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README.md
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README.md
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# 🌡️ ThermoMood Display
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**A circular mood visualizer based on skin temperature — perfect for your desk or cubicle.**
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Touch the thermocouple, and the GC9A01A round display reveals a mood with color and snarky commentary.
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---
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## 📦 Features
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- Displays Fahrenheit temperature at the bottom of a circular screen
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- Mood is selected based on skin temperature ranges
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- Background color changes dynamically with mood
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- Funny, sarcastic, cubicle-safe mood labels
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- Word-wrapped, auto-centered text
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- Smooth average filtering to avoid noisy updates
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---
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## 🛠️ Hardware Requirements
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| Component | Details |
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|----------|---------|
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| **Microcontroller** | Arduino Nano ESP32 |
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| **Display** | 1.28" Round TFT GC9A01A (240x240) |
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| **Thermocouple** | Type K Thermocouple |
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| **Converter Module** | MAX6675 Thermocouple Amplifier |
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| **Wiring** | 4-Wire SPI (Display) + 3-Wire SPI (MAX6675) |
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---
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## 📷 Pinout (Example Wiring)
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| Signal | Arduino Nano ESP32 | Module |
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|--------|--------------------|--------|
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| **SO** (Thermocouple) | `D4` | MAX6675 SO |
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| **CS** (Thermocouple) | `D5` | MAX6675 CS |
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| **SCK** | `D6` | MAX6675 SCK |
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| **TFT DC** | `D7` | GC9A01A DC |
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| **TFT CS** | `D10` | GC9A01A CS |
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| **TFT RST** | `D8` | GC9A01A RST |
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| **TFT SCK/MOSI** | Default SPI | GC9A01A SCK/MOSI |
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---
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## 🎨 Mood Mapping (Temperature → Mood)
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| Temp Range (°F) | Example Moods |
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|-----------------|----------------|
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| `< 85` | "Are you even alive?", "CRASHING OUT" |
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| `85–87` | "Quietly spiraling", "Flatline on enthusiasm" |
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| `88–89` | "Classic cubicle-core", "Emotionally beige" |
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| `90–91` | "Deadline panic", "Running on fumes" |
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| `92–93` | "Unraveling", "Caffeinated and dangerous" |
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| `94–95` | "TIME FOR YOU TO GO HOME", "Corporate martyr detected" |
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| `> 96` | "Go touch grass", "Return to sender (overheated)" |
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---
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## 💻 Libraries Required
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Install these via the Arduino Library Manager:
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- `Adafruit_GFX`
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- `Adafruit_GC9A01A`
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- `MAX6675` (Adafruit version recommended)
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---
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## 🚀 To Run
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1. Wire up your components as listed.
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2. Upload `ThermoMood_Display.ino` using Arduino IDE (board: **Arduino Nano ESP32**).
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3. Touch the thermocouple — your mood will appear!
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---
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## 🤝 Contributions Welcome
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Want to add emoji, animations, or finger detection? Submit a pull request or suggest ideas!
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---
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## 🧠 License
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This project is open source under the MIT License.
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ThermoMood_Display.ino
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ThermoMood_Display.ino
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// ThermoMood Display Integration (Circular Layout, Mood-Centric)
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// Uses MAX6675 thermocouple and GC9A01A round TFT to display temperature-based moods
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#include <max6675.h>
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#include <SPI.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_GC9A01A.h>
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// Thermocouple SPI pin definitions
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#define SO_PIN D4
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#define CS_PIN D5
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#define SCK_PIN D6
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MAX6675 thermocouple(SCK_PIN, CS_PIN, SO_PIN);
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// TFT display pin definitions
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#define TFT_DC D7
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#define TFT_CS D10
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#define TFT_RST D8
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Adafruit_GC9A01A tft(TFT_CS, TFT_DC, TFT_RST);
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// Track last displayed stable temperature
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float lastDisplayedTemp = -999.0;
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// Return background color based on mood content
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uint16_t getMoodColor(const char* mood) {
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if (strstr(mood, "alive") || strstr(mood, "Frozen")) return GC9A01A_NAVY;
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if (strstr(mood, "spiraling") || strstr(mood, "low")) return GC9A01A_BLUE;
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if (strstr(mood, "meh") || strstr(mood, "core")) return GC9A01A_DARKGREY;
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if (strstr(mood, "deadline") || strstr(mood, "present")) return GC9A01A_ORANGE;
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if (strstr(mood, "existential") || strstr(mood, "panic")) return GC9A01A_TEAL;
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if (strstr(mood, "TIME FOR YOU") || strstr(mood, "martyr")) return GC9A01A_RED;
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if (strstr(mood, "CRASHING OUT") || strstr(mood, "overheated")) return GC9A01A_MAROON;
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return GC9A01A_PURPLE;
