# NoteButtons Multiple note buttons with sequential addresses. ```cpp pico #include "pico/stdlib.h" #include "pico/cyw43_arch.h" #include using namespace cs; BluetoothMIDI_Interface midi; NoteButtons<4> buttons { {2, 3, 4, 5}, // GPIO pins {MIDI_Notes::C[4], Channel_1}, // base address 1, // increment between addresses }; int main() { stdio_init_all(); if (cyw43_arch_init()) return 1; Control_Surface.begin(); while (true) { Control_Surface.loop(); sleep_ms(1); } } ```