i2c slave address limitation and multiple i2c?

glmclell said:

I want to control some I2C devices using a PIC, however, the I2C devices I've selected support a maxium of 4 such devices on an i2c bus (4 slave addresses).

so, can I get around this by using more pins on the PIC, to create multiple I2C buses?

for example, PORTC with 8 I/O lines ... can I use 0 & 1 for the first smbus, 2 & 3 for the second smbus, 4 & 5 for the third and 6 & 7 for the fourth?

Click to expand...

Nigel Goodwin said:

...you don't need to use two new wires for each bus, you could simply use a common data line for all the buses, and a seperate clock line for each bus.

Click to expand...