Espruino | Espruino by Examples - Espruino is a JavaScript interpreter | Interpreter library

 by   anars JavaScript Version: Current License: GPL-3.0

kandi X-RAY | Espruino Summary

kandi X-RAY | Espruino Summary

Espruino is a JavaScript library typically used in Utilities, Interpreter applications. Espruino has no bugs, it has a Strong Copyleft License and it has low support. However Espruino has 10 vulnerabilities. You can download it from GitHub.

Espruino by Examples - Espruino is a JavaScript interpreter for microcontrollers.
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            kandi-support Support

              Espruino has a low active ecosystem.
              It has 18 star(s) with 3 fork(s). There are 8 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              Espruino has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of Espruino is current.

            kandi-Quality Quality

              Espruino has 0 bugs and 0 code smells.

            kandi-Security Security

              OutlinedDot
              Espruino has 10 vulnerability issues reported (0 critical, 4 high, 6 medium, 0 low).
              Espruino code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              Espruino is licensed under the GPL-3.0 License. This license is Strong Copyleft.
              Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

            kandi-Reuse Reuse

              Espruino releases are not available. You will need to build from source code and install.
              Espruino saves you 207 person hours of effort in developing the same functionality from scratch.
              It has 508 lines of code, 0 functions and 43 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Espruino
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            Espruino Key Features

            No Key Features are available at this moment for Espruino.

            Espruino Examples and Code Snippets

            No Code Snippets are available at this moment for Espruino.

            Community Discussions

            QUESTION

            Cannot POST with ESP8266 (espruino)
            Asked 2019-Sep-23 at 08:50

            I cannot make post request (get works fine) with espruino. I've already checked the documentation and it seems pretty equal here is my code:

            ...

            ANSWER

            Answered 2019-Sep-21 at 17:59

            you're using a package called "http" and then trying to send a request over https. You should also log out 'data' in the res.close so you can get some errors to work with.

            Source https://stackoverflow.com/questions/58033696

            QUESTION

            Static bundling from a remote url in webpack
            Asked 2019-Feb-28 at 02:46

            This seems like a really simple question and have searched for an answer, but all the answers are about dynamically loading a remote url.

            I have a need to bundle libraries that are published as raw (non-NPM) source in Github. I would like webpack to download and include these files in my bundle. Caching the file locally for a period of time would be a bonus.

            For example, I would like to be able to write:

            ...

            ANSWER

            Answered 2018-Feb-23 at 23:14

            The webpack-require-http plugin should meet your needs.

            Or try scriptjs:

            Source https://stackoverflow.com/questions/48955180

            QUESTION

            Espruino save code and start on initialization
            Asked 2017-Dec-18 at 09:28

            I have making a cool project. I have more or less finalized my code, which will go on a NodeMCU running Espruino. I have trouble to save this code on the Espruino. This code should do this on each boot: connect to wifi, declare all functions and variables. Then the read() function should be run continuously.

            As I see from https://www.espruino.com/Saving I have two options. I tried both.

            • If I put save() at the end of the code, after I restart NodeMCU code continues to run from where it stopped, but this mean that NodeMCU is not connected to wifi.
            • If I put E.setBootCode(init()); at the end of code and restart the NodeMCU code doesn't run anymore.

            Does anybody know how to properly save code on Espruino so it connects to wifi and defines functions and variables each time it is powered on?

            My code:

            ...

            ANSWER

            Answered 2017-Dec-18 at 09:28

            Your best solution is to rename your init function to onInit, and then type save() after upload and it'll magically start working.

            The page you found https://www.espruino.com/Saving mentions about onInit automatically getting called at boot.

            What you're doing with E.setBootCode(init()); won't work, because it's executing a string. What you're doing is executing the init() function and then putting the return value of that function into setBootCode .

            You'd need E.setBootCode("init();"); - but in this case you should really just do the first option - using onInit

            Source https://stackoverflow.com/questions/47855000

            QUESTION

            Turn on specific LED using NeoPixel module for Espruino?
            Asked 2017-Dec-04 at 09:00

            I am trying to turn on a specific LED using the NeoPixel module. How it works is really easy: Parse it a 2D array of RGB colors. Here's an example:

            ...

            ANSWER

            Answered 2017-Dec-04 at 09:00

            Yes, totally - it's worth looking at the neopixel docs at http://www.espruino.com/WS2811 as they suggest you use an array to store the current state.

            Once you have that array - called arr here - you can use the .set method to set the 3 elements at the right position (3x the number, because RGB), and then can resend the whole array.

            Source https://stackoverflow.com/questions/47625511

            QUESTION

            Do I have to buy Raspberry Pi Device?
            Asked 2017-Nov-24 at 08:38

            I starts learning IOT and watching introduction videos. I see there are two famous devices for IOT are, Espruino and Raspberry Pi.

            I installed Espruino as web IDE, but during publish it is asking me plug in. Some videos recommends me to buy Raspberry Pi device also.

            Question is, Do I have to buy device, or we have some tool available, which I can use for learning purpose?

