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ixc2025:lappeenranta:team_1:start [2025/05/22 11:49] – [5. Future Improvements] mrcixc2025:lappeenranta:team_1:start [2025/05/22 15:51] (current) – [1. Group Introduction] mrc
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 ==== 1. Group Introduction ==== ==== 1. Group Introduction ====
  
 +We are DAMP+J, a team formed during the hackathon to explore how IoT can be used to influence individual behavior for sustainability and well-being. Our group brings together complementary skills in embedded systems, software engineering, UX design, and environmental awareness.
  
 +Our approach prioritizes simplicity, functionality, and measurable impact. Rather than building complex systems for their own sake, we focused on applying accessible technologies to address everyday habits that have long-term environmental consequences.
 +
 +Our final project, FRoast, reflects this mindset—a behavior-aware smart fridge prototype designed to promote conscious food habits, reduce waste, and make sustainability both personal and actionable.
 +
 +
 +=== Our team members ===
 +- Jorge Leon
 +- Marcia Rodrigues
 +- Daniella Fajardo
 +- Prachi Singhal
 +- Abdulkadir Abubakar
 ==== 2. Initial brainstorming ideas/concepts ==== ==== 2. Initial brainstorming ideas/concepts ====
  
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 We explored several IoT-based concepts that aim to nudge individuals toward sustainable, healthy, and inclusive behaviors, using a combination of sensors, actuators, for IoT tools. Below are the documented ideas from our brainstorming process: We explored several IoT-based concepts that aim to nudge individuals toward sustainable, healthy, and inclusive behaviors, using a combination of sensors, actuators, for IoT tools. Below are the documented ideas from our brainstorming process:
  
-=== 🚿 Smart Bath / Water Control System ===+=== Smart Bath / Water Control System ===
   * **Goal**: Reduce water and energy waste by encouraging shorter, more efficient showers.   * **Goal**: Reduce water and energy waste by encouraging shorter, more efficient showers.
   * **What it’s about**: This system monitors shower duration using steam and temperature sensors. It gives real-time feedback using buzzers, RGB lights, or LCD messages when a user exceeds optimal limits. The aim is to build awareness of water usage and promote sustainable bathing habits.   * **What it’s about**: This system monitors shower duration using steam and temperature sensors. It gives real-time feedback using buzzers, RGB lights, or LCD messages when a user exceeds optimal limits. The aim is to build awareness of water usage and promote sustainable bathing habits.
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     * Eco-feedback or daily stats to reward water-efficient behavior.     * Eco-feedback or daily stats to reward water-efficient behavior.
  
-=== 🌱 Sustainability Coach – In-Room Behavioral Monitoring ===+=== Sustainability Coach – In-Room Behavioral Monitoring ===
   * **Goal**: Help individuals become more energy-conscious in their personal spaces.   * **Goal**: Help individuals become more energy-conscious in their personal spaces.
   * **What it’s about**: This system acts as a digital coach inside a user’s room. It monitors air conditioning use, artificial lighting, fan activity, and motion detection to identify unnecessary resource consumption. Feedback is delivered via lights, screen messages, and audio cues.   * **What it’s about**: This system acts as a digital coach inside a user’s room. It monitors air conditioning use, artificial lighting, fan activity, and motion detection to identify unnecessary resource consumption. Feedback is delivered via lights, screen messages, and audio cues.
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     * Idle Energy Consumption: Alerts if no motion is detected but devices/lights are left on.     * Idle Energy Consumption: Alerts if no motion is detected but devices/lights are left on.
  
-=== 🥩 Meat Consumption Awareness Coach (Concept) ===+=== Meat Consumption Awareness Coach (Concept) ===
   * **Goal**: Encourage more sustainable dietary choices by reducing unnecessary meat consumption.   * **Goal**: Encourage more sustainable dietary choices by reducing unnecessary meat consumption.
   * **What it’s about**: While not fully developed, the concept involved using fridge/cooking access data to infer meat-heavy consumption patterns. The system would then prompt users with healthy plant-based alternatives or reminders through the display or audio.   * **What it’s about**: While not fully developed, the concept involved using fridge/cooking access data to infer meat-heavy consumption patterns. The system would then prompt users with healthy plant-based alternatives or reminders through the display or audio.
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     * While not implemented, this idea is aligned with the final fridge project selected.     * While not implemented, this idea is aligned with the final fridge project selected.
  
