+ // when button 1 is on, all other states are unreadable
+ if (button_state.btn1) {
+ prev_state.btn1 = button_state.btn1;
+ } else {
+ handle_button(1, button_state.btn2, prev_state.btn2);
+ handle_brake(button_state.brake, prev_state.brake);
+ prev_state.all = button_state.all;
+ }