#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
//#include <Keyboard.h>
// Rotary Encoder Input pins:
#define CLK 7
#define DT 8
#define SW 9
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
int currentStateCLK, lastStateCLK; // variables for rotary encoder
unsigned long lastButtonPress = 0; // variable for button on rotary encoder
String MenuItem1 = "Speed"; // default menu options:
String MenuItem2 = "Axis";
int SelectedMenuItem;
unsigned long displayTimer; // Timer for <<< and >>>
bool displayTimeEnabled; // enable timer
bool inMenu = true; // Navigation in which menu
bool inSpeedMenu, inAxisMenu, inJogMenu;
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
#define LOGO_HEIGHT 32
#define LOGO_WIDTH 128
const unsigned char logo_bmp [] PROGMEM = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xfc, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xf8, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xe0, 0x03, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0x80, 0x00, 0xff, 0xe1, 0xf7, 0x87, 0x0e, 0x61, 0xc1, 0xe7, 0x38, 0x60, 0x66, 0x19, 0x9f,
0xff, 0x00, 0xc0, 0x3f, 0xc0, 0xe3, 0x83, 0x06, 0x60, 0xc1, 0xe3, 0x30, 0x20, 0x64, 0x08, 0x9f,
0xfc, 0x03, 0xe0, 0x1f, 0xcd, 0xe3, 0x93, 0x26, 0x64, 0xcf, 0xe3, 0x33, 0x39, 0xe4, 0xc8, 0x9f,
0xf0, 0x0f, 0xf8, 0x07, 0xcf, 0xe3, 0x93, 0x26, 0x64, 0xcf, 0xe2, 0x33, 0x39, 0xe4, 0xc8, 0x1f,
0xf0, 0x3f, 0xfe, 0x07, 0xcf, 0xe3, 0x83, 0x0e, 0x64, 0xc1, 0xe2, 0x33, 0x39, 0xe4, 0xc8, 0x1f,
0xf0, 0x7f, 0x7f, 0x07, 0xcf, 0xc9, 0x87, 0x06, 0x64, 0xc3, 0xe0, 0x33, 0x39, 0xe4, 0xc8, 0x1f,
0xf0, 0xfc, 0x1f, 0x07, 0xcf, 0xd9, 0x97, 0x26, 0x64, 0xcf, 0xe0, 0x33, 0x39, 0xe4, 0xc9, 0x1f,
0xf0, 0xf8, 0x0c, 0x07, 0xcd, 0xc1, 0x93, 0x26, 0x64, 0xcf, 0xe0, 0x33, 0x39, 0xe4, 0xc9, 0x1f,
0xf0, 0xf0, 0x00, 0x07, 0xc0, 0xc1, 0x93, 0x06, 0x60, 0xc1, 0xe1, 0x30, 0x39, 0xe4, 0x09, 0x9f,
0xf0, 0xe0, 0x00, 0x07, 0xe1, 0x9c, 0x93, 0x0e, 0x61, 0xc1, 0xe5, 0x38, 0x79, 0xe6, 0x19, 0x9f,
0xf0, 0xf0, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xf0, 0xf0, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xf0, 0xe0, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xf0, 0xf0, 0x00, 0x07, 0xff, 0xf8, 0x70, 0xe6, 0x40, 0x83, 0x86, 0x7c, 0xf0, 0x61, 0xff, 0xff,
0xf0, 0xf8, 0x0e, 0x07, 0xff, 0xf0, 0x20, 0x66, 0x40, 0x81, 0x02, 0x7c, 0xf0, 0x60, 0xff, 0xff,
0xf0, 0xfc, 0x3f, 0x07, 0xff, 0xf3, 0x66, 0x62, 0x73, 0x99, 0x32, 0x7c, 0xf3, 0xe4, 0xff, 0xff,
0xf0, 0x7f, 0xff, 0x07, 0xff, 0xf3, 0xe6, 0x62, 0x73, 0x99, 0x32, 0x7c, 0xf3, 0xe4, 0xff, 0xff,
0xf0, 0x1f, 0xfe, 0x07, 0xff, 0xf3, 0xe6, 0x60, 0x73, 0x83, 0x32, 0x7c, 0xf0, 0x60, 0xff, 0xff,
0xf0, 0x0f, 0xf8, 0x07, 0xff, 0xf3, 0xe6, 0x60, 0x73, 0x83, 0x32, 0x7c, 0xf0, 0x61, 0xff, 0xff,
0xfc, 0x03, 0xe0, 0x1f, 0xff, 0xf3, 0xe6, 0x60, 0x73, 0x93, 0x32, 0x7c, 0xf3, 0xe5, 0xff, 0xff,
