Multimodule install questions

I have a Devo 10 and plan on adding an MM board with a nrf24l01 chip for now and the other two later. I've read many many post but I still have some questions.

I'm confused about the stock Devo cyrf6936 , some places I see to remove it and possibly put it on the MM board, other places I see it stay in the stock location. Is this optional or something? Can someone please explain?

Also I bought the ATtiny84A chip and I saw something about it not being the 24 chip and changing t24 to t84. What does that mean? Any setup I need to be aware of for the different chips? I ordered the 1.3 version card and intend to program it via the TX. Any special dfu file for the 84 version?

Sorry if this has been answered already.

The MM board is made for a couple different Tx's, some of which do not have a CYRF transceiver. So then a CYRF can be added to the MM board. Since the DEVO line of Tx's already have a CYRF in them, you don't put one on the MM.

If I recall correctly, when using the DEVO 10 to flash the ATtiny, you don't need to worry about that edit from 24 to 84. I think that only applies when using a USBasp to do the flash of the ATtiny.

Here's my experience on the MM build, not a real how-to or tutorial, but has some tips and ideas.

>>> www.rcgroups.com/forums/showthread.php?t=2441459 <<<

Thanks for the quick reply. I understand now. That makes sense.