I2c possibilities

[FooFee]

A liitle update about that:

Up to 4 x sweet 16 / 16n (if in follower mode and each got its own address (I will provide updated 16n firmwares to use a different address)) are possible per I2C Port on the NerdSEQ. So a setup like 2x er301 and 4x 16n is definitely possible!!!

I have a 16n and sweet16 followers but I can't figure out how to change the adress of one of them to use them both with port A and port B. Could you tell me how to do that, and if it's the only thing I have to do, or if it's something else, please? Maybe something in the settings (well I will change one adress in the settings of the nerdseq after that)

Hey, 

the thing is that you need a firmware which is set to a different address. Depending on which 16n you got you can probably do that in their online tool. I understand that they are different hardware versions so there is no generic file that would work for all. 

If you only got these 2 units and nothing else on the I2C bus, then you can connect one to one port and then 16N->NS 1-16 and the other one on the other port to 16N-NS 17-32. 
Both should work then while one generates faders 1-16 and the other one 17-32.

Hello,
thanks for your answer. So i have a atov 16n faderbank (waiting for their answer if i can change the adress with their help because i couldt find how to do it on the web editor), and a sweetsixteen mk2 by tesseract.
Actually the solution you propose doesn't seem to fit my needs, or maybe I didn't understand something. 
I want to be able to control, let's say for instance the ADSR parameters of env#1 of the nerdseq. So far, I could do it with this setting : midi/i2C setup > i2C A mode : NS ->16N 1-16. I thought there would be something like i2C B mode : NS ->16N 17-32 but there isn't. 
So I guess with the setting i2C A mode : NS -> 2X 16N 1-32 could work, but I don't know how to do to connect the 2 i2c controllers to only A port.
Do I have to chain them somehow?
And I also tried the settings you mentioned, but then, the multi IO doesn't receive the signal anymore from the faders (no light blinking on the multi IO expander)