I need to come up with a way to daisy chain a number of sensors together and uniquely read the high/low pin from them individually. Think Digital RGB LED http://www.adafruit.com/products/306 or I2C. I like how when you power the LED strip up, it assigns a unique id. Is there already a module that will do this?
Hello Alex,
To accomplish what you want, you'd need something that is daisychained, or at least have a chain of devices where the first in the chain can 'disable' all others. I2C , without modifications or other circuitry, won't be able to do what you want. As it is a bus-topology, all devices are being 'talked to' at the same time, and all devices with the same address will respond simultaneously, thus causing bus collisions.
You'd either need a device with an 'ingoing' and 'outgoing' bus, or something that disables all other devices until it is being addressed. In both cases you could do this with a simple microcontroller. Which is of course the kind of work you're not waiting for 
Hello Alex,
To accomplish what you want, you'd need something that is daisychained, or at least have a chain of devices where the first in the chain can 'disable' all others. I2C , without modifications or other circuitry, won't be able to do what you want. As it is a bus-topology, all devices are being 'talked to' at the same time, and all devices with the same address will respond simultaneously, thus causing bus collisions.
You'd either need a device with an 'ingoing' and 'outgoing' bus, or something that disables all other devices until it is being addressed. In both cases you could do this with a simple microcontroller. Which is of course the kind of work you're not waiting for
