hello guys, im a student. i want to complete my project, but im not a programmers. so guys i need your help. so the study case is, i have 2 sensor (ultrasonic and loadcell), if the ultrasonic sensor detected distance what i want it can move the servo, but must have a certain weight setting. but I can't figure out how to set a weight (let's say 500 grams). then if the weight meets the servo can move. umm, I've made the code but it's still error, can you guys help me....
C-like:
#include <LiquidCrystal_I2C.h>
#include "HX711.h"
#include <Servo.h>
#define DOUT 2
#define CLK 4
#define calibration_factor 433.00
#define Trigpin 16
#define Echopin 15
HX711 scale;
LiquidCrystal_I2C lcd(0x27, 16, 2);
int GRAM;
long duration,distance;
Servo servomuter;
void setup () {
lcd.begin(16,2);
lcd.init();
lcd.backlight();
lcd.setCursor(4,0);
lcd.print("ilham kocak");
lcd.setCursor(5,1);
lcd.print("kontol");
delay(2000);
lcd.clear();
scale.begin(DOUT,CLK);
scale.set_scale(calibration_factor);
scale.tare();
pinMode(Trigpin,OUTPUT);
pinMode(Echopin,INPUT);
servomuter.attach(11);
Serial.begin(9600);
servomuter.write(0);
}
void loop() {
lcd.setCursor(0,0);
lcd.print("Silahkan Timbang");
lcd.setCursor(0,1);
lcd.print(scale.get_units(2), 0);
lcd.print(" gram");
lcd.print(" ");
digitalWrite(Trigpin,LOW);
delayMicroseconds(2);
digitalWrite(Trigpin,HIGH);
delayMicroseconds(10);
digitalWrite(Trigpin,LOW);
duration=pulseIn(Echopin,HIGH);
distance=duration/58.2;
if(distance<10 && distance>0)
{
Serial.println(distance);
servomuter.write(180);
delay(1000);
}
else
{
servomuter.write(90);
delay(1000);
}
}
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