-=== ♿ EcoAccess Station – Adaptive Smart Environment for Inclusion ===+=== EcoAccess Station – Adaptive Smart Environment for Inclusion ===
   * **Goal**: Combine energy efficiency with personalized accessibility for users with diverse needs.   * **Goal**: Combine energy efficiency with personalized accessibility for users with diverse needs.
   * **What it’s about**: EcoAccess Station uses **RFID** to identify users and adapt room conditions based on their physical or sensory requirements (e.g., mobility-impaired, heat-sensitive). It combines **motion**, **temperature**, and **humidity** sensors to optimize energy use while respecting user comfort.   * **What it’s about**: EcoAccess Station uses **RFID** to identify users and adapt room conditions based on their physical or sensory requirements (e.g., mobility-impaired, heat-sensitive). It combines **motion**, **temperature**, and **humidity** sensors to optimize energy use while respecting user comfort.
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     * Provides accessible feedback through color-coded LEDs and simple audio/text messages.     * Provides accessible feedback through color-coded LEDs and simple audio/text messages.
  
-=== ❄️ Coach Fridge – Personal Eating Habits(Selected Project) ===+=== Coach Fridge – Personal Eating Habits(Selected Project) ===
   * **Goal**: Promote healthier eating habits and reduce unconscious fridge use through personalized feedback.   * **Goal**: Promote healthier eating habits and reduce unconscious fridge use through personalized feedback.
   * **What it’s about**: Coach Fridge uses **RFID** to identify users and monitors their **frequency**, **duration**, and **timing** of fridge access using **motion**, **steam**, **gas**, and **temperature** sensors. Based on the behavior, it provides real-time nudges such as reminders to avoid late-night snacking or to shorten door-open time.   * **What it’s about**: Coach Fridge uses **RFID** to identify users and monitors their **frequency**, **duration**, and **timing** of fridge access using **motion**, **steam**, **gas**, and **temperature** sensors. Based on the behavior, it provides real-time nudges such as reminders to avoid late-night snacking or to shorten door-open time.
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 ==== 3. Day 2 Presentation slides ==== ==== 3. Day 2 Presentation slides ====
  
 +{{ :ixc2025:lappeenranta:team_1:measuring-user-behavior-change-in-froast.pdf |}}
 ==== 4. Finalised Idea, description & Functions ==== ==== 4. Finalised Idea, description & Functions ====
  
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 The project is a smart fridge system designed to monitor and influence users’ eating habits through real-time feedback and personalized behavior tracking. It uses RFID identification, sensors, and actuators to encourage healthier and more sustainable routines such as avoiding late-night snacking, reducing energy waste, and improving food management. The project is a smart fridge system designed to monitor and influence users’ eating habits through real-time feedback and personalized behavior tracking. It uses RFID identification, sensors, and actuators to encourage healthier and more sustainable routines such as avoiding late-night snacking, reducing energy waste, and improving food management.
  
-=== 🔎 Description ===+=== Description ===
  
 Each time a user approaches the fridge, they are identified using an RFID tag. The system monitors fridge access patterns — how often, when, and for how long the fridge is used — and cross-references this with sensor data (e.g., steam, gas, temperature, motion) to detect potential habits like: Each time a user approaches the fridge, they are identified using an RFID tag. The system monitors fridge access patterns — how often, when, and for how long the fridge is used — and cross-references this with sensor data (e.g., steam, gas, temperature, motion) to detect potential habits like:
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 Real-time nudges are provided through LEDs, buzzer sounds, and messages on an LCD display, mimicking the role of a digital “fridge coach.” Real-time nudges are provided through LEDs, buzzer sounds, and messages on an LCD display, mimicking the role of a digital “fridge coach.”
  
