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Topic: using checksum for data integrity (Read 659 times) previous topic - next topic

fbriggs4

I have some data that I am sending over a GPRS connection to a server. Data integrity is very important so I am looking to find out what people are typically using as a checksum in Arduino? I found an MD5 library but even the basic example sketch is 14KB. I am using an UNO so that is just to large for me to use. Any suggestions on how to verify data integrity is appreciated.

AWOL

"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

terryking228

How's this CRC solution?? http://excamera.com/sphinx/article-crc.html
Regards, Terry King terry@yourduino.com  - Check great prices, devices and Arduino-related boards at http://YourDuino.com
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KeithRB

Do you need error correction, or will you re-send?

http://en.wikipedia.org/wiki/Error-correcting_code

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