You're currently asking for money to be able to do something which is illegal. I'd consider that "making a profit". You may not be selling it directly, but crowd funding is a type of sale.
"...An objective of this exception is to make it possible to connect all components of a computer system, including those of different manufacturers, so that they can work together."
And the US:
Sec. 103(f) of the DMCA (17 U.S.C. ยง 1201 (f)) says that a person who is in legal possession of a program, is permitted to reverse-engineer and circumvent its protection if this is necessary in order to achieve "interoperability" - a term broadly covering other devices and programs being able to interact with it, make use of it, and to use and transfer data to and from it, in useful ways. A limited exemption exists that allows the knowledge thus gained to be shared and used for interoperability purposes.
"...An objective of this exception is to make it possible to connect all components of a computer system, including those of different manufacturers, so that they can work together."
And the US: Sec. 103(f) of the DMCA (17 U.S.C. ยง 1201 (f)) says that a person who is in legal possession of a program, is permitted to reverse-engineer and circumvent its protection if this is necessary in order to achieve "interoperability" - a term broadly covering other devices and programs being able to interact with it, make use of it, and to use and transfer data to and from it, in useful ways. A limited exemption exists that allows the knowledge thus gained to be shared and used for interoperability purposes.