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From: Niclas Hedhman <niclas@hedhman.org>
Date: Mon, 15 Feb 2016 00:52:26 +0800
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Subject: Re: Update from Niclas
To: dev <dev@zest.apache.org>
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Forgot to answer the ESP8266 aspect... If you don't know the ESP8266, it is
an amazing microcontroller; 32bit, ADC and WiFi built-in, incl the TCP/IP
stack (LWIP v4 anf v6). And it cost about $1. You can get a complete module
with 4MB Flash for $1.90.

I have worked a lot in building automation, that means the climate control
systems in larger buildings (and not DIY home owners and makers). Indoor
temperature sensors are extremely expensive (think $1000) to install after
the building is up and running. So, I am simply offering a $15 device,
which is powered by USB (Mains-to-USB adapters are plentiful), so it can be
quickly installed (think 10mins, incl config) where ever there is a mains
plug.


But that is, as you realize, only the beginning. It will all come down to
the data and what to do with it. And that is where the bulk of the work is,
but also where the differentiation from Chinese shops, which will
eventually sell anything successful at "cost+5%" or less.

Cheers
Niclas

On Mon, Feb 15, 2016 at 12:35 AM, Niclas Hedhman <niclas@hedhman.org> wrote:

>
> Yes, it is all about IoT.
>
> About Ethereum; Have you gotten a good insight in this? I know what a
> blockchain is, but assuming a million sensor generating 12 values per hour,
> we are talking GBs per hour of data added... And 1 million is hopefully on
> the low end.
>
> I would love to hear more about it...
>
> Cheers
> Niclas
>
>
> On Sun, Feb 14, 2016 at 11:55 PM, Jiri Jetmar <juergen.jetmar@gmail.com>
> wrote:
>
>> Hi Niclas,
>>
>> so you are hacking now on hardware ? Interesting.. Just curious - what is
>> that unique on a ESP8266
>> based temperature sensor ? Does it go to the direction of IoT ?
>> Independently of that - if you need some, I can surely help you. And to
>> "burn" a new firmware should not
>> be a big problem.. :-)
>>
>> An idea on this topic. You mentioned you are building the backoffice for
>> the sensor as well. What about
>> to pipe the sensor data to a blockchain ? Means to build a smart contract
>> and let the sensor write the data
>> directly to such a contract  :
>>
>> contract SimpleStorage {
>>     uint storedData;
>>
>>     function set(uint x) {
>>         storedData = x;
>>     }
>>     function get() constant returns (uint retVal) {
>>         return storedData;
>>     }
>> }
>>
>> This is a solidity ethereum.org contract to simply store data. One can
>> extend the concept and charge some little money
>> from those parties who wants to "get()" some data and hence the sensor can
>> pay for him self.
>>
>> Cheers,
>> Jiri
>>
>>
>>
>>
>> 2016-02-13 4:58 GMT+01:00 Niclas Hedhman <niclas@hedhman.org>:
>>
>> > Gang,
>> >
>> > I haven't had much time on Zest lately, as I have been busy creating a
>> > low-costWiFi capable, USB-powered temperature sensor. See
>> > http://hedhman.org/~niclas/IndoorioD.jpg
>> >
>> > And for the fun of it, I ported FORTH programming language to the
>> ESP8266
>> > CPU that is on this, in Assembler of course. Interpreter, Compiler, base
>> > vocabulary (functions) and REPL in ~1000 assembler instructions, and the
>> > full vocabulary in another 10kbytes or so. It has been a lot of fun.
>> >
>> > This little puppy will go for one more round of prototypes next week,
>> as I
>> > want to add an external watchdog and tiny prototyping area for maker
>> > community. Then I intend to make a field test with 100 units or so.
>> >
>> > So, why am I telling you all this?
>> >
>> > First of all, these guys will report the temperature back to a central
>> > server every 15 minutes or so. And the management system on the server
>> is
>> > written with Zest. The rest is with Grafana and ElasticSearch. I am
>> > considering trying to build a business around data capture, aggregation,
>> > analytics and visualization. Anyone interested to join?
>> >
>> > Secondly, I am looking for volunteers for my field test. It will
>> probably
>> > happen in April or so. If you participate, you will receive a USB
>> powered
>> > sensor as seen. Plug it into power somewhere for 6 months, connect to it
>> > over WiFi, configure it to use your WiFi router over a simple web
>> > interface, and keep it powered for 6 months.
>> > If there are problems, I might ask for reboot. Hopefully not any
>> firmware
>> > upgrades.
>> >
>> > Let me know if you are interested in this.
>> >
>> >
>> > So, as the device design and software is soon coming to a good state, I
>> > will return my focus on the central server, which means that I will get
>> > back to Zest development shortly. It has been far too quite recently.
>> >
>> >
>> > Cheers
>> > --
>> > Niclas Hedhman, Software Developer
>> > http://zest.apache.org - New Energy for Java
>> >
>>
>
>
>
> --
> Niclas Hedhman, Software Developer
> http://zest.apache.org - New Energy for Java
>


-- 
Niclas Hedhman, Software Developer
http://zest.apache.org - New Energy for Java

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