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From: Edward Capriolo <edlinuxguru@gmail.com>
Date: Tue, 31 Jan 2017 13:44:28 -0500
Message-ID: <CAENxBwzH2_ACLJwGCpsj0EKcP33aH1DKpg5NzT1QTW_wtPoxyQ@mail.gmail.com>
Subject: Re: [DISCUSS] new incubator project Apache IOT
To: general@incubator.apache.org, davidb@apache.org
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archived-at: Tue, 31 Jan 2017 18:44:34 -0000

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On Tue, Jan 31, 2017 at 11:40 AM, <davidb@apache.org> wrote:

> Hi all,
>
> Sounds quite interesting :) It might also be an idea to provide a home for
> implementations of other hardware that can drive GPIO pins and can control
> similar sensors and other devices. I'm thinking of an Arduino, or something
> like an ESP8266. These are devices that are much simpler (and cheaper) than
> a Raspberry Pi, but if you are just building a sensor or a simple switch
> they are often quite useful.
>
> Would that fit with a project like this as well?
>
> Cheers,
>
> David
>

David,

It is my understanding that what this project would produce would be device
independent.

In Unix operating systems devices are files. For the I2C bus the device id
would /dev/i2c-0.(I do not believe this would be different on a PI vs and
Arduino). My goal is to produce Apache licensed libraries like this here:

https://blogs.oracle.com/acaicedo/resource/RPi-HOL/GPIOTest.java

Namely:

    final GpioController gpio = GpioFactory.getInstance();
    final GpioPinDigitalOutput led1 =
gpio.provisionDigitalOutputPin(RaspiPin.GPIO_00);

        // continuously blink the led every 1/2 second for 15 seconds
    led1.blink(500, 15000);

However, if people are open to device driver implementations (I would
assume these would be BSD drivers) I think that is an interesting
direction and I know of some FreeBSD user groups that might be
interested in getting involved.

Thanks,

Edward

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