LCD Shield ansprechen

[Jens Weidner (Gast)]

Hallo,
ich habe mir für mein Arduino ein LCD Shield gekauft und zwar dieses 
hier: 
http://www.dfrobot.com/image/cache/data/DFR0009/DFR0009-500x500.jpg
(DFR0009).

Nun würde ich gerne einfach nur einen Text auf dem LCD ausgeben, doch 
leider klappt das ganze nicht. Ich habe bereits gesehen das ich dafür 
die LCD4BitLibrary brauche also habe ich mir diese gedownloaded und da 
ich am Mac bin habe ich diese in den passenden Ort 
(Documents->Arduino->libraries->) verschoben. Naja wenn ich das erste 
Beispiel nehme und versuche dieses hichzuladen bekomme ich immer eine 
Batterie an Error's die mir das compilieren nicht ermöglichen. Muss ich 
die LCD4BitLibrary irgendwie anders einbinden ?

Gruß Jens

[Peter D. (peda)]

Jens Weidner schrieb:
> bekomme ich immer eine
> Batterie an Error's

Das ist schonmal ne ganz blöde Idee, bei Errormeldungen nicht den 
exakten Wortlaut des ersten Errors zu posten (wozu gibt es copy&paste).
Und noch blöder ist es, nicht den Code anzuhängen, damit auch ja keiner 
die Zeilennnummer in der Errormeldung zuordnen kann.

Es mag Dich erstaunen, aber Hellseher gibt es nicht.


Peter

[Jens Weidner (Gast)]

ok das war in der Tat dumm von mir.
Hier der Code:

//example use of LCD4Bit_mod library

#include <LCD4Bit_mod.h> 
//create object to control an LCD.  
//number of lines in display=1
LCD4Bit_mod lcd = LCD4Bit_mod(2); 

//Key message
char msgs[5][15] = {"Right Key OK ", 
                    "Up Key OK    ", 
                    "Down Key OK  ", 
                    "Left Key OK  ", 
                    "Select Key OK" };
int  adc_key_val[5] ={30, 150, 360, 535, 760 };
int NUM_KEYS = 5;
int adc_key_in;
int key=-1;
int oldkey=-1;

void setup() { 
  pinMode(13, OUTPUT);  //we'll use the debug LED to output a heartbeat

  lcd.init();
  //optionally, now set up our application-specific display settings, overriding whatever the lcd did in lcd.init()
  //lcd.commandWrite(0x0F);//cursor on, display on, blink on.  (nasty!)
   lcd.clear();
  lcd.printIn("KEYPAD testing... pressing");
    
}

void loop() {

  adc_key_in = analogRead(0);    // read the value from the sensor  
  digitalWrite(13, HIGH);  
  key = get_key(adc_key_in);            // convert into key press
  
  if (key != oldkey)            // if keypress is detected
  {
    delay(50);    // wait for debounce time
    adc_key_in = analogRead(0);    // read the value from the sensor  
    key = get_key(adc_key_in);            // convert into key press
    if (key != oldkey)        
    {      
      oldkey = key;
      if (key >=0){
      lcd.cursorTo(2, 0);  //line=2, x=0
        lcd.printIn(msgs[key]);
      }
    }
  }
  
  //delay(1000);
  digitalWrite(13, LOW);
  

 
  
  
}

// Convert ADC value to key number
int get_key(unsigned int input)
{
  int k;
    
  for (k = 0; k < NUM_KEYS; k++)
  {
    if (input < adc_key_val[k])
    {
           
    return k;
        }
  }
    
    if (k >= NUM_KEYS)
        k = -1;     // No valid key pressed
    
    return k;
}

Und die Fehlermeldungen:

/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin/avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=100 -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/cores/arduino -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/variants/standard -I/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod /var/folders/pq/lb6rlzkj7t500lz2kp3jxl740000gn/T/build5921681952130448504.tmp/LCD4Bit_modExample.cpp -o/var/folders/pq/lb6rlzkj7t500lz2kp3jxl740000gn/T/build5921681952130448504.tmp/LCD4Bit_modExample.cpp.o 
LCD4Bit_modExample.cpp: In function 'void setup()':
LCD4Bit_modExample.cpp:31: warning: deprecated conversion from string constant to 'char*'
LCD4Bit_modExample.cpp: In function 'int get_key(unsigned int)':
LCD4Bit_modExample.cpp:72: warning: comparison between signed and unsigned integer expressions
/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin/avr-g++ -c -g -Os -Wall -fno-exceptions -ffunction-sections -fdata-sections -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=100 -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/cores/arduino -I/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/variants/standard -I/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod -I/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/utility /Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp -o/var/folders/pq/lb6rlzkj7t500lz2kp3jxl740000gn/T/build5921681952130448504.tmp/LCD4Bit_mod/LCD4Bit_mod.cpp.o 
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:29:57: error: WConstants.h: No such file or directory
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp: In member function 'void LCD4Bit_mod::pulseEnablePin()':
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:58: error: 'LOW' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:58: error: 'digitalWrite' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:59: error: 'delayMicroseconds' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:61: error: 'HIGH' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:64: error: 'delay' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp: In member function 'void LCD4Bit_mod::pushNibble(int)':
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:73: error: 'digitalWrite' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp: In member function 'void LCD4Bit_mod::commandWriteNibble(int)':
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:99: error: 'LOW' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:99: error: 'digitalWrite' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp: In member function 'void LCD4Bit_mod::commandWrite(int)':
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:106: error: 'LOW' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:106: error: 'digitalWrite' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp: In member function 'void LCD4Bit_mod::print(int)':
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:118: error: 'HIGH' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:118: error: 'digitalWrite' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:119: error: 'LOW' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp: In member function 'void LCD4Bit_mod::clear()':
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:139: error: 'delay' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp: In member function 'void LCD4Bit_mod::init()':
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:146: error: 'OUTPUT' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:146: error: 'pinMode' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:154: error: 'delay' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:160: error: 'delayMicroseconds' was not declared in this scope
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:174: warning: suggest parentheses around + or - inside shift
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp: In member function 'void LCD4Bit_mod::leftScroll(int, int)':
/Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:225: error: 'delay' was not declared in this scope

[Jens Weidner (Gast)]

hm keiner einen Tipp für mich ?

[Suchender (Gast)]

> /Users/Jens/Documents/Arduino/libraries/LCD4Bit_mod/LCD4Bit_mod.cpp:29:5 7
> : error: WConstants.h: No such file or directory

Ich habe von C null Ahnung, aber: Er sucht eine Datei, nämlich 
WConstants.h Die folgenden Fehlermeldungen beziehen sich auf die in der 
fehlenden Datei definierten Konstanten. Mit dieser Datei sollte es 
deutlich besser gehen.

[Jens Weidner (Gast)]

Ok danke, hatte mir schon so etwas gedacht,  nur da dies ja eine 
vorgefertigte Library ist, ging ich davon aus das die Datei includiert 
sei und ich einfach die Library falsch eingepflegt hätte. Naja habe nun 
die WConstants.h und wiring.h in den Ordner der Library gelegt und nun 
klappst ;)

Danke