Dear Master,
i'm daksa, i have already learning adruino 2 days. i have a problem with my project in my office.
the concept is very simple, just reading data serial and parsing it into LCD. but my problem is, when i send data to adruino and show it into LCD, its doesnt match character. for example send "1" in LCD shows "g" , "a" shows "0" , "s" shows "F" etc..
i send it that character to aduino using software see on my attachment..
here my code in adruino
#include <LiquidCrystal.h>
//#include <SoftwareSerial.h>
//SoftwareSerial mySerial(8, 7); // RX, TX
char vdata;
//String str;
/*Connect LCD to Arduino:
LCD -> Arduino
1|VSS| -> Arduino GND
2|VDD| -> Arduino +5v
3|VO | -> Arduino GND pin + Resistor or Potentiometer
4|RS | -> Arduino pin 12
5|RW | -> Arduino GND - pin can be conected to 11. But Ground was used here.
6|E | -> Arduino pin 10
7|D0 | -> Arduino - Not Connected
8|D1 | -> Arduino - Not Connected
9|D2 | -> Arduino - Not Connected
10|D3 | -> Arduino - Not Connected
11|D4 | -> Arduino pin 5
12|D5 | -> Arduino pin 4
13|D6 | -> Arduino pin 3
14|D7 | -> Arduino pin 2
15|A | -> Arduino Pin 13 + Resistor (Backlight power)
16|K | -> Arduino GND (Backlight ground)
*/
//Arduino scrolling text example
LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 2);
int backLight = 13; // pin 13 will control the backlight
void setup()
{
// pinMode(backLight, OUTPUT); //set pin 13 as output
//analogWrite(backLight, 150); //controls the backlight intensity 0-254
lcd.begin(16,2); // columns, rows. size of display
lcd.clear(); // clear the screen
lcd.setCursor(0,0); // set cursor to column 0, row 0 (first row)
lcd.print("WELCOME"); // input your text here
delay(2000);
lcd.clear();
lcd.setCursor(0,0); // move cursor down one
lcd.print("WEIGHT : "); //input your text here
Serial.begin(9600);
// set the data rate for the SoftwareSerial port
// mySerial.begin(9600);
}
void loop()
{
lcd.setCursor(0,1); // set the cursor outside the display count
if (Serial.available()) {
// wait a bit for the entire message to arrive
delay(100);
while (Serial.available() > 0)
{
vdata = Serial.read();
Serial.println(vdata);
lcd.write(vdata);
}
}
}
thanks for your advice
ComExample.zip (245 KB)