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sudoyasirsudoyasir
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Add SensorMenu example with DHT11, HC-SR04
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2 files changed

+196
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2 files changed

+196
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lines changed

‎examples/BasicMenu/BasicMenu.ino

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -89,7 +89,7 @@ void onMainSelect(int index) {
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display.setCursor(0, 0);
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display.println("OLED MenuUI v1");
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display.setCursor(0, 16);
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display.println("@sudoyasir"); // You can change or remove it
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display.println("@sudoyasir"); //You can change or remove it
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display.display();
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while (digitalRead(BUTTON_BACK) == HIGH); // Wait for back press

‎examples/SensorMenu/SensorMenu.ino

Lines changed: 195 additions & 0 deletions
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#include <Adafruit_GFX.h>
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#include <Adafruit_SSD1306.h>
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#include <DHT.h>
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#include <EEPROM.h>
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#include "MenuUI.h"
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// OLED configuration
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#define SCREEN_WIDTH 128
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#define SCREEN_HEIGHT 32
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#define OLED_RESET -1
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Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
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// Pins
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#define BUTTON_UP 2
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#define BUTTON_DOWN 3
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#define BUTTON_SELECT 4
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#define BUTTON_BACK 5
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#define BUZZER_PIN 6
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#define DHTPIN 7
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#define DHTTYPE DHT11
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#define TRIG_PIN 8
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#define ECHO_PIN 9
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// Components
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DHT dht(DHTPIN, DHTTYPE);
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MenuUI menu(&display, BUTTON_UP, BUTTON_DOWN, BUTTON_SELECT, BUTTON_BACK, BUZZER_PIN);
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// EEPROM addresses
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#define EEPROM_SOUND_ADDR 0
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#define EEPROM_BRIGHT_ADDR 1
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// State tracking
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bool soundOn = true;
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bool brightnessHigh = true;
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// Menu state
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enum ScreenState {
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SCREEN_MENU,
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SCREEN_TEMP,
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SCREEN_HUMID,
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SCREEN_DIST,
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SCREEN_ABOUT
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};
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ScreenState currentScreen = SCREEN_MENU;
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unsigned long lastUpdate = 0;
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// Menu items
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const char* mainMenu[] = {
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"Temperature",
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"Humidity",
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"Distance",
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"Settings",
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"About"
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};
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const char* settingsMenu[] = {
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"Sound: ON",
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"Brightness: HIGH"
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};
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void updateSettingsMenuLabels() {
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settingsMenu[0] = soundOn ? "Sound: ON" : "Sound: OFF";
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settingsMenu[1] = brightnessHigh ? "Brightness: HIGH" : "Brightness: LOW";
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}
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void setup() {
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Serial.begin(9600);
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display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
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dht.begin();
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pinMode(TRIG_PIN, OUTPUT);
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pinMode(ECHO_PIN, INPUT);
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// Read EEPROM settings
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soundOn = EEPROM.read(EEPROM_SOUND_ADDR) == 1;
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brightnessHigh = EEPROM.read(EEPROM_BRIGHT_ADDR) == 1;
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// Apply settings
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menu.setBeepEnabled(soundOn);
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menu.setBrightnessLevel(brightnessHigh ? 255 : 10);
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menu.begin();
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updateSettingsMenuLabels();
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menu.setMenuItems(mainMenu, 5);
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menu.setCallback(onMainSelect);
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menu.setBackCallback(nullptr);
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}
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void loop() {
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if (currentScreen == SCREEN_MENU) {
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menu.update();
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} else {
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updateScreen();
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if (digitalRead(BUTTON_BACK) == LOW) {
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delay(200); // simple debounce
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backToMain();
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currentScreen = SCREEN_MENU;
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}
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}
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}
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void updateScreen() {
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unsigned long now = millis();
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if (now - lastUpdate < 1000) return;
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lastUpdate = now;
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display.clearDisplay();
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display.setTextSize(1);
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display.setTextColor(SSD1306_WHITE);
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if (currentScreen == SCREEN_TEMP) {
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float t = dht.readTemperature();
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display.setCursor(0, 0);
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display.print("Temp (C)");
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display.setCursor(0, 16);
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display.setTextSize(2);
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display.print(isnan(t) ? 0 : t);
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} else if (currentScreen == SCREEN_HUMID) {
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float h = dht.readHumidity();
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display.setCursor(0, 0);
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display.print("Humidity (%)");
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display.setCursor(0, 16);
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display.setTextSize(2);
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display.print(isnan(h) ? 0 : h);
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} else if (currentScreen == SCREEN_DIST) {
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long duration, distance;
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digitalWrite(TRIG_PIN, LOW);
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delayMicroseconds(2);
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digitalWrite(TRIG_PIN, HIGH);
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delayMicroseconds(10);
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digitalWrite(TRIG_PIN, LOW);
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duration = pulseIn(ECHO_PIN, HIGH);
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distance = duration * 0.034 / 2;
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display.setCursor(0, 0);
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display.print("Distance (cm)");
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display.setCursor(0, 16);
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display.setTextSize(2);
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display.print(distance);
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} else if (currentScreen == SCREEN_ABOUT) {
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display.setCursor(0, 0);
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display.setTextSize(1);
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display.println("OLED Menu UI V1");
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display.setCursor(0, 16);
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display.println("@sudoyasir");
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}
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display.display();
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}
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void backToMain() {
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updateSettingsMenuLabels();
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menu.setMenuItems(mainMenu, 5, false);
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menu.setCallback(onMainSelect);
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menu.setBackCallback(nullptr);
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}
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void backToSettings() {
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updateSettingsMenuLabels();
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menu.setMenuItems(settingsMenu, 2, false);
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menu.setCallback(onSettingsSelect);
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menu.setBackCallback(backToMain);
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}
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void onMainSelect(int index) {
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switch (index) {
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case 0: currentScreen = SCREEN_TEMP; break;
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case 1: currentScreen = SCREEN_HUMID; break;
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case 2: currentScreen = SCREEN_DIST; break;
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case 3:
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updateSettingsMenuLabels();
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menu.setMenuItems(settingsMenu, 2);
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menu.setCallback(onSettingsSelect);
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menu.setBackCallback(backToMain);
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break;
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case 4: currentScreen = SCREEN_ABOUT; break;
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}
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lastUpdate = 0; // force refresh
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}
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void onSettingsSelect(int index) {
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if (index == 0) {
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soundOn = !soundOn;
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EEPROM.write(EEPROM_SOUND_ADDR, soundOn ? 1 : 0);
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menu.setBeepEnabled(soundOn);
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} else if (index == 1) {
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brightnessHigh = !brightnessHigh;
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EEPROM.write(EEPROM_BRIGHT_ADDR, brightnessHigh ? 1 : 0);
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menu.setBrightnessLevel(brightnessHigh ? 255 : 10);
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}
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updateSettingsMenuLabels();
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menu.setMenuItems(settingsMenu, 2, false);
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}

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