helo, i have the new 1.6.9 version of arduino, and i was trying to download the LiquidCrystal_i2c library to run my code but the libraries are not working and in the code i keep in receiving an error as follows:
POSITIVE’ was not declared in this scope
so is there any LiquidCrystal_I2C library for the arduino version 1.6.9 which is the latest version, or is there anything i can do to get the correct library to run the program
hope anybody can help me
There are multiple I2C libraries for LCD's. I think you need this one:
http://arduino-info.wikispaces.com/LCD-Blue-I2C
which is the New Liquid Crystal library. You MUST erase the old library before you install the new one and then you must restart the IDE.
i tried each library on this page and gives me the same problem. I am using the 1.6.9 arduino version,i dont know if the version has to do with this problem
jihad86:
i tried each library on this page and gives me the same problem. I am using the 1.6.9 arduino version,i dont know if the version has to do with this problem
I doubt it, as I'm using the same version and the library works just fine. Did you erase the old library?
yes i erased the old one and installed this one
Just let us see the code which you are using - otherwise we are guessing around what might be the issue
I tried to drive a lcd with ShiftRegLCD123.h and Arduino 1.6.9. It would not work what ever I tried. Some nice guy gave me the hint to install Arduino 1.6.5. That worked perfectly. Maybe this will be a solution for You too.
Graubart
This is the code:
#include <Wire.h> // use Wire library for protocol i2c (A4 = SDA & A5 = SCL)
#include <LiquidCrystal_I2C.h> // use LiquidCrystal_I2C library for control LCD on i2c protocol
#include <VirtualWire.h> // use Virtual library for decode signal from Rx module
byte thermometer[8] = //icon for thermometer
{
B00100,
B01010,
B01010,
B01110,
B01110,
B11111,
B11111,
B01110
};
byte droplet[8] = //icon for droplet
{
B00100,
B00100,
B01010,
B01010,
B10001,
B10001,
B10001,
B01110,
};
byte hi[8]= //icon for heat index
{
0B00000,
0B00000,
0B10101,
0B01110,
0B11111,
0B01110,
0B10101,
0B00000,
}; //(addr, EN,RW,RS,D4,D5,D6,D7,BL,BLpol)
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); //change the address as per your I2C module
// Sensors
int humidity=0;
int temp=0;
int heat_index=0;
char MsgReceived[21];
int led = 13; //pin for LED
void setup()
{
lcd.begin(20,4); // set up the LCD's number of columns and rows:
lcd.backlight(); //backlight is now ON
pinMode(led, OUTPUT);
// VirtualWire
// Bits per sec
vw_setup(2000);
// set pin for connect receiver module
vw_set_rx_pin(11);
// Start the receiver PLL running
vw_rx_start();
lcd.begin(20,4); // initialize the lcd for 20 chars 4 lines, turn on backlight
lcd.backlight(); // finish with backlight on
lcd.createChar(1, thermometer);
lcd.createChar(2, droplet);
lcd.createChar(3,hi);
lcd.clear(); // clear the screen
} // END void setup
void loop()
{
uint8_t buf[VW_MAX_MESSAGE_LEN];
uint8_t buflen = VW_MAX_MESSAGE_LEN;
//Taking the data from the control base
if (vw_get_message(buf, &buflen))
{
digitalWrite(led, HIGH);
delay(100);
int i;
// Message with a good checksum received, dump it.
for (i = 0; i < buflen; i++)
{
// Fill Msg Char array with corresponding
// chars from buffer.
MsgReceived = char(buf*);*
_ //Serial.print(MsgReceived*);
}_
sscanf(MsgReceived, "%d,%d,%d",&humidity, &temp,&heat_index); // Converts a string to an array*
* digitalWrite(led, LOW);*
* lcd_display();
_ memset( MsgReceived, 0, sizeof(MsgReceived));// This line is for reset the StringReceived*
* }
}
void lcd_display()
{ lcd.setCursor(1,0);
lcd.print(" WEATHER STATION ");
lcd.setCursor(4,1);
lcd.print("TEMP");
lcd.setCursor(9, 1);
lcd.write(1);
lcd.setCursor(11, 1);
lcd.print(temp);
lcd.write(0b11011111);
lcd.print("C");
lcd.setCursor(4,2);
lcd.print("HUM");
lcd.setCursor(9, 2);
lcd.write(2);
lcd.setCursor(11, 2);
lcd.print(humidity);
lcd.print("%");
lcd.setCursor(4,3);
lcd.print("HI");
lcd.setCursor(9, 3);
lcd.write(3);
lcd.setCursor(11, 3);_
lcd.print(heat_index);
_ lcd.write(0b11011111);
lcd.print("C");
}*_