DIY Stompboxes => Digital & DSP => Topic started by: JimRayden on August 18, 2010, 02:55:58 PM

Title: I2C device addresses
Post by: JimRayden on August 18, 2010, 02:55:58 PM
Hi all.

I am trying to set up a system by the means of a I2C bus. One of the devices is an Atmel touch sensor controller ( (, which has two I2C address pins, thus allowing configuring for 4 device addresses.

I need to connect up more than 4 of these devices to the host. I am guessing some digital trickery will be necessary. I'd like to solve it with as little extra clutter as possible. An extra control line from the host hooked up to a demux is perhaps a possibility but that would destroy the idealistic world of simplistic serial communication, especially if I have over a hundred device addresses completely unused. :)