Re: [57north-discuss] Microcontroller for simulating a USB HID

2014-07-25 Thread David Lyon

On 2014-07-26 01:45, Calum Chisholm wrote:

Hmm... too few I/O pins if I have to do that - the nano only has 14
pins, and I need 13 for inputs. I suppose I could add a
shift-register, but it's all getting a bit hacky by that point.


Hi Calum,

Just wondering, why 13 inputs? What will this device be doing?

(Seems brilliant to have so many inputs)

Regards

David

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Re: [57north-discuss] Volunteer to take over doorbot and/or (possibly) hackhub?

2014-07-14 Thread David Lyon

Hi Robert,

On 2014-07-15 01:42, Robert McWilliam wrote:

In my ideal world, now I've made this decision, I'd just quietly start
ignoring you all - but I'd rather not just drop the space 
infrastructure

that I've been looking after.


Sometimes it can get that way.


So, I'm looking for volunteers to take
over responsibility for doorbot and, if Iain doesn't want to do it 
himself, hackhub.


Hackhub is a pretty simple python/Flask CRUD webapp so shouldn't be too
tricky to pick up for anyone that knows python and/or web development.


I had a look at this and it looks well written. Just to share my story I 
was a computer programmer from the Z80 days when tinkering with the 
hardware wasn't really doable. Cut 20 or so years and after getting 
involved in my local hackerspace I was doing all sorts of things I never 
knew about before.


These are some of my blog/photo posts: 
https://plus.google.com/u/0/+DavidLyon/posts



doorbot involves a wider range of tech (but each bit is pretty simple):
electronic stuff to control the strike plate, an arduino to interface
that to the PC, and then another python/Flask webapp to provide the
interface to trigger opening the door from hackhub.
The code side of doorbot is at https://github.com/ormiret/doorbot
And a sketch of the circuitry plus some explanation of how it works:
https://57north.co/wiki/Doorbot

I'm happy to go over any of the details with anyone who's willing to
take either of these on.


Looks pretty good.

Globally (I'm told) lots are chasing the Internet-of-Things type 
solutions. I've been doing a similar thing for the Attiny85 which is 
smaller and cheaper.


Regards

David


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