Hi Guys,
I am following a tutorial on creating menus and submenus.
First of thanks to EEEnthusiast for such tutorial.
His code is here.
I am not using an LCD but a 1.3" OLED with U8g2 library.
I tested this library using "Hello World" example and my OLED does work.
Now I am trying to use the above tutorial using my OLED but for some reasons, I can't make it work.
I am sure I am doing some silly mistake and can't seem to figure out where.
I will very much appreciate if anyone can help me solve the problem.
Thanks.
Code:
#include <Arduino.h>
#include <U8g2lib.h>
#include <SPI.h>
#include <Wire.h>
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
//Input & Button Logic
const int numOfInputs = 4;
const int inputPins[numOfInputs] = {8,9,10,11};
int inputState[numOfInputs];
int lastInputState[numOfInputs] = {LOW,LOW,LOW,LOW};
bool inputFlags[numOfInputs] = {LOW,LOW,LOW,LOW};
long lastDebounceTime[numOfInputs] = {0,0,0,0};
long debounceDelay = 5;
const int numOfScreens = 10;
int currentScreen = 0;
String screens[numOfScreens][2] = {{"Motor Voltage","Volts"}, {"Motor Current", "Amps"},
{"Motor Rated HP","HP"},{"Overload Temp.","degC"}, {"Accel Time", "Secs"}, {"Restart Time","Mins"},
{"Analog Out. Curr.","mA"},{"Input Temp.","degC"}, {"Run Time", "Hours"}, {"Start Times","times"}};
int parameters[numOfScreens];
void setup(void) {
for(int i = 0; i < numOfInputs; i++) {
pinMode(inputPins[i], INPUT);
digitalWrite(inputPins[i], HIGH); // pull-up 20k
}
u8g2.begin();
}
void loop(void) {
u8g2.firstPage();
do {
u8g2.setFont(u8g2_font_ncenB14_tr);
//u8g2.drawStr(0,24,"Hello World!");
setInputFlags();
resolveInputFlags();
printScreen();
} while ( u8g2.nextPage() );
}
void setInputFlags() {
for(int i = 0; i < numOfInputs; i++) {
int reading = digitalRead(inputPins[i]);
if (reading != lastInputState[i]) {
lastDebounceTime[i] = millis();
}
if ((millis() - lastDebounceTime[i]) > debounceDelay) {
if (reading != inputState[i]) {
inputState[i] = reading;
if (inputState[i] == HIGH) {
inputFlags[i] = HIGH;
}
}
}
lastInputState[i] = reading;
}
}
void resolveInputFlags() {
for(int i = 0; i < numOfInputs; i++) {
if(inputFlags[i] == HIGH) {
inputAction(i);
inputFlags[i] = LOW;
printScreen();
}
}
}
void inputAction(int input) {
if(input == 0) {
if (currentScreen == 0) {
currentScreen = numOfScreens-1;
}else{
currentScreen--;
}
}else if(input == 1) {
if (currentScreen == numOfScreens-1) {
currentScreen = 0;
}else{
currentScreen++;
}
}else if(input == 2) {
parameterChange(0);
}else if(input == 3) {
parameterChange(1);
}
}
void parameterChange(int key) {
if(key == 0) {
parameters[currentScreen]++;
}else if(key == 1) {
parameters[currentScreen]--;
}
}
void printScreen() {
u8g2.print(screens[currentScreen][0]);
//u8g2.setCursor(0,1);
u8g2.print(parameters[currentScreen]);
u8g2.print(" ");
u8g2.print(screens[currentScreen][1]);
}