0xff, 0x00, 0x80, 0x7f, 0xff, 0xf3, 0x66, 0x64, 0x73, 0x93, 0x32, 0x7c, 0xf3, 0xe4, 0xff, 0xff,
0xff, 0x80, 0x00, 0xff, 0xff, 0xf0, 0x20, 0x64, 0x73, 0x99, 0x02, 0x0c, 0x10, 0x64, 0xff, 0xff,
0xff, 0xe0, 0x03, 0xff, 0xff, 0xf8, 0x70, 0xe6, 0x73, 0x99, 0x86, 0x0c, 0x10, 0x64, 0xff, 0xff,
0xff, 0xf8, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xfe, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
void setup() {
pinMode(CLK, INPUT);
pinMode(DT, INPUT);
pinMode(SW, INPUT_PULLUP);
Serial.begin(9600);
// Keyboard.begin();
// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
Serial.println(F("SSD1306 allocation failed"));
for (;;); // Don't proceed, loop forever
}
display.clearDisplay();
display.drawBitmap(
(display.width() - LOGO_WIDTH ) / 2,
(display.height() - LOGO_HEIGHT) / 2,
logo_bmp, LOGO_WIDTH, LOGO_HEIGHT, 1);
display.display();
delay(1000);
selectMenu(0); // Default menu with cursor on 0
lastStateCLK = digitalRead(CLK);
}
void loop() {
while (inMenu) { // in the main menu
int rotary = checkEncoder(); // Check rotary encoder movement
if (rotary == 1) { // If CW rotation, move the cursor to next item and refresh the OLED
SelectedMenuItem++;
if (SelectedMenuItem > 2) SelectedMenuItem = 0;
selectMenu(SelectedMenuItem);
}
else if (rotary == -1) { // CCW rotation
SelectedMenuItem--;
if (SelectedMenuItem < 0) SelectedMenuItem = 2;
selectMenu(SelectedMenuItem);
}
else if (rotary == 10) { // If button was pressed, check which sub-menu is selected and enter that
if (SelectedMenuItem == 0) {
inSpeedMenu = true;
speedMenu(0);
}
else if (SelectedMenuItem == 1) {
inAxisMenu = true;
axisMenu(0);
}
else if (SelectedMenuItem == 2) {
inJogMenu = true;
jogMenu(0);
}
inMenu = false;
SelectedMenuItem = 0;
delay(300);
}
delay(1);
}
while (inSpeedMenu) {
int rotary = checkEncoder();
if (rotary == 1) {
SelectedMenuItem++;
if (SelectedMenuItem > 3) SelectedMenuItem = 0;
speedMenu(SelectedMenuItem);
}
else if (rotary == -1) {
SelectedMenuItem--;
if (SelectedMenuItem < 0) SelectedMenuItem = 3;
speedMenu(SelectedMenuItem);
}
else if (rotary == 10) { // Press key and go to main menu
if (SelectedMenuItem == 0) {
MenuItem1 = "0.025mm";
// Keyboard.press(49); // key 1
delay(50);
// Keyboard.release(49); // key 1
}
else if (SelectedMenuItem == 1) {
MenuItem1 = "0.25mm";
// Keyboard.press(50); // key 2
delay(50);
// Keyboard.release(50); // key 2
}
else if (SelectedMenuItem == 2) {
MenuItem1 = "1mm";
// Keyboard.press(51); // key 3
delay(50);
// Keyboard.release(51); // key 3
}
else if (SelectedMenuItem == 3) {
MenuItem1 = "Fast";
// Keyboard.press(52); // key 4
delay(50);
// Keyboard.release(52); // key 4
}
inSpeedMenu = false;
inMenu = true;
SelectedMenuItem = 0;
selectMenu(SelectedMenuItem);
delay(300);
}
delay(1);
}
while (inAxisMenu) {
int rotary = checkEncoder();
