I need advice...

CannibalRobotics

I need to track a couple of hundred data points (words) in what us old school guys would refer to as a "circular buffer".
I'm going to pull the trigger on either an SD memory or the USB data logger today.
Which is easiest to use with a prop?
Which takes up less prop memory to implement?
Which is the fastest?

Thanks ahead of time.
Jim-
·

Ale

SDCard.

But, if you can go with a i2c fram/eeprom/flash (can be SPI) ... go for it, it will be simpler unless you need that a pc read/writes the data. In such a case you can always implement a PC interface via serial port.

tpw_man

I think the SD card is both fast and simple to use, but the USB datalogger uses a LOT less memory, due to its serial interface. On the prop, the prop code is handling interfacing with the SD card and the filesystem. The USB datalogger might be simple to use, but I have not used it.

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