Hi,
Staring blind to my pc trying to implement the oled display using u8g library.
tried many thing but doing something wrong and cannot find out what.
Blank at the moment don;t know what to do anymore.
Hope someone can help me out.
I like to display a string ' AGL' and the value 'AGL+counter" on my oled screen.
Help would appreciated, thanks
here is my code:
// ******************************************** OLED Display ********************************************
#include "U8glib.h"
U8GLIB_SH1106_128X64 u8g(U8G_I2C_OPT_NO_ACK); // Display which does not send ACK
// ********************************************** BME280 ************************************************
#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#define BME_SCK 13
#define BME_MISO 12
#define BME_MOSI 11
#define BME_CS 10
#define Sealevel_HPA (1013.25) // Set sealevel
Adafruit_BME280 bme; // I2C
unsigned long delayTime;
// ******************************************* FLAPS Sensor ********************************************
int AGL = 0; // Set initial heigth
int sensorPin = A0; // select the input pin for the flaps potentiometer
int sensorValue = 0; // variable to store the value coming from the sensor
int tol = 15; // set tolerance flaps slider
// ****************************************** Rotary Encoder *******************************************
#define inputCLK 8 // Set input pin CLK
#define inputDT 9 // Set input pin DT
int pinwaarde = 0;
int var = 0; //tijdelijk
int mode = 0;
int counter = 0; // Initial encoder count
float currentStateCLK; // Initial CLK state
float previousStateCLK; // Previous CLK state
String encdir = "";
// ****************************************** General Setup ********************************************
void setup() {
// Rotary encoder setup
pinMode (inputCLK, INPUT); // Set encoder pins as inputs
pinMode (inputDT, INPUT);
int gearPin = 5;
int buzzerPin = 6;
pinMode (7, INPUT); // Set input pin encoder switch
pinMode (buzzerPin, OUTPUT); // Buzzer pin
pinMode (gearPin, INPUT); // Gear down switch
Serial.begin(9600); // start serial port
unsigned status;
status = bme.begin();
}
void loop() {
mode = 0;
// read the value from the flaps-sensor:
//sensorValue = analogRead(sensorPin); // read serial value
if (sensorValue > 100 - tol && sensorValue < 150 + tol) {
Serial.println("flaps 1 ");
}
else if (sensorValue > 200 - tol && sensorValue < 250 + tol) {
Serial.println("flaps 2 ");
}
else if (sensorValue > 300 - tol && sensorValue < 350 + tol) {
Serial.println("flaps 3 ");
}
else if (sensorValue > 400 - tol && sensorValue < 450 + tol) {
Serial.println("flaps 4 ");
}
else if (sensorValue > 500 - tol && sensorValue < 550 + tol) {
Serial.println("flaps L1 ");
}
else if (sensorValue > 600 - tol && sensorValue < 650 + tol) {
Serial.println("flaps L2 ");
}
else Serial.print("---- ");
pinwaarde = digitalRead(7);
if (pinwaarde == LOW) {
subroutine();
};
// Print QNH
Serial.print("QNH = ");
Serial.print(int(bme.readPressure() / 100.0F));
Serial.print(" hPa ");
// Print AGL
AGL = (bme.readAltitude(Sealevel_HPA));
Serial.print("AGL = ");
Serial.print (AGL + counter);
Serial.println(" m");
if (AGL + counter < 150) { // Set Landing gear warning altitude and determine of gear is down
digitalWrite(6, HIGH);
}
else if (AGL + counter >= 150) {
digitalWrite(6, LOW);
}
delay(1000); // wait for xxx ms
}
void subroutine() { // Set AGL & QNH
var = 0;
while (var < 1) {
pinwaarde = digitalRead(7); // Read pinvalue ecncoder switch
if (pinwaarde == LOW)
{
mode++;
delay(1000);
if (mode == 3) // Long press value encoder switch for break out of loop
break; // Return to main
}
currentStateCLK = digitalRead(inputCLK); inputCLK; // Read the current state of inputCLK
if (currentStateCLK != previousStateCLK) {
if (digitalRead(inputDT) != currentStateCLK) {
counter --;
encdir = "CCW";
} else {
// Encoder is rotating clockwise
counter ++;
encdir = "CW";
}
AGL = (bme.readAltitude(Sealevel_HPA));
Serial.print("AGL = ");
Serial.print (AGL + counter); // Print AGL modified
Serial.println(" m");
previousStateCLK = currentStateCLK; // Update previousStateCLK with the current state
}
}
}