if (rotary == 1) {
SelectedMenuItem++;
if (SelectedMenuItem > 2) SelectedMenuItem = 0;
axisMenu(SelectedMenuItem);
}
else if (rotary == -1) {
SelectedMenuItem--;
if (SelectedMenuItem < 0) SelectedMenuItem = 2;
axisMenu(SelectedMenuItem);
}
else if (rotary == 10) { // Press key and go to main menu
if (SelectedMenuItem == 0) {
MenuItem2 = "X";
}
else if (SelectedMenuItem == 1) {
MenuItem2 = "Y";
}
else if (SelectedMenuItem == 2) {
MenuItem2 = "Z";
}
inAxisMenu = false;
inMenu = true;
SelectedMenuItem = 0;
selectMenu(SelectedMenuItem);
delay(300);
}
delay(1);
}
while (inJogMenu) {
int rotary = checkEncoder();
if (rotary == 1) {
jogMenu(2); // CW rotation
displayTimeEnabled = true;
displayTimer = millis();
if (MenuItem2 == "X") {
// Keyboard.press(218); // key up
delay(10); // Use higher if needed
// Keyboard.release(218); // key up
}
else if (MenuItem2 == "Y") {
// Keyboard.press(215); // key right
delay(10);
// Keyboard.release(215); // key right
}
else if (MenuItem2 == "Z") {
// Keyboard.press(211); // page up
delay(10); // Use higher if needed
// Keyboard.release(211); // page up
}
}
else if (rotary == -1) {
jogMenu(1); // CCW rotation
displayTimeEnabled = true;
displayTimer = millis();
if (MenuItem2 == "X") {
// Keyboard.press(217); // key down
delay(10); // Use higher if needed
// Keyboard.release(217); // key down
}
else if (MenuItem2 == "Y") {
// Keyboard.press(216); // key left
delay(10);
// Keyboard.release(216); // key left
}
else if (MenuItem2 == "Z") {
// Keyboard.press(214); // page down
delay(10); // Use higher if needed
// Keyboard.release(214); // page down
}
}
else if (rotary == 10) {
inJogMenu = false;
inMenu = true;
SelectedMenuItem = 0;
selectMenu(SelectedMenuItem);
delay(300);
}
if (displayTimeEnabled && displayTimer + 300 < millis()) { // timer to delete the <<< and >>> after 300ms after last rotation
displayTimeEnabled = false;
jogMenu(0);
}
delay(1);
}
}
int checkEncoder() { // Check movement and return the value of movement
int encoder = 0;
currentStateCLK = digitalRead(CLK);
if (currentStateCLK != lastStateCLK && currentStateCLK == 1) {
if (digitalRead(DT) != currentStateCLK) { //--
encoder = 1;
} else { // ++
encoder = -1;
}
}
lastStateCLK = currentStateCLK;
if (!digitalRead(SW)) {
if (millis() - lastButtonPress > 50) {
encoder = 10;
}
lastButtonPress = millis();
}
return encoder;
}
void selectMenu(int cursor) // draw graphical interface
{
display.clearDisplay();
display.setTextColor(SSD1306_WHITE);
display.setTextSize(1);
if (cursor == 0) {
display.fillRect(0, 0, 42, 32, SSD1306_WHITE);
display.setTextColor(SSD1306_BLACK);
if (MenuItem1 == "0.025mm") display.setCursor(0, 12);
else if (MenuItem1 == "0.25mm") display.setCursor(4, 12);
else if (MenuItem1 == "1mm") display.setCursor(12, 12);
else if (MenuItem1 == "Fast") display.setCursor(10, 12);