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}
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// Choose mood text based on input temperature (Fahrenheit)
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const char* getMood(float tempF) {
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if (tempF < 85) {
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const char* moods[] = {"Are you even alive?", "Frozen in apathy", "Intern from the underworld", "Just cold hands or cold heart?", "CRASHING OUT"}; return moods[random(0, 5)];
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} else if (tempF < 88) {
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const char* moods[] = {"Quietly spiraling", "Coffee might help, but not really", "Low-power mode engaged", "Social battery: low", "Flatline on enthusiasm"}; return moods[random(0, 5)];
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} else if (tempF < 90) {
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const char* moods[] = {"Classic cubicle-core", "Meh. Just meh.", "Functioning introvert mode", "Emotionally beige", "Dead inside, but on time"}; return moods[random(0, 5)];
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} else if (tempF < 92) {
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const char* moods[] = {"One deadline away from losing it", "Focused panic detected", "Productivity-induced suffering", "Almost emotionally present", "Running on fumes"}; return moods[random(0, 5)];
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} else if (tempF < 94) {
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const char* moods[] = {"Buzzing with existential dread", "Running on caffeine and vibes", "Possibly unraveling", "Caffeinated and dangerous", "Deadline ninja"}; return moods[random(0, 5)];
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} else if (tempF < 96) {
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const char* moods[] = {"Overclocked human processor", "Might spontaneously combust", "TIME FOR YOU TO GO HOME", "Stop. Breathe. Panic again.", "Corporate martyr detected"}; return moods[random(0, 5)];
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} else {
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const char* moods[] = {"Go touch grass. Immediately.", "Check for open flames", "Thermally unstable coworker", "CRASHING OUT", "Return to sender (overheated)"}; return moods[random(0, 5)];
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}
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}
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void setup() {
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Serial.begin(9600); // Start serial for debugging
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delay(500);
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tft.begin(); // Initialize TFT display
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tft.setRotation(0);
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tft.fillScreen(GC9A01A_BLACK); // Start with black screen
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randomSeed(analogRead(A0)); // Seed RNG for mood randomness
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}
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void loop() {
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static float lastStableTemp = -999;
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static float tempSum = 0;
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static int sampleCount = 0;
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float tempF = thermocouple.readFahrenheit(); // Read current temperature
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tempSum += tempF;
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sampleCount++;
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// Average temp every 10 readings to reduce noise
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if (sampleCount >= 10) {
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float avgTemp = tempSum / sampleCount;
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tempSum = 0;
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sampleCount = 0;
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// Only update display if temperature changes significantly
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if (abs(avgTemp - lastStableTemp) >= 1.0) {
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lastStableTemp = avgTemp;
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const char* mood = getMood(avgTemp);
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uint16_t moodColor = getMoodColor(mood);
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Serial.print("Temp: "); Serial.print(avgTemp); Serial.print(" F | Mood: "); Serial.println(mood);
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tft.fillScreen(moodColor); // Set background to mood color
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tft.drawCircle(120, 120, 119, GC9A01A_BLACK); // Thin border ring
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tft.drawCircle(120, 120, 118, GC9A01A_BLACK);
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// Draw mood message, word-wrapped in center
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tft.setTextColor(GC9A01A_WHITE);
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tft.setTextSize(2);
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int y = 100;
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char buffer[128];
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strncpy(buffer, mood, sizeof(buffer));
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buffer[sizeof(buffer) - 1] = '\0';
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char* line = strtok(buffer, " ");
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String currentLine = "";
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while (line != NULL) {
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if (currentLine.length() + strlen(line) + 1 < 15) {
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currentLine += line;
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currentLine += " ";
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} else {
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int x = (240 - currentLine.length() * 12) / 2;
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tft.setCursor(x, y);
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tft.print(currentLine);
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y += 20;
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currentLine = String(line) + " ";
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}
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line = strtok(NULL, " ");
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}
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if (currentLine.length() > 0) {
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int x = (240 - currentLine.length() * 12) / 2;
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tft.setCursor(x, y);
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tft.print(currentLine);
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}
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// Draw temperature at bottom
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tft.setTextColor(GC9A01A_WHITE);
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tft.setTextSize(2);
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char tempStr[10];
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sprintf(tempStr, "%d F", (int)avgTemp);
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int tempWidth = strlen(tempStr) * 12;
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int tempX = (240 - tempWidth) / 2;
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tft.setCursor(tempX, 210);
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tft.print(tempStr);
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}
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}
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delay(500); // Sample delay
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}
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