-=== ⚙️ Functions ===+=== Functions ===
  
   * **User Identification**: RFID module links behavior to individual users.   * **User Identification**: RFID module links behavior to individual users.
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   * Differentiate between habitual and intentional exceptions   * Differentiate between habitual and intentional exceptions
 ==== 6. SUSAF Analysis ==== ==== 6. SUSAF Analysis ====
 +
 +{{:ixc2025:lappeenranta:team_1:screenshot_2025-05-22_at_2.04.45 pm.png?400|}}
 +
 +{{:ixc2025:lappeenranta:team_1:screenshot_2025-05-22_at_2.04.30 pm.png?400|}}
 +
 +{{:ixc2025:lappeenranta:team_1:screenshot_2025-05-22_at_2.04.11 pm.png?400|}}
 +
 +{{:ixc2025:lappeenranta:team_1:screenshot_2025-05-22_at_2.04.06 pm.png?400|}}
 +
 +
  
  
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 ==== 8. Final Day Presentation Slides ==== ==== 8. Final Day Presentation Slides ====
  
 +{{ :ixc2025:lappeenranta:team_1:impactxchange-hackathon-3.pdf |}}
 ==== 9. Final Code ==== ==== 9. Final Code ====
  
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 import dht import dht
 from mfrc522_i2c import mfrc522 from mfrc522_i2c import mfrc522
 +import collections
 +
 +class MessageQueue:
 +    def __init__(self):
 +        self.queue = []
 +
 +    async def put(self, item):
 +        self.queue.append(item)
 +
 +    async def get(self):
 +        while not self.queue:
 +            await asyncio.sleep(0.1)  # Non-blocking wait
 +        return self.queue.pop(0)
 +
 +message_queue = MessageQueue()
  
 # Constants # Constants
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 STEAM_SENSOR.atten(ADC.ATTN_11DB)  # Full voltage range (0-3.3V) STEAM_SENSOR.atten(ADC.ATTN_11DB)  # Full voltage range (0-3.3V)
 STEAM_THRESHOLD = 800  # Analog value above this = steam detected STEAM_THRESHOLD = 800  # Analog value above this = steam detected
 +
 +current_user = "Unknown"
  
  
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-async def scroll_text(text, row, delay=1):+async def scroll_text(text, row, delay=0.5):
     if len(text) <= 16:     if len(text) <= 16:
         lcd.move_to(0, row)         lcd.move_to(0, row)
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         lcd.putstr(text[i:i + 16])         lcd.putstr(text[i:i + 16])
         await asyncio.sleep(delay)         await asyncio.sleep(delay)
- +     
-async def show_message(upper, lower=""): +async def message_handler(): 
-    lcd.clear() +    while True: 
-    await scroll_text(upper, 0) +        upper, lower = await message_queue.get() 
-    await scroll_text(lower, 1)+        lcd.clear() 
 +        await scroll_text(upper, 0) 
 +        await scroll_text(lower, 1)
  
 # --- ASYNC TASKS --- # --- ASYNC TASKS ---
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                 data = sum(rc522.uid.uidByte[0:rc522.uid.size])                 data = sum(rc522.uid.uidByte[0:rc522.uid.size])
                 print("Card UID:", data)                 print("Card UID:", data)
 +                current_user = data
 +                print("USER,TYPE={}, TIMESTAMP={}".format(current_user, time.time()))
 +                
                 if data == AUTHORIZED_ID:                 if data == AUTHORIZED_ID:
                     if door_opened:                     if door_opened:
 +                        print("LOG,TYPE=OPEN_DOOR, TIMESTAMP={}".format(time.time()))
                         duration = time.time() - open_time                         duration = time.time() - open_time
                         print("Duration:", duration)                         print("Duration:", duration)
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                         if duration > 15:                         if duration > 15:
                             await play_alarm()                             await play_alarm()
-                            await show_message("Your indecision is heating the planet.")+                            await message_queue.put(("Your indecision is heating the planet.", "")) 
 +                            print("WARNING,TYPE=OPEN_DOOR, TIMESTAMP={}".format(time.time())) 
                         else:                         else:
-                            await show_message("Thanks", "For closing me")+                            await message_queue.put(("Thanks", "For closing me"))
                     else:                     else:
                         await open_door()                         await open_door()
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                         current_hour = time.localtime()[3]                         current_hour = time.localtime()[3]
                         if current_hour >= 23 or current_hour < 5:                         if current_hour >= 23 or current_hour < 5:
-                            await show_message("You hungry or just emotionally empty again?", "Go to sleep, goblin.")+                            await message_queue.put(("You hungry or just emotionally empty again?", "Go to sleep, goblin.")) 
 +                            print("WARNING,TYPE=LATE_NIGHT, TIMESTAMP={}".format(time.time()))
                         else:                         else:
-                            await show_message("Welcome!", "Door is open")+                            await message_queue.put(("Welcome!", "Door is open"))
  
