eng10

The problem:

• Roommates often forget to complete their assigned chores in time leading to disorganized living spaces.
• Simple manual methods of tracking can be hard to manage.
• People can claim to have completed a task without doing it.
• Ineffective task management can lead to conflicts between roommates.

Our Solution:

AN AUTOMATED CHORE TRAKING SYSTEM

• The device syncs with the user’s phone to keep track of when chores are completed.
• The device includes a timer to prevent users cheating the system and make sure they actually do the chores.
• User-friendly interface for easy implementation of task management system.
• Sensor detects when a cleaning implement has been picked up.

CAD Design:

Face plates indicate the time in 5 min intervals and user connections

The clock face	The bluetooth device face

Case holds two Adafruits for users and timer.Square case has space at the bottom to hold battery pack

Finished Design

Hardware:

The connections inside the device and in between the 2 modules

Inside the casing

Python Code:

#include <Arduino.h> // importing libraries
#include <bluefruit.h>
#include <Adafruit_CircuitPlayground.h>


BLEUart bleuart; // initializing a Bluetooth UART instance for the app to connect to

char BTdevName[32] = {};// bringing the dveice name out of the scope of the specific function so we can access it later
String BTdevStr;

String profiles[10] = {" ", " ", " ", " ", " ", " ", " ", " ", " ", " "}; // initializing an empty list to store known profiles


void setup(){
  Serial.begin(9600); // initializing serial communication to monitor the output
  while ( !Serial ) delay(10); // boilerplate compatibility stuff 
  Bluefruit.begin(); // initializing the on board Bluetooth module
  Bluefruit.setTxPower(4); // setting the Transmission power of the module 

  Bluefruit.Periph.setConnectCallback(connect_callback); // getting some data(calling back) from the connected device i.e. in this case, the name
  
  bleuart.begin(); // starting the BT UART interface
  CircuitPlayground.begin();

  startAdv(); // making the Bluetooth device discoverable and ready to pair
}


void startAdv(void){
  Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE); // setting flags so that the app knows what the device is
  Bluefruit.Advertising.addTxPower(); 
  
  Bluefruit.Advertising.addService(bleuart); // setting the bluetooth module to a mode where it can connect to the app
  
  Bluefruit.ScanResponse.addName();

  Bluefruit.Advertising.restartOnDisconnect(true); // refreshes the BT module when device disconnects
  Bluefruit.Advertising.setInterval(32, 244); // refresh rate of the Bluetooth scan
  Bluefruit.Advertising.setFastTimeout(30); // connection timeout to prevent infinite loops
  Bluefruit.Advertising.start(0); 
}


void connect_callback(uint16_t conn_handle){
  BLEConnection* connection = Bluefruit.Connection(conn_handle);
  char central_name[32] = { 0 }; // local variable to store the name
  connection->getPeerName(central_name, sizeof(central_name)); // getting the name of the connected device
  connection->getPeerName(BTdevName, sizeof(BTdevName)); 
  BTdevStr = BTdevName; // converting the name into a string

  Serial.println(BTdevStr); // printing the name of the device for testing
  if(CircuitPlayground.slideSwitch()){ // checking if the slide switch on the board is set to register mode
    
    for(int i; i<10; i++) { // iterating through the list of profiles to find an empty index
      
      if(String(profiles[i]) == " "){ // checking if the current index is empty
        
        profiles[i] = BTdevStr; // setting the currently connected bluetooth device to the empty index
        Serial.println("registered"); // printing for testing
        break; // breaking out of the loop
      }
      else{
      }
    }
  }
  else{ // if the slide switch is set to regular operation mode
    
    for(int i; i<10; i++) { // iterating through the list of known profiles
      
      if(String(profiles[i]) == BTdevStr){ // checking if the currently connected device is registered
        
        Serial.println("found"); // print statement for testing 
        Serial.println(i); // this will get passed on to the other device
      }
      else{
      }
  }
 }
}

void loop(){}

Demo Video:

Click on the image to watch the youtube video