Hola,
My name is Juan, I am an electrical engineer, experience in hardware designs, programming and PCB designs.
Your project sounds very interesting.
Following you can find some tasks to guarantee the goal.
1. Know more about the tones that the converter provides.
2. Know more about the door actuator (if you chose one, or chose an actuator).
3. Use a microcontroller to program the code and modes, for example, it could have a code to program a new code, maybe profiles, etc. The programming is in C, good tool to solve this.
4. Create a test document to guarantee the functionality.
5. Recommendations and issues.
Thank for your time in reading this,
Best,
JJ