- Sat Feb 12, 2011 5:25 am
#120065
I have an issue I do not know how to resolve. Suppose you have two Arduino shields that you wish to use on one stack. If both shields contain an I2C device, but one board's device is 5V and the other board's device is 3V3, how do I resolve attaching the I2C devices to the Arduino's I2C ports? I assume that one needs to convert the 3V3 levels to 5V. There is also the issue of the pull-ups on the SDA and SCL lines. Does each board have it's own pull-ups?
Any enlightenment will be appreciated!
Vic
Vic Fraenckel
KC2GUI
windswaytoo ATSIGN gmail DOT com
Any enlightenment will be appreciated!
Vic
Vic Fraenckel
KC2GUI
windswaytoo ATSIGN gmail DOT com
Victor Fraenckel
windswaytoo ATSIGN gmail DOT com
KC2GUI
windswaytoo ATSIGN gmail DOT com
KC2GUI