Yes. Just the clues I needed once again! Thank you! I am trying to understand how all this works so next I will try this in a switch/case configuration. Should be fun! Here is the code that works...
char menu;
char subMenu;
bool runOnce = true;
bool menuState = true;
void setup() {
Serial.begin(115200);
}
void topMenu() {
if (runOnce == true) {
Serial.println (" Main Menu ");
Serial.println (" A) Menu = A! B) Menu = B! C) Menu = C! D) Menu = D! ");
runOnce = false;
menuState = true;
}
}
void sub1Menu() {
menuState = false;
Serial.println (" Sub Menu ");
Serial.println("1) Choice One 2) Choice Two 3) Choice Three 4) Choice Four 5) Quit to Main");
}
void loop() {
topMenu();
while (Serial.available() == 0) {}
if (menuState == true) {
char menu = Serial.read();
if (menu == 'a') {
Serial.println ("Menu = A!");
sub1Menu();
}
else if (menu == 'b') {
Serial.println ("Menu = B!");
sub1Menu();
}
else if (menu == 'c') {
Serial.println ("Menu = C!");
sub1Menu();
}
else if (menu == 'd') {
Serial.println ("Menu = D!");
sub1Menu();
}
else {
Serial.println ("Choose Options A through D");
}
}
if (menuState == false) {
subMenu = Serial.read();
if (subMenu == '1'){
Serial.println("SubMenu = 1");
}
else if (subMenu == '2'){
Serial.println("SubMenu = 2");
}
else if (subMenu == '3'){
Serial.println("SubMenu = 3");
}
else if (subMenu == '4'){
Serial.println("SubMenu = 4");
}
else if (subMenu == '5'){
Serial.println("SubMenu = 5");
menu = 'q';
runOnce = true;
topMenu();
}
}
}