Playback pattern sequences, C/C++ Programming

Assignment Help:

This task involves creating a new class(es) that will allow the system to playback pattern sequences using the Neo  Freerunner  hardware. The first thing to note is that the vibrator is treated similarly to how the phone views LEDs, meaning that the intensity of the vibration is determined by a number from 0 to 255 (brightness). Hardware on the Neo Freerunner can be read or written to by accessing special system files. The 'files' to access this hardware can be found in (these are easy-access symlinks): 

/sys/class/leds/

In this directory you will find several special files  that can  manipulate  its physical functionality (Linux: Device Files). An example of how to "Pulse" the Neo vibrator can be found inside the function SetVibrateNow within open source file:

/devel/qt-extended-4.4.2/devices/neo/src/plugins/phonevendors/neo/vendor_neo.cpp

The sample pattern files provided use the format of specifying the strength (0-255) and duration (milliseconds) of a single 'note' on each line of the file. For example, a file with:

150,1000
0,500

This means that the hardware should activate at a strength of 150 for 1sec, followed by nothing for 0.5secs. In the case of the LEDs, as there are three LEDs - the pattern file will be formatted as follows:


1,0,1,255,1000
1,0,0,255,500
1,1,1,0,1000 or 0,0,0,x,1000 (x can be anything)
1,1,0,255,1000

This means that, blue and red leds activate for 1sec, blue remains on for 0.5sec, no activity for 1sec, followed by purple (blue/orange) led for 1 second.

This module should only exist in PhoneBookDialog and can only be accessed by other classes using signal and slot connections made in PhoneBookDialog. 


Related Discussions:- Playback pattern sequences

C program to define power of a function, C program to define power of a fun...

C program to define power of a function: Write a program to use power of a function. void main() { int x,y,po=1,i,j; clrscr();   printf("Give x,y\n"); sca

Super ascii string checker, Program which can check the given string is su...

Program which can check the given string is super ascii or not

Want a scraping program created, Want a scraping program created Project...

Want a scraping program created Project Description: We need to hire a professional developer to scrape the site for information such as *product title *Product Price

Star, how can i print any english work using star .?

how can i print any english work using star .?

Data structyres, What data structure would you mostly likely see in a nonre...

What data structure would you mostly likely see in a nonrecursive implementation of a recursive algorithm?Minimum 100 words accepted#

Operation on string - c ++ program, Operation on String - C ++ Program: ...

Operation on String - C ++ Program: Write a program to define operations on string in c++. class String {    char *char_ptr;   // pointer to string contents    int le

Variable, what is local and global variable?give me some example to underst...

what is local and global variable?give me some example to understand better

Wap to print sum=1!+2!+3!+4!+....n!, WAP TO PRINT SUM=1!+2!+3!+4!+....N! ...

WAP TO PRINT SUM=1!+2!+3!+4!+....N! #include stdio.h> #include conio.h>   void main() {                    int n,i;                    float sum=0,fac

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd