#include <PinButton.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "thermistor.h"
#include "HardwareSerial.h"
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64
#define BUTTON_PIN 5
#define OLED_RESET -1
#define SCREEN_ADDRESS 0x3C
#define NTC_PIN A1
THERMISTOR thermistor(NTC_PIN, 10000, 3950, 10000);
uint16_t waterTemp;
PinButton mb(BUTTON_PIN);
bool tempMode = true;
bool editMode = false;
bool running = false;
unsigned long startTime = 0;
unsigned long currentTime;
unsigned long period;
String tempStatus = "";
String timeStatus = "stopped";
String teaTypes[] = {"green", "black", "oolong"};
int steepTemps[] = {170, 200, 180};
int steepTimes[] = {2, 4, 4};
int teaNum = 0;
String teaType = teaTypes[teaNum];
int steepTemp = steepTemps[teaNum];
int steepTime = steepTimes[teaNum];
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
void setup() {
Serial.begin(115200);
if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) { // Address 0x3D for 128x64
Serial.println(F("SSD1306 allocation failed"));
for(;;); // Don't proceed, loop forever
}
tempDisplay();
}
void loop() {
mb.update();
waterTemp = 190;
if (mb.isLongClick()) {
switchMode();
}
if (mb.isDoubleClick() and tempMode) {
editMode = !editMode;
if (editMode) {
tempEditDisplay();
}
else {
tempDisplay();
}
}
if (mb.isSingleClick() and tempMode and (!editMode)) {
if (teaNum < 2) {
teaNum += 1;
}
else {
teaNum = 0;
}
teaType = teaTypes[teaNum];
teaEditDisplay();
delay(2000);
tempDisplay();
}
if (mb.isSingleClick() and tempMode and editMode) {
if (steepTemp < 210) {
steepTemp += 5;
} else {
steepTemp = 170;
}
tempEditDisplay();
}
if (mb.isDoubleClick() and (!tempMode)) {
editMode = !editMode;
if (editMode) {
timeEditDisplay();
}
else {
timeDisplay();
}
}
if (mb.isSingleClick() and (!tempMode) and editMode) {
if (steepTime < 5) {
steepTime += 1;
} else {
steepTime = 1;
}
timeEditDisplay();
}
if (mb.isSingleClick() and (!tempMode) and (!editMode)){
if (running == false) {
running = true;
timeStatus = "running";
} else {
running = false;
timeStatus = "stopped";
}
timeDisplay();
}
if ((!tempMode) and mb.isDoubleClick()) {
Serial.println("change timer");
}
}
void checkTemp() {
if (waterTemp > steepTemp){
tempStatus = "hot";
}
else if ((steepTemp - waterTemp) > 5) {
tempStatus = "cold";
}
else {
tempStatus = "ready for brewing";
}
}
void checkTime() {
}
void tempDisplay() {
checkTemp();
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 10);
display.println(tempStatus);
display.display();
}
void teaEditDisplay() {
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 10);
display.println(teaType);
display.display();
}
void tempEditDisplay() {
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 10);
display.println(steepTemp);
display.display();
}
void timeEditDisplay() {
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 10);
display.println(steepTime);
display.display();
}
void timeDisplay() {
checkTime();
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 10);
display.println(timeStatus);
display.display();
}
void switchMode() {
if (tempMode) {
tempMode = !tempMode;
timeDisplay();
}
else {
tempMode = !tempMode;
tempDisplay();
}
Serial.println("mode changed");
}