I2c 1master - 3slaves

Thread Starter

aamirali

Joined Feb 2, 2012
412
1. I have made code for 1 master & 1 slave on I2c for MSP430G2553.
Working fine with 4.7K pull up & 3.3V.

2. Now I want to have 1 master & 3 slaves on same bus for 3.3V.
Is there anything extra I have to do. Or same slave code will for all except each one's address.

Do pull-up's need to be changed.
 

ErnieM

Joined Apr 24, 2011
8,377
That is the beauty of I2C. As long as the slaves all have different addresses and are not too far away (it adds capacitance) then you can keep adding them.

The practicable limit where you have to think about adding buffers is pretty large.
 
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