fastl | Get the best times | SDK library

by Viladoman C++ Version: Current License: MIT

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kandi X-RAY | fastl Summary

fastl is a C++ library typically used in Utilities, SDK applications. fastl has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

WORK IN PROGRESS - Currently building the proper toolset to properly develop a good fast compiling API. C++ STL subset with faster compile times. Get the best times while iterating on features while getting all the performance from the real STL when compiling your release builds. A preprocessor define choses to use FASTL naive implementations or the real STL.

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Support

fastl has a low active ecosystem.

It has 5 star(s) with 0 fork(s). There are 1 watchers for this library.

It had no major release in the last 6 months.

fastl has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of fastl is current.

Quality

fastl has no bugs reported.

Security

fastl has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

fastl is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

fastl releases are not available. You will need to build from source code and install.

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fastl Key Features

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fastl Examples and Code Snippets

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Community Discussions

Trending Discussions on fastl

Make blocks of 10 LEDs

Infrared not returning 1 as correct value

Environment Variables for Arudino / ESP32 module code

FastLED library not working when iterating through the LEDS backwards

How to pass template arguments via constructor?

switching between functions using an IR remote

FastLed Libary use the CRGB as attribute

FastLED breathing effect with max brightness

How can I combine these two for loop statements?

Arduino for statement error. Expected ')' before ';' token. How to fix this?

QUESTION

Make blocks of 10 LEDs

Asked 2020-Nov-10 at 21:23

I want 10 leds Red and next 10 White, and that repeated until I reach the end of the led string.

This is the worst code, but it works.

What is the right way to do this? Must be very simple, but I can't figure it out

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ANSWER

Answered 2020-Nov-10 at 21:22

You could replace:

Source https://stackoverflow.com/questions/64776618

QUESTION

Infrared not returning 1 as correct value

Asked 2020-Oct-28 at 20:17

I am trying to create a glove that when you turn your wrist down it sends 1 as an IR signal and if you turn your wrist up it returns a 0 for the glove I used javascript:

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ANSWER

Answered 2020-Oct-28 at 20:17

Have you tried:

Problems with Receiving
If receiving isn't working, first make sure the Arduino is at least receiving raw codes. > The LED on pin 13 of the Arduino will blink when IR is being received. If not, then there's probably a hardware issue.

If the codes are getting received but cannot be decoded, make sure the codes are in one of the supported protocols. If codes should be getting decoded, but are not, some of the measured times are probably not within the 20% tolerance of the expected times. You can print out the minimum and maximum expected values and compare with the raw measured values.

The examples/IRrecvDump sketch will dump out details of the received data. The dump method dumps out these durations but converts them to microseconds, and uses the convention of prefixing a space measurement with a minus sign. This makes it easier to keep the mark and space measurements straight.

IR sensors typically cause the mark to be measured as longer than expected and the space to be shorter than expected. The code extends marks by 100us to account for this (the value MARK_EXCESS). You may need to tweak the expected values or tolerances in this case.

The library does not support simultaneous sending and receiving of codes; transmitting will disable receiving.

from: http://www.righto.com/2009/08/multi-protocol-infrared-remote-library.html

P.S. I would have preferred to comment this and ask, but sadly I am new and my reputation still needs some work :)

Source https://stackoverflow.com/questions/63224736

QUESTION

Environment Variables for Arudino / ESP32 module code

Asked 2020-Sep-26 at 01:56

I have some simple FastLed & wifi code on my ESP32 module, but I don't want to store my WIFI ssid & password in the code (on github). So i'd like to have that info in a separate file that doesn't get checked into source control but DOES get compiled and loaded onto the ESP32 during the upload process. Is this possible?

I'd imagine I would have a wifi.env.json file or something that is read at compile time, the variables are used in the code in the correct places, and then the compiled code w/ those variables are uploaded to the ESP32.

i'm a web developer and this is a common practice for that community, just curious if it's possible for arudino/ESP32 code also.

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ANSWER

Answered 2020-Sep-26 at 01:56

I have a separate header with projects like this with a name like WiFiCredentials.h The body of that file will just be:

Source https://stackoverflow.com/questions/64072448

QUESTION

FastLED library not working when iterating through the LEDS backwards

Asked 2020-Aug-08 at 10:37

Im having issues where my code running up the w2812b strip is working fine but when I run down the strip I get an error.

