Hi, Jason,
As I mentioned in my earlier post above (162059), I've got Arduino code that runs on an ESP32 chip, that creates a wifi server and then responds to client requests by switching servos on points. I think the ESP could support 16 servos as you want, but I'd have to check. ?The HiLetGo ESP I use is ?8.14 on Amazon and cheaper off AliExpress. ?Is that worth considering? ?I'm happy to share the code. ?(I don't know the RPi so don't know if Arduino sketches will run off it.)?
(I'm a programmer from the 70s whose now having fun but struggling to learn electronics in my retirement...)
Regards,
Les