I just started using the oled display with arduino (SSD 1331). To begin with i tried using it with an ultrasonic sensor. The output is then displayed on the oled. The output which i received on the display was not what i desired. What could be the possible errors?
CODE:
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1331.h>
#include <SPI.h>
Adafruit_SSD1331 display = Adafruit_SSD1331(cs, dc, rst);
const int trigPin = 1;
const int echoPin = 2;
// defining variables
long duration;
int distance;
// You can use any (4 or) 5 pins
#define sclk 13
#define mosi 11
#define cs 10
#define rst 9
#define dc 8
// Color definitions
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
void setup() {
pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
pinMode(echoPin, INPUT); // Sets the echoPin as an Input
Serial.begin(9600);
}
void loop() {
display.begin();
// Clears the trigPin
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
// Sets the trigPin on HIGH state for 10 micro seconds
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
// Reads the echoPin, returns the sound wave travel time in microseconds
duration = pulseIn(echoPin, HIGH);
// Calculating the distance
distance= duration*0.034/2;
// Prints the distance on the Serial Monitor
Serial.print("Distance: ");
Serial.println(distance);
display.print(distance);
}
