Jan 18, 2007 #1 S smartshashi Member level 4 Joined Aug 11, 2004 Messages 68 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 513 i m working on scada with AVR microcontroller. i m going for one master & two slave. which should i prefer for communication I2C or SPI. slave may increased in future.
i m working on scada with AVR microcontroller. i m going for one master & two slave. which should i prefer for communication I2C or SPI. slave may increased in future.
Mar 3, 2007 #2 U umup Member level 5 Joined Aug 4, 2006 Messages 84 Helped 13 Reputation 26 Reaction score 5 Trophy points 1,288 Activity points 1,692 I2C or RS485 for long distances