1. Can the express be used on an existing DMX network?
yes
1a. How would one make a 3 pin DMX -> CAT5 adaptor?
You are not allowed to view links.
Register or
Login2. Do the Pics need to be "flashed" as I have read elsewhere or do they come pre-programmed?
only the dongle pic needs to be user flashed, or ask someone to program it for you.
You are not allowed to view links.
Register or
Login3. How would the coop work if Mouser should be backordered on certain parts?
the coop manager would try and source parts from other vendors
4. Can the kit be assembled as it comes, and wireless added at a later date? Or does that need to be decided up front?
yes