Micro SD

[frankilische]

Please i am trying to see if i could save data from a sensor network into a MICRO-SD card. i am actually using the picaxe connnect (AXE210) board and would need suggestions on how to get this done. basically i am trying to see if i could rule out the use of a computer connected to the coordinatior node and i hence assume that the coordinator which receives data from the other terminal nodes does not need the MAX 3232 chip but rather a picaxe chip since there is no computer connected to it. I hope i am right on that. Any suggestions on how to get this done would be appreciated. The big picture is having a sensor network with its coordinator node connected to a Micro-sd card where it can save data to be used later on instead of having a computer on all the time.

 

[MFB]

The simplest approach that I have found is to send serial data to an OpenLog SD interface board( http://www.sparkfun.com/products/9530 ). This board just accepts any serial data thrown at it and stores it in a PC compatible format. Just remove the SD card and plug it into a PC slot, then use notepad to read and export the data to Excel. At about £15 for this board its really not worth trying to develop your own interface code. Unless you plan on producing large numbers of your loggers.

 

[frankilische]

The simplest approach that I have found is to send serial data to an OpenLog SD interface board( http://www.sparkfun.com/products/9530 ). This board just accepts any serial data thrown at it and stores it in a PC compatible format. Just remove the SD card and plug it into a PC slot, then use notepad to read and export the data to Excel. At about £15 for this board its really not worth trying to develop your own interface code. Unless you plan on producing large numbers of your loggers.

Thanks for the response, I would love to try that out, since it astores serial data in PC compatible format. I was just looking through the Open Log SD interface board from the link you provided and was just trying to figure out a way to connect both boards. I mean the AXE 210 board and the OpenLog board. I guess the both grounds from both boards and the respective output pin from my software program would be connected to the RXI pin on the Open log board. Am i right on that?

Thanks once again for the response

 

[MFB]

The connects are as follows: OpenLog PICAXE
1&2 ground
3 +supply
4 serial in
5 serial out
6 +supply

Hope the formatting of the post stays much the same.

 

[MFB]

The formatting did get screwed up! What you see above is the ProLog pins on the left and the PICAXE connections on the right.