RTC and External Media

O

OMGitsRhys

New Member
Using an RTC and some form of external media card...
Is it possible to record information such as triggered times onto the card?
e.g:


log.txt:

#01 - 02/11/09-11:20
#02 - 03/11/09-12:50
#03 - 07/11/09-09:25
#04 - 21/12/09-05:10
#05 - 28/12/09-10:21


The times and dates being when lets say Pin0 was high...
 
B

BeanieBots

Moderator
Depends what and how much data you want to store.
Using the DS1307 + EEPROM would be a very easy way of producing a data logger with data timestamp.
 
S

saunj

Senior Member
Recording on a flash card

OMGitsRhys said:
Using an RTC and some form of external media card...
Is it possible to record information such as triggered times onto the card?
e.g:


log.txt:

#01 - 02/11/09-11:20
#02 - 03/11/09-12:50
#03 - 07/11/09-09:25
#04 - 21/12/09-05:10
#05 - 28/12/09-10:21


The times and dates being when lets say Pin0 was high...
Click to expand...
I have been doing this for a couple of years now on a data logger using serial-input modules from Rogue Robotics in Canada. It uses a 500Mb Secure Digital camera card. I don't need 500Mb, but what the heck, it's cheap. Here is the circuit diagram reference, which has a link to Rogue Robotics' web site:
http://projects.worsleyassociates.com/SDWriter/SDWriterCircuit.htm?

There are a few things I've learnt about its timing. Mostly I have just waited long enough to assume the command worked, and sent another prompt using a Picaxe, but I have done it full-duplex using a Parallax Stamp.
 
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