else display.setCursor(6, 12); // Speed
display.print(MenuItem1);
display.setTextColor(SSD1306_WHITE);
if (MenuItem2 != "Axis") {
display.setCursor(62, 12);
display.print(MenuItem2);
}
else {
display.setCursor(52, 12);
display.print(MenuItem2);
}
display.setCursor(98, 12);
display.print("Jog");
}
if (cursor == 1) {
display.fillRect(42, 0, 43, 32, SSD1306_WHITE);
display.setTextColor(SSD1306_BLACK);
if (MenuItem2 != "Axis") {
display.setCursor(62, 12);
display.print(MenuItem2);
}
else {
display.setCursor(52, 12);
display.print(MenuItem2);
}
display.setTextColor(SSD1306_WHITE);
if (MenuItem1 == "0.025mm") display.setCursor(0, 12);
else if (MenuItem1 == "0.25mm") display.setCursor(4, 12);
else if (MenuItem1 == "1mm") display.setCursor(12, 12);
else if (MenuItem1 == "Fast") display.setCursor(10, 12);
else display.setCursor(6, 12); // Speed
display.print(MenuItem1);
display.setCursor(98, 12);
display.print("Jog");
}
if (cursor == 2) {
display.fillRect(85, 0, 43, 32, SSD1306_WHITE);
display.setTextColor(SSD1306_BLACK);
display.setCursor(98, 12);
display.print("Jog");
display.setTextColor(SSD1306_WHITE);
if (MenuItem1 == "0.025mm") display.setCursor(0, 12);
else if (MenuItem1 == "0.25mm") display.setCursor(4, 12);
else if (MenuItem1 == "1mm") display.setCursor(12, 12);
else if (MenuItem1 == "Fast") display.setCursor(10, 12);
else display.setCursor(6, 12); // Speed
display.print(MenuItem1);
if (MenuItem2 != "Axis") {
display.setCursor(62, 12);
display.print(MenuItem2);
}
else {
display.setCursor(52, 12);
display.print(MenuItem2);
}
}
display.display();
}
void speedMenu(int speedoption) { // draw graphical interface
display.clearDisplay();
display.setTextColor(SSD1306_WHITE);
display.setTextSize(1);
if (speedoption == 0) {
display.setCursor(43, 12);
display.print("0.025mm");
}
else if (speedoption == 1) {
display.setCursor(47, 12);
display.print("0.25mm");
}
else if (speedoption == 2) {
display.setCursor(56, 12);
display.print("1mm");
}
else if (speedoption == 3) {
display.setCursor(53, 12);
display.print("Fast");
}
display.display();
}
void axisMenu(int axisoption) { // draw graphical interface
display.clearDisplay();
display.setTextColor(SSD1306_WHITE);
display.setTextSize(1);
display.setCursor(62, 12);
if (axisoption == 0) {
display.print("X");
}
else if (axisoption == 1) {
display.print("Y");
}
else if (axisoption == 2) {
display.print("Z");
}
display.display();
}
void jogMenu(int option) { // draw graphical interface
display.clearDisplay();
display.setTextColor(SSD1306_WHITE);
display.setTextSize(1);
if (option == 1) {
display.setCursor(49, 12);
display.print("<<<<");
}
else if (option == 2) {
display.setCursor(49, 12);
display.print(">>>>");
}
else if (option == 0) {
display.setCursor(62, 12);
display.print("0");
}
display.display();
}