I've been playing with using the Wire library to connect two Arduinos. It appears that the transfer rate is a dismal 1 KB/sec. I see from the I2C spec( http://www.nxp.com/acrobat_download2/literature/9398/39340011.pdf ), there is a "high-speed" mode which offers 3.4 Mb/sec ~ 500KB/sec. Using a standa…

I2C transfer rates using Wire library.

system April 10, 2011, 3:45am 3

Just change TWBR manually, see the ATmega328P datasheet

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