Hey, I have a couple of interrelated doubts.
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When my weighing scale sends me data via RS232 (through MAX232), what format is that data in? I want to know what functions I need to use to edit this data because there are a lot of trailing zeros for instance. Also, there is the presence of the letter "g" as shown in the image which I don't want.
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How can I achieve this before I send the data to the LCD. I want my data to only display the weight up to 4 digits (9999). Moreover, I want to use this data that I am receiving to do something (in real life, move a piston, but in this case just glowing an LED will be enough).
#include <SoftwareSerial.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(8,9,4,5,6,7);
SoftwareSerial mySerial(2, 3); // RX, TX <------<<<< use the pins you want
void setup()
{
Serial.begin(9600);
mySerial.begin(4800);
lcd.begin(16,2);
lcd.setCursor (0,0);
lcd.write("P1");
lcd.setCursor (4,0);
lcd.write("P");
lcd.setCursor (9,0);
lcd.write("1");
lcd.setCursor (13,0);
lcd.write("0");
}
void loop() {
if (mySerial.available()) {
delay(100);
lcd.setCursor(0,1);
lcd.print(" ");
while (mySerial.available() > 0) {
int x= mySerial.read();
Serial.write(x);
lcd.write(x);
}
}
}
. Thanks