Hi!

I2C is a serial communications format. It uses 2 wires, one for clock
and one for data. Devices on the bus have specific addresses to
identify them and make them individually addressable. I2C uses less
port pins then SPI (or 3-wire bus), especially when using several
slave devices connected to the bus. There are no chip select lines
needed for the individual devices. I found a short explanation and
code for I2C in Microchip Appnote AN515 "Communicating with the I2C
Bus Using the PIC16C5X".

I am just working on making the Dallas DS1621 temperature sensor and
DS1307 RTC work with a PIC and an LCD display.

Hope this makes sense...

Regards,
Adi


> PIC's:
>
> Please, What is the I2C bus?
>
> Thanks
>
> Solon Caceres Moreno
> Ingeniero de Sistemas UIS
> Bucaramanga, Colombia
> e-mail: solca@usa.net
>               cdmb@multinet.com.co
>