enahnced i2c example

Author: neu-rah

examples/I2C_menu/I2C_menu.ino

@@ -16,29 +16,160 @@ https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home
 http://playground.arduino.cc/Code/LCD3wires
 */
 #include <Wire.h>
-#include <LiquidCrystal_I2C.h>
+#include <LiquidCrystal_I2C.h>//F. Malpartida LCD's driver
 #include <menu.h>//menu macros and objects
-#include <menuLCDs.h>//F. Malpartida LCD's
+#include <menuLCDs.h>
+#include <menuFields.h>
+#include <quadEncoder.h>//quadrature encoder driver and fake stream
+#include <keyStream.h>//keyboard driver and fake stream (for the encoder button)
+#include <chainStream.h>// concatenate multiple input streams (this allows adding a button to the encoder)
 
-LiquidCrystal_I2C lcd(0x27);//, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);  // Set the LCD I2C address
-menuLCD menu_lcd(lcd,16,2);//menu output device
+// rotary encoder pins
+#define encA    2
+#define encB    3
+#define encBtn  4
+
+#define LEDPIN 13
+
+//LiquidCrystal_I2C lcd(0x27);//, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);  // Set the LCD I2C address
+LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);  // Set the LCD I2C address and pinout
+
+//aux vars
+int ledCtrl=0;
+bool runMenu=false;
+bool scrSaverEnter=true;
+int percent;//just testing changing this var
+double fps=0;
+unsigned long lastFpsChk=0;
+int counter=0;
+
+///////////////////////////////////////////////////////////////////////////
+//functions to wire as menu actions
+bool pauseMenu() {
+  runMenu=false;
+  scrSaverEnter=true;
+}
+bool ledOn() {
+  Serial.println("set led on!");
+  digitalWrite(LEDPIN,ledCtrl=1);
+  return false;
+}
+
+bool ledOff() {
+  Serial.println("set led off!");
+  digitalWrite(LEDPIN,ledCtrl=0);
+  return false;
+}
+
+bool quit() {
+  Serial.println("Quiting after action call");
+  return true;
+}
+
+/////////////////////////////////////////////////////////////////////////
+// MENU DEFINITION
+// here we define the menu structure and wire actions functions to it
+// empty options are just for scroll testing
+
+/*bool setLed() {
+  digitalWrite(LEDPIN,ledCtrl);
+  return false;
+}*/
+TOGGLE(ledCtrl,setLed,"Led:",
+    VALUE("On",HIGH,ledOn),
+    VALUE("Off",LOW,ledOff)
+);
 
-MENU(mainMenu,"Main",
-  OP("Frequency",menu::nothing),
-  OP("Dutty",menu::nothing),
-  OP("Setup",menu::nothing)
+int selTest=0;
+SELECT(selTest,selMenu,"Select",
+  VALUE("Zero",0),
+  VALUE("One",1),
+  VALUE("Two",2)
 );
 
+int chooseTest=-1;
+CHOOSE(chooseTest,chooseMenu,"Choose ",
+  VALUE("First",1),
+  VALUE("Second",2),
+  VALUE("Third",3),
+  VALUE("Last",-1)
+);
+
+MENU(subMenu,"SubMenu"
+  ,OP("A",quit)
+  ,OP("B",quit)
+  ,OP("C",quit)
+  ,OP("D",quit)
+  ,OP("E",quit)
+  ,OP("F",quit)
+  ,OP("G",quit)
+  ,OP("H",quit)
+);
+
+MENU(mainMenu,"Main menu",
+  SUBMENU(setLed),
+  OP("LED On",ledOn),
+  OP("LED Off",ledOff),
+  SUBMENU(selMenu),
+  SUBMENU(chooseMenu),
+  SUBMENU(subMenu),
+  FIELD(percent,"Percent","%",0,100,10,1),
+  FIELD(fps,"fps [","]",0,0,0,0),
+  FIELD(counter,"counter [","]",0,0,0,0),
+  OP("Exit",pauseMenu)
+);
+
+void scrSaver() {
+  if (scrSaverEnter) {
+    lcd.clear();
+    lcd.print("|www.r-site.net|");
+    lcd.setCursor(0,1);
+    lcd.print("|click to enter|");
+    scrSaverEnter=false;
+  }
+}
+
+//the quadEncoder
+#define ENC_SENSIVITY 4
+quadEncoder quadEncoder(encA,encB);//simple quad encoder driver
+quadEncoderStream enc(quadEncoder,ENC_SENSIVITY);// simple quad encoder fake Stream
+
+//a keyboard with only one key :D, this is the encoder button
+keyMap encBtn_map[]={{-encBtn,menu::enterCode}};//negative pin numbers means we have a pull-up, this is on when low
+keyLook<1> encButton(encBtn_map);
+
+//alternative to previous but now we can input from Serial too...
+Stream* in3[]={&enc,&encButton,&Serial};
+chainStream<3> allIn(in3);
+
+//describing a menu output, alternatives so far are Serial or LiquidCrystal LCD
+menuLCD menu_lcd(lcd,16,2);//menu output device
+
 void setup()
 {
+  pinMode(LEDPIN,OUTPUT);
+  pinMode(encBtn,INPUT_PULLUP);
   Serial.begin(115200);
+  while(!Serial);
   Wire.begin();
+  quadEncoder.begin();
   lcd.begin(16,2);
-  lcd.print("Ok");
+  lcd.home();
+  lcd.print("Menu 2.x test");
 }
 
 void loop()
 {
-  //serial can use numbers or +/- and Enter=* Esc=/ to navigate (nav keys can be redefined)
-  mainMenu.poll(menu_lcd,Serial);
+  if (runMenu) mainMenu.poll(menu_lcd,allIn);
+  else if (allIn.read()==menu::enterCode) runMenu=true;
+  else scrSaver();
+  //simulate the delay of your program... if this number rises too much the menu will have bad navigation experience
+  //if so, then the menu can be wired into a timmer... leaving the shorter end to your code while it is running
+  counter=millis()/1000%60;
+  int d=micros()-lastFpsChk;
+  if (d>0) {
+    fps=1000000.0/d;
+    lastFpsChk+=d;
+  }
+  delay(50);
 }