Many thanks for the help larryd 
/* this code is a user interface for our project the curing box
it is simple and easy to use
FABLAB IRBID
V 1.0.0
a very appreciated graphics library is used in this project, the u8g2 lib
feel free to upgrade and fix this code
*/
//LCD libraries
#include <U8g2lib.h>
#include <SPI.h>
//Push buttons green=A red=B
int pushA = 7;
int pushB = 8;
int Aval = 0;
int Bval = 0;
//Potentiometers left=1 middle=2 right=3
int pot1 = A1;
int pot2 = A2;
int pot3 = A3;
int p1val = 0;
int p2val = 0;
int p3val = 0;
long hours = 0;
long minutes = 0;
long seconds = 0;
int speeds = 0; // rotational speed of the rotating plate
int brightness = 0; // brughtness of the uv leds
int Thermo = A4; // the temperature sensor lm35
int thermoval = 0; // the measured milli volts of the lm35
int temp = 0; // the temperature in celcuis
int leds = 5; // the output of the leds intensity control PWM
int motor = 6; //the output of the motor speed control PWM
int menu = 1; // the menu reference number
long alltime = 0; // the running time in milliseconds
int pause = 0; // state of the device if paused or not
U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R2, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 9);// setting the spi pins on the lcd arduino
void setup() {
//setting pins to input:
pinMode(pushA, INPUT);
pinMode(pushB, INPUT);
//setting pins to output:
pinMode(leds, OUTPUT);
pinMode(motor, OUTPUT);
u8g2.begin();// intializing the lcd screen
u8g2.enableUTF8Print(); // enabling print command
u8g2.setFont(u8g2_font_t0_11_tr); // setting the font displayed on the LCD
//The welcome screen:
do {
u8g2.drawStr(23, 20, "CURING BOX");
u8g2.drawStr(23, 50, "Fablab Irbid");
} while ( u8g2.nextPage() );
delay(2000);
}
void loop() {
u8g2.firstPage();
do {
//push buttons read:
Aval = digitalRead(pushA);
Bval = digitalRead(pushB);
//Potentiometer analog read:
p1val = analogRead(pot1);
p2val = analogRead(pot2);
p3val = analogRead(pot3);
//thermocouple analogue read:
thermoval = analogRead(Thermo);
temp = ( thermoval / 1024.0) * 500;
if (Aval == 1 && menu < 3) { // when pressing button a in the third menu
menu = menu + 1; // go to the next menu
delay(500);
}
else if (Bval == 1 && menu == 3) { // when pressing button b in the third menu
menu = 1; // go to menu 1
delay(500);
}
else if (alltime == 0 && menu == 3) { // when time is finished in the 3rd menu
menu = 4; // go to menu 4
delay(500);
}
else if (Aval == 1 && menu == 4) { // when pressing button a in the third menu
menu = 1; // go to menu 1
delay(500);
}
else if (Bval == 1 && menu == 2) { // when pressing button b in the second menu
menu = 1;
delay(500);
}
if (menu == 1) { // the first menu screen
// turn off leds and motor :
analogWrite(motor, 0);
analogWrite(leds, 0);
//the title of the menu:
u8g2.drawStr(20, 8, "Set Time");
// button next :
u8g2.drawCircle(112, 15, 15, U8G2_DRAW_ALL); //draw circle
u8g2.drawLine(93, 0, 93, 63);
u8g2.drawStr(101, 18, "Next");// print next
u8g2.drawFrame(4, 32, 85, 15); // draw frame
u8g2.drawStr(5, 30, "hr : min : sec");//print hr organization
hours = map(p1val, 1, 1020, 12, 0); // convert potentiomerter 1 values to hours
minutes = map(p2val, 1, 1020, 60, 0); // convert potentiomerter 2 values to minutess
seconds = map(p3val, 1, 1020, 60, 0); // convert potentiomerter 3 values to seconds
alltime = (hours * 3600000) + (minutes * 60000) + (seconds * 1000); // save the hours minutes and seconds in alltime in milliseconds
u8g2.setCursor(8, 43);
