[tech] Door lock

Andrew Adamson bob at ucc.gu.uwa.edu.au
Wed Mar 7 21:51:48 WST 2012


*sigh*

So I got back from the pub and went to close the clubroom, and guess what 
wasn't working? I've turned the modem off, since it is obviously the 
problem and was causing the lock to heat up. I bought a little 5V relay 
board at altronics today [1], which could be combined with the Seeeduino 
in the machine room to replace the modem system. Unfortunately I won't be 
at uni for the next two days, so if someone wants to work on that, just 
let us know on the list.

[1] http://www.altronics.com.au/index.asp?area=item&id=S4440

Andrew Adamson
UCC President
bob at ucc.asn.au

|"The faster you move, the slower time passes, the longer you live."     |
| ---Peter's Laws                                                        |

On Wed, 7 Mar 2012, Andrew Adamson wrote:

> The door is now back online. The in-wall wiring has been redone, and the 
> power supply has been replaced with something smaller now that we need 
> less current. We are still using the modem, so if the system breaks in the 
> next couple of days we know exactly what is wrong.
> 
> Please note: you no longer need to bang/kick on the door to open or close 
> it.
> 
> Andrew Adamson
> UCC President
> bob at ucc.asn.au
> 
> |"The faster you move, the slower time passes, the longer you live."     |
> | ---Peter's Laws                                                        |
> 
> On Tue, 6 Mar 2012, Andrew Adamson wrote:
> 
> > Hi all,
> > 
> > I spent some time today replacing our old electronic lock with a newish 
> > one which has been sitting in the tool cupboard for a couple of years. 
> > It's not wired up as yet so you will still need to use the key for now. In 
> > the next day or so I plan to redo the wiring back to the machine room, at 
> > which point the door modem may or may not get replaced with an arduino or 
> > analogue circuit. There is no longer any need to slam the door to make it 
> > close, and the lock even closes itself now. Enjoy! :-)
> > 
> > Andrew Adamson
> > UCC President
> > bob at ucc.asn.au
> > 
> > |"The faster you move, the slower time passes, the longer you live."     |
> > | ---Peter's Laws                                                        |
> > 
> 


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