[hackpgh-discuss] Re: RFID timeclock

  • From: Anthony Cascone <ajc317@xxxxxxxxx>
  • To: "hackpgh-discuss@xxxxxxxxxxxxx" <hackpgh-discuss@xxxxxxxxxxxxx>
  • Date: Tue, 3 Mar 2015 14:03:18 -0500

I'm not aware of any projects that currently exist that you could just copy
and past, but I'll be honest, I didn't bother searching at all. I'll leave
that to you.

In its most basic form, you'll need an RFID reader, tags, and some sort of
computer. Depending on how you want it set up, you could use your own
computer, or get a dedicated system. A RaspberryPi would be more than
sufficient if you want a dedicated, low power, portable system. Regardless,
of the computer, for ease of integration, I would recommend a USB enabled
RFID reader. That can be fairly cheap if only need it to operate indoors.
Parallax has one I think. If you needed it our doors, you'll have to pay
more or you a mixture of parts to get it to play nice with a computer.

Once you have the reader, you'll need something to listen to the reader on
the computer, and then log the time/date that the tag was read. From there,
it's up to you on how the data is displayed.

I have a feeling that such a project might already exist, but it shouldn't
be too hard to whip something up.

On Fri, Feb 27, 2015 at 5:37 PM, Chris Williams <cwilliams2@xxxxxxxxx>
wrote:

> Please forgive my lack of clarity.
>
> Anthony's explanation most accurately described the goal. The RFID tag
> will be the timecard for the timeclock. The tag will initiate when a person
> has clocked in and out. In addition, I want to create a log with timestamps.
>
> -Chris
>
>
>
> On Friday, February 27, 2015, Anthony Cascone <ajc317@xxxxxxxxx> wrote:
>
>> While we are playing the guessing game. I suspect he means a time
>> tracking system using RFID tags to "punch in" and out.
>>
>> A device that generated tag IDs that corresponded to the current time
>> would be an interesting project though.
>>
>> Regardless, additional details would help to understand the scope.
>>
>> On Fri, Feb 27, 2015 at 10:07 AM, Yevgeniy Soroka <ukranians2@xxxxxxxxx>
>> wrote:
>>
>>> I suspect he means an RFID chip which transmits the time when you scan
>>> it?
>>> -Geno
>>>
>>> On Fri, Feb 27, 2015 at 10:00 AM, Tim Cannon <timmycninja@xxxxxxxxx>
>>> wrote:
>>>
>>>> start by explaining what you mean, RFID is usually passive and simply
>>>> transmits an ID over low frequency radio.
>>>>
>>>> On Fri, Feb 27, 2015 at 9:33 AM Chris Williams <cwilliams2@xxxxxxxxx>
>>>> wrote:
>>>>
>>>>> Dear Hack Pittsburgh,
>>>>>
>>>>> I am interested in learning how to develop an RFID timeclock. Chad
>>>>> suggested that I ask the group.
>>>>>
>>>>> Where is a good place to start?
>>>>>
>>>>> Thanks!
>>>>>
>>>>> -Chris
>>>>>
>>>>>
>>>>>
>>>
>>

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