u8g2.print(hours);// print the hours
u8g2.setCursor(23, 43);
u8g2.print(":");
u8g2.setCursor(40, 43);
u8g2.print(minutes);//print the minutes
u8g2.setCursor(59, 43);
u8g2.print(":");
u8g2.setCursor(75, 43);
u8g2.print(seconds); //print the seconds
}
else if (menu == 2) { // the second menu
//print the title of this menu:
u8g2.drawStr(5, 8, "Set Speed &");
u8g2.drawStr(5, 19, " Brightness");
u8g2.drawCircle(112, 15, 15, U8G2_DRAW_ALL); //draw upper circle
u8g2.drawStr(101, 19, "Done"); // print done
u8g2.drawLine(93, 0, 93, 63);
u8g2.drawCircle(112, 48, 15, U8G2_DRAW_ALL); //draw lower circle
u8g2.drawStr(101, 52, "Back");// print back
speeds = map(p2val, 1, 1020, 100, 0); // convert potentiomerter 2 values to motor speed percent
brightness = map(p3val, 1, 1020, 100, 0); // convert potentiometer 3 values to brightness percent
//set time:
u8g2.setCursor(0, 40);
u8g2.print("Speed:");
u8g2.setCursor(45, 40);
u8g2.print(speeds);
u8g2.setCursor(65, 40);
u8g2.print("%");
//set brightness:
u8g2.setCursor(0, 53);
u8g2.print("Bright:");
u8g2.setCursor(45, 53);
u8g2.print(brightness);
u8g2.setCursor(65, 53);
u8g2.print("%");
analogWrite(motor, 255 * speeds / 100); //send motor speed out of 255
analogWrite(leds, 255 * brightness / 100); //send leds brightness out of 255
}
else if (menu == 3) { // the third menu
speeds = map(p2val, 1, 1020, 100, 0); // convert potentiomerter 2 values to motor speed percent
brightness = map(p3val, 1, 1020, 100, 0); // convert potentiometer 3 values to brightness percent
u8g2.drawCircle(112, 15, 15, U8G2_DRAW_ALL); //upper circle
u8g2.drawCircle(112, 48, 15, U8G2_DRAW_ALL); //lower circle
u8g2.drawStr(101, 52, "Stop");
u8g2.drawLine(93, 0, 93, 63);
if (Aval == 1 && pause == 0) {
pause = 1;
delay(200);
}
else if (Aval == 1 && pause == 1) {
pause = 0;
delay(200);
}
if (pause == 0) { // when not pausing check if there is time remaining
u8g2.drawStr(106, 19, "||");
u8g2.drawStr(20, 8, "Curing...");
analogWrite(motor, 255 * speeds / 100);
analogWrite(leds, 255 * brightness / 100);
if (alltime >= 0) { // when there still time keep going
hours = alltime / 3600000;
u8g2.setCursor(8, 59);
u8g2.print(hours);
u8g2.setCursor(23, 59);
u8g2.print(":");
minutes = (alltime / 60000) % 60;
u8g2.setCursor(40, 59);
u8g2.print(minutes);
u8g2.setCursor(59, 59);
u8g2.print(":");
seconds = (alltime % 60000) / 1000;
u8g2.setCursor(75, 59);
u8g2.print(seconds);
delay(50);
alltime = alltime - 160;
}
else if (alltime < 0) {
menu = 4;
}
}
else if (pause == 1) {
u8g2.drawStr(101, 19, "Play");
u8g2.drawStr(20, 8, "Paused");
analogWrite(motor, 0);
analogWrite(leds, 0);
}
//display temp
u8g2.setCursor(0, 46);
u8g2.print("Temp:");
u8g2.setCursor(45, 46);
u8g2.print(temp);
u8g2.setCursor(63, 46);
u8g2.print("'C");
//remap speeds and brightnes
speeds = map(p2val, 1, 1020, 100, 0);
brightness = map(p3val, 1, 1020, 100, 0);
//display speed
u8g2.setCursor(0, 20);
u8g2.print("Speed:");
u8g2.setCursor(45, 20);
u8g2.print(speeds);
u8g2.setCursor(65, 20);
u8g2.print("%");
//display brightness
u8g2.setCursor(0, 33);
u8g2.print("Bright:");
u8g2.setCursor(45, 33);
u8g2.print(brightness);
u8g2.setCursor(65, 33);
u8g2.print("%");
delay(50);
}
else if (menu = 4) { // the fourth menu
analogWrite(motor, 0);
analogWrite(leds, 0);
//display finish when the job is done:
u8g2.drawStr(23, 30, "Finish!");
u8g2.drawCircle(112, 15, 15, U8G2_DRAW_ALL); //draw upper cirle
u8g2.drawLine(93, 0, 93, 63);
u8g2.drawStr(104, 18, "New");
}
} while ( u8g2.nextPage() );
}/code]
UVbox_UI_v1_0_0.ino (10.7 KB)
