# Menghan

### MathWorks

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**Content Feed**

BLE write to Arduino Nano 33 BLE is unsuccessful

Hi Nikunj, This is a known issue in MATLAB BLE characteristic interface. See external bug report here. If you use BLEWrite ...

12 months ago | 0

Cannot program Arduino Uno Board

Can you first confirm that the downloaded Arduino IDE works fine on your computer? To do that, go to the folder which is returne...

3 years ago | 0

Data acquisition from Arduino Uno and realtime plotting

arduino function creates a connection to the board each time you call it and only one connection to the board can exist at one t...

3 years ago | 1

| accepted

Custom Arduino Library won't register.

Hi Kevin, I know you have tried with the example add-on, but just to confirm it again, can you run the following code in MATL...

3 years ago | 1

| accepted

Is it possible to Create Custom Arduino Add-On Device, Library, or Code for Arduino DUE?

Hi Nicholas, Please contact MathWorks Technical Support for this issue and make sure you provide them your custom add-on cod...

3 years ago | 1

| accepted

Using matlab support package for arduino with any motor shield

Hi Derick, From what I find about this L298N motor shield online, it seems to only need digital IO and PWM signal for directi...

4 years ago | 0

| accepted

Solved

Produce a cosine wave

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/cosine-eqn.png>>

5 years ago

Solved

Connect blocks in a model

Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

5 years ago

I have matlab 2014a with support package but when i call arduino in command window this message is appeared:Updating server code on...

Hi Abbas, There are a couple things that can lead to this error. 1. Has the Arduino device driver been properly installed...

5 years ago | 0

How can I change SPI mode of an Arduino through Matlab?

It is a bug in MATLAB R2014b. If you are still looking for a fix, please contact MathWorks technical support to get a patch. ...

5 years ago | 0

Solved

Scrabble Scores

Given a word, determine its score in <http://en.wikipedia.org/wiki/Scrabble Scrabble>. The input string will always be provi...

6 years ago

Cannot connect Arduino Uno to Matlab R2014b

Can you turn the trace on when creating the arduino object? For example, a = arduino('COM3','uno', 'TraceOn', true); You need to...

6 years ago | 1

Cannot connect Arduino Uno to Matlab R2014b

Do you still have the same issue? If so, can you confirm that the port and board are both correct?

6 years ago | 0

Solved

Maximum running product for a string of numbers

Given a string s representing a list of numbers, find the five consecutive numbers that multiply to form the largest number. Spe...

7 years ago

Solved

Find the two most distant points

Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

7 years ago

Solved

Counting Sequence

Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...

7 years ago

Solved

Clean the List of Names

Given a list of names in a cell array, remove any duplications that result from different capitalizations of the same string. So...

7 years ago

Solved

The Goldbach Conjecture

The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

7 years ago

Solved

QWERTY coordinates

Given a lowercase letter or a digit as input, return the row where that letter appears on a <http://en.wikipedia.org/wiki/Keyboa...

7 years ago

Solved

Renaming a field in a structure array

MATLAB has a <http://www.mathworks.com/help/techdoc/ref/setfield.html setfield> and a <http://www.mathworks.com/help/techdoc/ref...

7 years ago

Solved

Test for balanced parentheses

Given the input inStr, give the boolean output out indicating whether all the parentheses are balanced. Examples: * If ...

7 years ago

Solved

Duplicates

Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...

7 years ago

Solved

Function Iterator

Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

7 years ago

Solved

Indexed Probability Table

This question was inspired by a Stack Overflow question forwarded to me by Matt Simoneau. Given a vector x, make an indexed pro...

7 years ago

Solved

Sums with Excluded Digits

Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9. no...

7 years ago

Solved

Remove all the words that end with "ain"

Given the string s1, return the string s2 with the target characters removed. For example, given s1 = 'the main event' your ...

7 years ago

Solved

Extract leading non-zero digit

<http://en.wikipedia.org/wiki/Benford%27s_law Benford's Law> states that the distribution of leading digits is not random. This...

7 years ago

Solved

Make a Palindrome Number

Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

7 years ago

Solved

Summing Digits within Text

Given a string with text and digits, add all the numbers together. Examples: Input str = '4 and 20 blackbirds baked in a...

7 years ago

Solved

Pattern matching

Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...

7 years ago