holmes4:
Don't post screen captures - there almost unreadable Use copy and paste ffor both the code and the error message. Code in code tags of course.
Mark
sorry , here the code that i want to upload to my uno
/*
DFRobot LCD Shield for Arduino
Key Grab v0.4
Written by Glendon Klassen
gjklassen@gmail.com
http://www.sourceforge.net/users/ecefixer
http://ecefixer.tumblr.com
Special Thanks to keithspg@users.sf.net for Cytron device support ARVs.
Displays the currently pressed key on the LCD screen.
Key Codes (in left-to-right order):
None - 0
Select - 1
Left - 2
Up - 3
Down - 4
Right - 5
*/
#include <LiquidCrystal.h>
#include <DFR_Key.h>
//Pin assignments for DFRobot LCD Keypad Shield
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);
//---------------------------------------------
const int DFRKEY = 0;
const int CYTRON = 1;
DFR_Key keypad(1);
int localKey = 0;
int prevNonWaitKey = 0;
int count = 0;
String keyString = "";
void setup()
{
lcd.begin(16, 2);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Key Counter v0.4");
delay(1000);
/*
OPTIONAL
keypad.setRate(x);
Sets the sample rate at once every x milliseconds.
Default: 10ms
*/
keypad.setRate(10);
}
void loop()
{
/*
keypad.getKey();
Grabs the current key.
Returns a non-zero integer corresponding to the pressed key,
OR
Returns 0 for no keys pressed,
OR
Returns -1 (sample wait) when no key is available to be sampled.
*/
localKey = keypad.getKey();
if (localKey != SAMPLE_WAIT)
{
if (localKey != prevNonWaitKey)
{
if (localKey == UP_KEY)
{
count++;
}
else if (localKey == DOWN_KEY)
{
count--;
}
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Current Count:");
lcd.setCursor(0, 1);
lcd.print(count);
prevNonWaitKey = localKey;
}
}
}
and this is the error message
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp: In constructor 'DFR_Key::DFR_Key(int)':
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp:29: error: 'def' was not declared in this scope
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp:29: error: 'DFRKEY' was not declared in this scope
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp: At global scope:
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp:84: error: no 'void DFR_Key::setARV(int, int)' member function declared in class 'DFR_Key'
PaulS:
User downloaded libraries do NOT go in the core library folder. Learn to download and install them properly.
Did you restart the IDE after mangling the install?
so where i can put the user download libraries ? YES i always restart my IDE after add downloaded libraries
before i got this problem , i've download LcdBarGraph libraries and put in the core library folder , and upload was success .
so i think i can download other libraries and try to learn the function of the code inside the libraries , but when i upload this libraries , it always said , i just want to know how my LCDkeypad Shield work and function
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp: In constructor 'DFR_Key::DFR_Key(int)':
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp:29: error: 'def' was not declared in this scope
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp:29: error: 'DFRKEY' was not declared in this scope
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp: At global scope:
C:\Users\gissagiswara\Documents\Arduino\libraries\DFR_Key\DFR_Key.cpp:84: error: no 'void DFR_Key::setARV(int, int)' member function declared in class 'DFR_Key'
#include <DFR_Key.h> <-- DFR_Key.h has been located right ?
SORRY FOR MY ENGLISH 