                 else:                 else:
                     print("Not authorized")                     print("Not authorized")
-                    await show_message("Access Denied", "Invalid Card") +                    await message_queue.put(("Access Denied", "Invalid Card")) 
-        await asyncio.sleep(0.5)+        await asyncio.sleep(1)
  
 def monitor_steam_sensor(): def monitor_steam_sensor():
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             if analog_value > STEAM_THRESHOLD:             if analog_value > STEAM_THRESHOLD:
-                await show_message("The fridge is not your sauna, pal.") +                await message_queue.put(("The fridge is not your sauna, pal.", "")) 
-                print("🔥 Roast: The fridge is not your sauna.")+                print("WARNING,TYPE=HOT_FOOD, TIMESTAMP={}".format(time.time()))
  
             await asyncio.sleep(2)             await asyncio.sleep(2)
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         except Exception as e:         except Exception as e:
             print("DHT read error:", e)             print("DHT read error:", e)
-        await asyncio.sleep(4)+        await asyncio.sleep(2)
                  
 async def monitor_humidity(): async def monitor_humidity():
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             print('temperature:', temperature_value,'℃','humidity:', humidity_value,'%')             print('temperature:', temperature_value,'℃','humidity:', humidity_value,'%')
             if temperature_value > TEMP_THRESHOLD:             if temperature_value > TEMP_THRESHOLD:
-                await show_message("Want to cool the Sahara too?")+                await message_queue.put(("Want to cool the Sahara too?", "")) 
 +                print("WARNING,TYPE=HOT_FOOD, TIMESTAMP={}".format(time.time()))
             elif humidity_value > HUMIDITY_THRESHOLD:             elif humidity_value > HUMIDITY_THRESHOLD:
-                await show_message("Too hot in here!", "Not a sauna, pal.")+                await message_queue.put(("Too hot in here!", "Not a sauna, pal.")) 
 +                print("WARNING,TYPE=HOT_FOOD, TIMESTAMP={}".format(time.time()))
         except Exception as e:         except Exception as e:
             print("DHT read error:", e)             print("DHT read error:", e)
-        await asyncio.sleep(4)+        await asyncio.sleep(2)
  
 async def monitor_compartments(): async def monitor_compartments():
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             if(btnVal1 == 0):             if(btnVal1 == 0):
 +                await message_queue.put(("Those vitamins won’t drink themselves.", ""))
  
-                print("Those vitamins won’t drink themselves.")+                print("LOG,TYPE=VITAMIN, TIMESTAMP={}".format(time.time()))
                    
             btnVal2 = button2.value()             btnVal2 = button2.value()
  
             if(btnVal2 == 0):             if(btnVal2 == 0):
 +                await message_queue.put(("Food compartment opened.", ""))
  
-                print("Food compartment opened")+                print("LOG,TYPE=FOOD, TIMESTAMP={}".format(time.time()))
         except Exception as e:         except Exception as e:
             print("Compartments read error:", e)             print("Compartments read error:", e)
-        await asyncio.sleep(0.1)+        await asyncio.sleep(0.5)
  
 async def monitor_gas(): async def monitor_gas():
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             print("Gas Level:", gas_level)             print("Gas Level:", gas_level)
             if not gas_level:             if not gas_level:
-                await show_message("You really like cultivating diseases, huh?", "Did your fruit die?")+                await message_queue.put(("You really like cultivating diseases, huh?", "Did your fruit die?")) 
 +                print("WARNING,TYPE=FOOD_SPOILAGE, TIMESTAMP={}".format(time.time()))
         except Exception as e:         except Exception as e:
             print("Gas sensor error:", e)             print("Gas sensor error:", e)
-        await asyncio.sleep(5)+        await asyncio.sleep(3)
  
 # --- MAIN --- # --- MAIN ---
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         monitor_compartments(),         monitor_compartments(),
         monitor_steam_sensor(),         monitor_steam_sensor(),
-        monitor_gas()+        monitor_gas(), 
 +        message_handler()
     )     )