            Thanks.

            ...

            ANSWER

            Answered 2017-Nov-24 at 08:38

            If you have Windows with 'Ubuntu on Windows' (or are running Linux) then you can create your own build of Espruino from http://github.com/espruino/Espruino, which you can run on your PC (and communicate with from the IDE via Telnet). All the internet functionality will work, however obviously you won't be able to access anything in the real world.

            You can buy official Espruino boards pretty cheaply ($25), or you can run the Espruino software on an ESP8266 (which costs around $5 for a USB connected board) - it'll just be a little less plug and play, and isn't officially supported by the creators.

            Raspberry Pis are also very cheap ($10 for the Zero W with internet connectivity), but you'll have to factor in the cost of an SD card too.

            If you really don't want a physical device, you can actually rent Raspberry Pis (eg. https://raspberry-hosting.com/en) or as Sudheesh mentioned in response to your post there are emulators as well.

            However given the time you're likely to spend learning to use IoT devices, spending a few dollars buying hardware to use would be a very good investment.

            Source https://stackoverflow.com/questions/47466247

            QUESTION

            Unable to save code Espruino NodeMCU
            Asked 2017-Jul-24 at 14:01

            I had been working with Espruino for a bit and it is really a wonderful project. But, I am facing an issue for saving the code onto the flash, so that it can still be run when power is supplied to the board(NodeMCU), instead of the PC COM port. The code works completely fine until it is passed from the terminal. But, if I switch over the power supply it stops working. Also, I tried the save() and E.on('init',function(){}) but to no avail. It still doesn't create a web server. If someone could help out here it could be great! Thanks!

            ...

            ANSWER

            Answered 2017-Jul-04 at 19:15

            After fiddling around with the documentation and crawling the scrambled web for almost a whole day I found out a solution myself. The issue ->

            Source https://stackoverflow.com/questions/44911212

            QUESTION

            HTTP POST in Espruino for Microcontrollers
            Asked 2017-Jun-26 at 15:48

            I recently got myself an esp8266-12e module and loaded the ESPRUINO.js firmware on it. I am trying execute a post request from the device, but the device always returns a 'no connection' error when trying to POST.

            To troubleshoot I have ran a GET request to the same URL, and the request was successful, this means that internet is working on the device and communication with the intended server is possible.

            I then moved on to see if there were errors in my HTTP POST code, I ran the same code in a node.js app and it successfully posted to the server.

            Here is the code below, I removed the exact address of my server and my wifi/pass info.

            ...

            ANSWER

            Answered 2017-Jun-26 at 15:48

            Turns out the http post request requires the 'content-length' header to function correctly.

            Here is the working post request model for anyone who may need it. Note: Payload has already been formatted as a JSON object.

            Source https://stackoverflow.com/questions/44677095

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            Espruino before 1.99 allows attackers to cause a denial of service (application crash) and potential Information Disclosure with a user crafted input file via a Buffer Overflow during syntax parsing because strncpy is misused in jslex.c.
            Espruino before 1.99 allows attackers to cause a denial of service (application crash) with a user crafted input file via a Buffer Overflow during syntax parsing because of a missing check for stack exhaustion with many '{' characters in jsparse.c.
            There is a stack-based buffer over-read in the jsfNameFromString function of jsflash.c in Espruino 2V00, leading to a denial of service or possibly unspecified other impact via a crafted js file.
            Espruino before 1.99 allows attackers to cause a denial of service (application crash) and a potential Information Disclosure with user crafted input files via a Buffer Overflow or Out-of-bounds Read during syntax parsing of certain for loops in jsparse.c.
            Espruino before 1.99 allows attackers to cause a denial of service (application crash) with a user crafted input file via a Buffer Overflow during syntax parsing because a check for '\0' is made for the wrong array element in jsvar.c.
            Espruino before 1.99 allows attackers to cause a denial of service (application crash) with a user crafted input file via a Buffer Overflow during syntax parsing of "VOID" tokens in jsparse.c.
            Espruino before 1.99 allows attackers to cause a denial of service (application crash) and a potential Escalation of Privileges with a user crafted input file via a Buffer Overflow during syntax parsing, because strncat is misused.
            Espruino before 1.98 allows attackers to cause a denial of service (application crash) with a user crafted input file via an Out-of-bounds Read during syntax parsing in which certain height validation is missing in libs/graphics/jswrap_graphics.c.
            Espruino before 1.98 allows attackers to cause a denial of service (application crash) with a user crafted input file via a NULL pointer dereference during syntax parsing. This was addressed by adding validation for a debug trace print statement in jsvar.c.
            Espruino before 1.99 allows attackers to cause a denial of service (application crash) with a user crafted input file via an integer overflow during syntax parsing. This was addressed by fixing stack size detection on Linux in jsutils.c.

            Install Espruino

            You can download it from GitHub.

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            Fork it.Create a branch (git checkout -b myEspruino)Commit your changes (git commit -am "Added New Espruino Sample")Push to the branch (git push origin myEspruino)Create an issue with a link to your branch
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