Gavin

Washington University in St Louis

Last seen: 2 days ago | Active since 2024

Followers: 0 Following: 0

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Programming Languages:
C++, C, MATLAB, Arduino, Assembly
Spoken Languages:
English
Pronouns:
He/him

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Answered
Restart a USB connection
See this same issue with a solution here https://www.mathworks.com/matlabcentral/answers/2173049-how-do-i-reconnect-usb-serial-...

2 days ago | 0

Question

inputdlg() now crashes.
My program has been running fine for months. I updated Windoze 11 as MS kept bugging me to do and now inputdlg() doesn't work. A...

2 months ago | 1 answer | 0

1

answer

Answered
Random lags while running app
Turns out it takes a LONG time to update a graph. I moved the screen updates to happen AFTER the start of the next trial and th...

3 months ago | 0

| accepted

Question

Configure a callback in App Designer to be non-interruptable
I'm using USB connected Arduino device and have the following line: configureCallback(app.PicoCom,"terminator",@app.PicoInput);...

3 months ago | 1 answer | 0

1

answer

Answered
Small change in App Designer program and now it crashes App Designer
Good riddance to etchedin!

3 months ago | 0

| accepted

Question

Random lags while running app
I have an App Designed application that collects data from an Arduino Pico. The Pico runs individual trials with accurate to su...

3 months ago | 2 answers | 0

2

answers

Question

istable() returns false for my table
I create a table under certain conditions, later want to check if it is a table yet. Checking in the command window I get this ...

3 months ago | 1 answer | 0

1

answer

Question

Small change in App Designer program and now it crashes App Designer
I made a few changes to my program and now this version won't load properly. It crashes App Designer so I can't close it without...

3 months ago | 1 answer | 0

1

answer

Question

App Help Text can not be edited
When I do a Save As... (to create a new version of my app. in App Designer, it now (since 2023?) asks to reload as if it was bei...

5 months ago | 0 answers | 0

0

answers

Question

Incoming USB characters lost
I have an Arduino Pico connected to MATLAB and I use Terminated (CR/LF) trigger to read the input. Each message is about 10 to 1...

6 months ago | 0 answers | 0

0

answers

Question

How do I make EditText HorizontalAlignment to the right work?
Why can't I ask my question: How do I make EditText.HorizontalAlignment = 'right' work? Description is blocked from being us...

9 months ago | 1 answer | 1

1

answer

Question

Why is trailing back space removed from my folder name?
I have a subfolder named .\results (I give the whole name) Allowing the user to change it I have name app.defOutLoc as default ...

9 months ago | 1 answer | 0

1

answer

Question

Detecting a serial port valid after disconnect/reconnect
I asked before with a long question and got no answers, so let's keep it simpler. Serial port is connected to Arduino Arduino ...

9 months ago | 1 answer | 0

1

answer

Question

How do I reconnect USB serial that gets lost programatically.
MatLab R2024b using AppDesigner on Windows 10 Enterprise My GUI app connects to an Arduino which sometimes looses it's connecti...

9 months ago | 1 answer | 1

1

answer

Question

How can I keep my app in front on the screen?
When certain functions are called such as uigetfile() or uigetdir() after the file or directory is chosen the AD generated app g...

1 year ago | 1 answer | 0

1

answer

Question

App Designer 2024b broken
I was fine using AD in 2023b but now with 2024b I'm finding weird things. Asking if anyone else has seen these issues. (I also r...

1 year ago | 0 answers | 0

0

answers

Question

Not enough trace back to find error
Apparently I have {} where I should have () I guess. I get this warning but the traceback list doesn't go far enough to find my ...

1 year ago | 1 answer | 0

1

answer

Question

Short Pause doesn't come back
Using App Designer I was running my program with no breakpoints set. Suddenly it stopped running in a place it shouldn't so I b...

1 year ago | 1 answer | 0

1

answer

Question

Delete a timer object in it's callback
I have short timer callbacks to change a color from a button press or other action back to it's original color. This gives a nic...

1 year ago | 2 answers | 0

2

answers

Answered
Why did CD folder; give such a goofy error message when I just forgot ()
All good answers and I would have retracted the question once I noticed I'd forgotten the () Of course cd (apploc) is what I wa...

1 year ago | 0

| accepted

Question

Compare char data in a cell {'x'} to a character 'x'
I want to find what's in my table that's in a category column 1 If you read through you will see what I tries and how I finally...

1 year ago | 3 answers | 0

3

answers

Question

Why did CD folder; give such a goofy error message when I just forgot ()
It works other places but suddenly I can change directory K>> apploc apploc = 'C:\Users\CPSLab\Documents\OdorChoiceDev\' ...

1 year ago | 2 answers | 0

2

answers

Question

How do I do char2num (assume Ascii)?
num2 char is easy enough num = char(122) returns 'z' ; but how can I get back to the ascii value from a char? Do I really have ...

1 year ago | 1 answer | 0

1

answer

Answered
Error in MatLab's own routine.
Confusion between {} () and [] and when to use commas between elements and if they need quotation marks or not and if so ' ' or ...

1 year ago | 0

| accepted

Answered
USB callback "terminator" fails to trigger a read when messages are close together
See answers to other ways I asked this question and related issues https://www.mathworks.com/matlabcentral/answers/2152950-in-a...

1 year ago | 0

| accepted

Answered
How to develop a FIFO Circular Buffer for analyzing real-time data?
For a simpler case of needing a circular buffer to process USB or other irregularly timed input, try this: Initialize the buffe...

1 year ago | 0

Answered
In App Designed app: When does a function called within another function spawn a new thread?
See where @Umar laid it out very well my related issue and provided several solutions to that part of the problem https://www.m...

1 year ago | 0

| accepted

Answered
uiputfile blocks all of MatLab any error it keeps repeating, it requires CTR-ALT-DEL end task (my app) to exit
I changed from uiputfile() to uigetdir(startingFolder... as that is what I was really looking for: Where will the output files g...

1 year ago | 0

| accepted

Question

Can I call a function from another function and not come back?
I am running a function which at the end either returns or calls another function. Way back in the old days in assembler I'd do...

1 year ago | 2 answers | 0

2

answers

Question

waitfor( ) isn't working for a SerialPort
Seems simple my code does this to be sure everything has been processed from the USB port connected to an Arduino Pico. if (app...

1 year ago | 1 answer | 0

1

answer