This is the error

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ANSWER

Answered 2020-Aug-08 at 10:37

for(int i = NUM_LEDS; i > 1; i--)

Source https://stackoverflow.com/questions/63313357

QUESTION

How to pass template arguments via constructor?

Asked 2020-May-31 at 16:44

I'm looking for a way to pass the template arguments of a template-based class (the main class of the FastLED library on Arduino, to be specific) via the constructor of my own class (which should basically wrap the FastLED library). I want to specify the template arguments necessary to initialize FastLED in the main function, so that all pre-configuration before compiling (i.e. the #defines in the third code block below) works via constants in the main file. How can I achieve this?

Currently, my class looks like this:

LEDState.h:

...

ANSWER

Answered 2020-May-30 at 15:01

No. What you want to do is not possible.

Your question is related to this, and the same answer applies.

What you want to do would be achieved by a class template. For instance:

Source https://stackoverflow.com/questions/62103842

QUESTION

switching between functions using an IR remote

Asked 2020-Apr-30 at 06:02

I have bought a WS2812B Led Strip. I'm trying to controll it with a IR remote. it is all controlled by a arduino uno.
I know the leds work and i know the remote works. I'm trying to pre-program a few animations on the remote.
The code below is as far as i got. I can show one animation, but i have to wait until it end to change it to onother one.
Is it possible to interupt this (becouse some animations are infinite) when i push a button to choose another animation?

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ANSWER

Answered 2020-Apr-30 at 06:02

Instead of using infinite loops, you can just check for if any other command is received.

E.g:

instead of

Source https://stackoverflow.com/questions/61514135

QUESTION

FastLed Libary use the CRGB as attribute

Asked 2020-Apr-15 at 16:08

I'm working on a program for an addresable LED strip. It is working and at this point im trying to get my code better. I have 3 led strips and i made a function which all three has to do. In the function i want to specify which one needs to be updated so i used attributes. But this doenst seem to work. I cant find this on the FastLed documentation.

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ANSWER

Answered 2020-Apr-15 at 16:08

I think my question was a bit unclear sorry for that. I came up with another way of doing this. Instead of 1 led strip I check them all in the same function.

Source https://stackoverflow.com/questions/61211810

QUESTION

FastLED breathing effect with max brightness

Asked 2020-Apr-10 at 16:52

I have a problem. I am controlling my WS2812B using an Arduino, but I have a problem with the breathing effect. I created a class in the code that looks like this:

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ANSWER

Answered 2020-Apr-10 at 16:52

You could try using a breathing function, which is just a wave-type function such as a circular wave, triangular wave, or gaussian wave. Here's an example with a triangular wave (taken from my tutorial: Arduino Breathing LED Functions):

Source https://stackoverflow.com/questions/60834665

QUESTION

How can I combine these two for loop statements?

Asked 2020-Feb-19 at 13:32

Hi I'm using an Arduino to have a column of 4 leds streak across from left to right then back across on a 4x16 led panel. Currently I am using two for loop statements to make this happen but I'm wondering if there is way to combine the two loops or something so that left to right to left is all encompassed in one statement. Thanks.

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ANSWER

Answered 2020-Feb-19 at 13:32

I think a better algorithm approach for this requirement would be treating the led matrix as an array of 16 column then defining a function that takes column index and illuminates leds correspondent to that column , each led shall be defined as function of the variable columnIndex then looping over the 16 columns in the void loop .

Source https://stackoverflow.com/questions/60291476

QUESTION

Arduino for statement error. Expected ')' before ';' token. How to fix this?

Asked 2020-Feb-11 at 12:32

I am relatively new to Arduino and C++ and I am stuck on this error. I am trying to have LEDs streak across a matrix at the same time.

The error message I receive is

"exit status 1. expected ')' before ';' token"

Any help would be great.

...

ANSWER

Answered 2020-Feb-11 at 10:17

Your for loop doesn't work.

A for loop is: for ( initial; test; update )

You have all of those three parts twice with an "and" between them, that is invalid syntax.

for ((count1 = 0; count1 <= 15; count1++) and (count2 = 31; count2 >= 16; count2--)) { <- Invalid!

What you can do is this:

for (count1 = 0, count2 = 31; count1 <= 15 && count2 >= 16; count1++, count2--)

Source https://stackoverflow.com/questions/60166433

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Vulnerabilities

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