. I have not tried re-installing Arduino, but would really prefer not to as I have made some modifications to the Arduino files. I tried using the Teensy 3.2 on my Win10 PC with Arduino IDE (same version of all Arduino/Teensy files) and currently have no issues. Would like to move back to my Win7 PC, and also hoping things don't stop working on Win10 in the meantime. I have uninstalled all USB descriptors with USBDeview.

That did not solve the issue or change the behavior as far as I can tell. I have downloaded TyCommander, and when I open it, it sees the Teensy on COM5. There are bi-directional arrows with a slash through them (meaning comm port detected but serial not enabled?). When I try to 'enable serial', I get a red exclamation mark and 'Device COM5 not found.' Also, no output is showing in the serial tab, even though I expect it to. So I believe it doesn't work with TyCommander either. Also, the same issue eventually occurred on a separate Win10 PC, so now Teensy doesn't work on either computer.

I don't know what causes the issue to spontaneously start occurring, nor how to reset the system to get rid of it. I have tried all solutions listed on these forums (including changing/resetting COM port assignments in the registry), so I'm not sure what else I could do. That shows some signs of life - though I'm not the one to interpret the Koromix TyComm output or general device connection spew as shown. Maybe unplug - pause and plug in again.

Not sure why RESET would go to 'bootloader' - there is a 'bootloader' GUI button that would do that? Perhaps having TeensyLoader open then 'Help / Verbose Info' might show something in Paul's format? Try to compile with RAW HID? I've not done much outside of Serial - but the time I did have a HID Teensy it was good that TyComm would talk with it, where the IDE would not. It seems there is something open in your system that is assuming/taking the Serial USB when it appears.

Not sure if 'Task Manager' would point that out if not seen otherwise? Anyone find a solution to this? I am experiencing the same behavior on a Windows 10, Arduino IDE 1.8.3, Teensy loader 1.37. Basically I can upload a sketch but I can't communicate over serial com port. One very un-scientific behavior. When I start up the IDE, I can open the Serial Monitor interface although it reports port is closed/busy. Then I try to open the plotter and nothing again seems to happen.

Then I go back to open the Monitor and it says it can't open while plotter is open. Now I don't know what the plotter is, but nothing seems to be different in the GUI to indicate a plotter is open. I'm assuming the plotter is the Teensy loader but that doesn't appear to be open. Anyone find a solution to this? I am experiencing the same behavior on a Windows 10, Arduino IDE 1.8.3, Teensy loader 1.37. Basically I can upload a sketch but I can't communicate over serial com port. I assume both of you are talking about the SW serial port over USB.

At work I'm using Win 10, and the SW serial over USB either work or doesn't, and I couldn't figure out why it fails for no apparent reason, or find any pattern to those failures. One bulletproof solution is to simply use the HW serial port (Serial1 on pin 2 and pin 3) -- that works flawlessly and reliably.

You do need a MAX232 or similar chip, five 1 uF capacitor, a DB9 connector and a serial cable if your PC has a serial port, or a DB9 and a serial to USB adapter if it doesn't. Stevedog69, unsure if you are using Teensy 3.2? First off Serial plotter is not the teensy loader, but is a tool for allowing you to plot out values. There are several places on the web that talk about this, including: Don't have any information here like what program you are trying to run? How is your Teensyduino configured? Like what is tools->usb type configured too? If you are having problems opening the Serial terminal program, things to verify: a) Did you configure the Port in the tools menu to be the one associated with your Teensy?

B) Have you tried rebooting to see if that resolves the issue. C) Do you have some other apps running that may be talking to serial ports? Stevedog69, unsure if you are using Teensy 3.2? First off Serial plotter is not the teensy loader, but is a tool for allowing you to plot out values. There are several places on the web that talk about this, including: Don't have any information here like what program you are trying to run?

How is your Teensyduino configured? Like what is tools->usb type configured too? If you are having problems opening the Serial terminal program, things to verify: a) Did you configure the Port in the tools menu to be the one associated with your Teensy? B) Have you tried rebooting to see if that resolves the issue.

