Porting Arduino Libraries?

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  • How would you go about porting a library from Arduino to an Espruino module??

  • It depends on what it is - if it's SPI or I2C the commands are pretty similar, so all you're really doing is changing C to JavaScript. If it's moving pins up and down you need to give it a bit more thought because ideally you want to be using setWatch to respond to events on pins.

    A good start would be looking at the existing modules in: https://github.com/espruino/EspruinoDocs­/tree/master/devices

    In terms of development, what I tend to do is something like this in the right of the web terminal:

    var exports = {};
    
    exports.connect = function(pina, pinb, pinc) {
     ...
    }
    
    var foo = exports.connect(A1,A2,A4);
    foo...
    

    And then I get everything working as I want, and when I'm done I copy the exports.connect bit into a JavaScript file. After that, you can put the JS file on a webserver (even if it's on your local PC) and access it via URL:

    require("http://www.espruino.com/modules­/DS18B20.js").connect(...)
    

    Note that you have to have the webserver set up to serve up the file with the Access-Control-Allow-Origin "*" header so that JavaScript can access it correctly :(

    And when that works, you could add it to https://github.com/espruino/EspruinoDocs­/tree/master/devices and issue me a pull request :)

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Porting Arduino Libraries?

Posted by Avatar for StuntMonkeh @StuntMonkeh

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