You can probably use an esp32 in place of a teensy. As far as arduinos go, a 32-bit board will do, while an 8-bit board probably won't. Have you tried to get in touch with the original developer, by the way?
You can probably use an esp32 in place of a teensy. As far as arduinos go, a 32-bit board will do, while an 8-bit board probably won't. Have you tried to get in touch with the original developer, by the way?