C) Do you have some other apps running that may be talking to serial ports? Good luck KurtE Thanks for your reply, mine is a Teensy-LC and A) Yes, B) Yes and C) Not sure. I'm trying to communicate via serial on a Windows 10 laptop to a Teensy-LC with a 12 LED Neopixel Ring. The only program I am running at the time of the effort is the Arduino IDE desktop app.

Having said that, could it be that because at first I tried the web editor (and then learned it doesn't support Teensy).even if I don't have a browser open somehow the online editor leaves a hook in place that would seem to act like another process? Just a wild thought? I don't want to clear all my web history just to test but maybe I will if you think the idea has merit.

In we learned how to use for loops. For loops are very powerful and they are sufficient to take care of most of your looping needs.

However, there is another type of loop called a ‘while loop’. The while loop is not better than a for loop, it is just a different way of looping. In most scenarios you could choose to loop with either a for loop or a while loop. In we briefly introduced while loops, and used one to pause the program to wain on user input. In this lesson we will look in more detail at how while loops work. We will continue to work with this circuit, which you first built in lesson 3. If you need help putting it together go back and see.

This circuit will allow you to independently control two Light Emitting Diodes from the arduino microcontroller Also, we will continue to expand the code we developed in Lesson 6. At the end of Lesson 6, our code looked something like this. } You can see in the code above, we are prompting the user for data, then waiting, then entering the data for both numRedBlinks and numYellowBlinks. This allows the user to set the number of times the LED’s blink from the serial monitor. The way we actually do the blinking is with the two for loops. There is another way to loop, and that is with ‘while loops’. When you are writing code, often times you can choose a for loop or a while loop.

Some people frequently use both types of loops and some have a preference for one or the other and almost always use their preferred type of loop. It is good to know how to use both types, so here we will explore the while loop. Lets look at how one might work. } // end of the while loop Lets unpack this code and see how it works.

First, notice that the while loop will have one or more commands that it executes. It will execute the commands that are between the curly brackets. It will continue to execute the commands between the curly brackets as long as the ‘condition’ described in the parenthesis of the while loop is true. In the case above, it will continue to execute the commands between the curly brackets as long as j is less than or equal to ten. Notice that inside the loop we are incrementing j by 1 each time through the loop.

This ensures that it will eventually exit the loop. If we were to forget to increment j, the program would become hung in the loop. This would create what is called an infinite loop, and the program would become hung in the infinite loop. So, for the code above, we start by making j=1, then each time through the loop we increment j by 1.

The program will continue executing this loop until the condition is no longer true... For this case, at the point that j=11 the condition would no longer be true, the program would not enter the curly bracket, and would jump to the first line of code after the closing curly bracket. So, for this lesson what we want to do is replace the for loops in the original code shown at the top of this lesson with while loops. There is one for loop that blinks the red LED and one for loop that blinks the yellow LED. Replace those two for loops with while loops.

Lets look at the first for loop again. Your tutorials are the best that I have found yet. Drivermax Hack here.

Thanks for your work. I have one question. I have religiously entered code as I go along but I want to copy the code as of the end on session 6 so I can be using exactly what you are using as I do 7 etc. When I do that and then upload and try to see it in the monitor I get 4 little symbols — 2 squares, something that looks like a superscript s and something that looks like a “p”.

They will not copy so I can’t put them on this screen. What’s happening? Site Copyright 2014-2016 www.toptechboy.com. Send comments to paul.mcwhorter@gmail.com Disclosure of Material Connection: www.toptechboy.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Some of the textual links in this page may be 'affiliate links.” This means if you visit the link and purchase the item, I will receive an affiliate commission.

Regardless, I only recommend products or services I use personally and believe will add value to my readers. I am disclosing this in accordance with the Federal Trade Commission’s 16 CFR, Part 255: “Guides Concerning the Use of Endorsements and Testimonials in Advertising. Meta • • • • How to Know God.