Print LCD only 1 decimal point

[Patty0465]

How do I only print to one decimail on LCD dispaly

#include<Wire.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
 
const int MPU_addr=0x68;
int16_t AcX,AcY,AcZ,Tmp,GyX,GyY,GyZ;
 
int minVal=265;
int maxVal=402;
 
double x;
 
void setup(){
Wire.begin();
Wire.beginTransmission(MPU_addr);
Wire.write(0x6B);
Wire.write(0);
Wire.endTransmission(true);
lcd.begin(16, 2); 
Serial.begin(9600);
lcd.print("Scotts Level"); 
}
void loop()
{

Wire.beginTransmission(MPU_addr);
Wire.write(0x3B);
Wire.endTransmission(false);
Wire.requestFrom(MPU_addr,14,true);
AcX=Wire.read()<<8|Wire.read();
AcY=Wire.read()<<8|Wire.read();
AcZ=Wire.read()<<8|Wire.read();
int xAng = map(AcX,minVal,maxVal,-90,90);
int yAng = map(AcY,minVal,maxVal,-90,90);
int zAng = map(AcZ,minVal,maxVal,-90,90);
 
x= RAD_TO_DEG * (atan2(-yAng, -zAng)+PI);
lcd.setCursor(0, 1);

Serial.print("Level ");
Serial.println(x);
lcd.print(x);

delay(1200);
}

[JBornstein90]

The "u_int" designation creates an unsigned (meaning non-negitave value) as whole integers only...

Use a float, or double,

float x;

Lcd.print(x,1)

With the 1 being the decimal places to print

Edit- i see the double now, sorry for that!

[Patty0465]

Thanks

[jremington]

If you are attempting to calculate tilt angles, that code won't give accurate answers (the use of map() makes no sense at all).

This will (see this tutorial):

  float ax = AcX; 
  float ay = AcY;
  float az = AcZ;
  roll = atan2(ay ,az) * RAD_TO_DEG;
  pitch = atan2(-ax , sqrt(ay * ay + az * az)) * RAD_TO_DEG;