House Key Anti-Loss System

I am gonna do a anti loss system for my house key for my final year project using arduino uno or esp32. Im an electrical engineer student. Give me a working schematic diagram and the wiring diagram for my project. My budget is RM150. So please be into my budget.

13 days

flux

0:58

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Defining Project Steps.

Planning response options.

Your goal is a beginner-friendly house-key anti-loss project within RM150 with a working schematic and wiring diagram.

I’ve prepared a Plan that covers:
1. requirements and scope
2. controller choice within budget
3. schematic + wiring diagram creation
4. final budget check

Click Start on the plan bar to generate it.

Since this project is different from the current one, you can also start it in a new project here: Create new project.

Plan

#Goal

Design a beginner-friendly anti-loss system for a house key that fits within a RM150 budget, producing a working schematic and wiring diagram. The system will use a microcontroller (Arduino Uno or ESP32) along with wireless communication and alarm indicators, ensuring the project meets final year project requirements.

#Implementation plan

Define System Requirements and Architecture
1. Document overall project objectives, including key detection/isolation, communication method, and alert mechanisms.
2. Establish budget constraints (RM150 total) and simplicity for beginner implementation.
Select and Add Main Components in the Schematic
1. Choose the microcontroller; select the Arduino Uno for its beginner-friendliness, availability, and cost-effectiveness.
2. Add a wireless communication module (e.g., a Bluetooth HC-05 module) for key tracking functionalities.
3. Include alert components such as a buzzer and LED indicator to signal loss conditions.
4. Add a compact power supply circuit (e.g., coin cell battery holder with appropriate voltage regulation if needed) to power the key-finder module.
**Develop the Working Schematic and Wiring Diagram
1. Draw the schematic linking the Arduino Uno to the Bluetooth module, buzzer, LED, and power supply.
2. Ensure proper interfacing (e.g., voltage level considerations between modules) and add decoupling capacitors or resistors as required.
3. Produce a wiring diagram that clearly shows connections between the Arduino, the peripheral modules, and the power source.
Budget Verification and Final Review
1. Validate that all selected components and extras stay within the RM150 budget.
2. Perform a schematic review to ensure the design meets project requirements and functionality for a final year project demo.

#Success criteria

A complete schematic and wiring diagram that includes an Arduino Uno, Bluetooth module, alert indicators (buzzer and LED), and a power supply.
The project design is demonstrably functional as an anti-loss system and remains within the RM150 budget.
Design documentation clearly outlines component connections and operational flow for the system demo.

Use ESP32 Bluetooth

Add RFID option

Keep under RM150

Include full diagrams

13 days

//Tracker Flux Project
#define F_CPU 12000000          //12Mhz
#include < avr / io.h >
    #include < avr / pgmspace.h >
    #include < util / delay.h >         //for delays
    #include < inttypes.h >
    #define USART_BAUDRATE 9600
#define BAUD_PRESCALE(((F_CPU / (USART_BAUDRATE * 16UL))) - 1)
void WaitMs(unsigned int ms);
void usart_init();
unsigned int usart_getch();
void usart_writech(unsigned char data);
void usart_message(unsigned char *var);
unsigned char value, i, lati_value[9], lati_dir, longi_value[10], longi_dir, final_message[30];
unsigned char deg = 0xB0;

Line: 169:5: Variable 'usart_writech' implicitly has an 'any' type, but a better type may be inferred from usage.Line: 3:9: Cannot find name 'F_CPU'.Line: 4:1: Operator '<' cannot be applied to types 'boolean' and 'number'.Line: 4:1: Operator '<' cannot be applied to types 'boolean' and 'number'.Line: 4:12: Cannot find name 'avr'.Line: 4:18: Cannot find name 'io'.Line: 5:16: Cannot find name 'avr'.Line: 5:22: Cannot find name 'pgmspace'.Line: 6:16: Cannot find name 'util'.Line: 6:23: Cannot find name 'delay'.Line: 7:16: Cannot find name 'inttypes'.Line: 10:13: Cannot find name 'USART_BAUDRATE'.Line: 11:9: Cannot find name 'BAUD_PRESCALE'.Line: 11:25: Cannot find name 'F_CPU'.Line: 11:34: Cannot find name 'USART_BAUDRATE'.Line: 11:53: Cannot find name 'UL'.Line: 13:6: Cannot find name 'WaitMs'.Line: 13:13: Cannot find name 'unsigned'.Line: 13:26: Cannot find name 'ms'.Line: 15:6: Cannot find name 'usart_init'.Line: 16:1: Cannot find name 'unsigned'.Line: 16:14: Cannot find name 'usart_getch'.Line: 17:20: Cannot find name 'unsigned'.Line: 17:29: Cannot find name 'char'.Line: 17:34: Cannot find name 'data'.Line: 18:6: Cannot find name 'usart_message'.Line: 18:20: Cannot find name 'unsigned'.Line: 18:29: Cannot find name 'char'.Line: 20:1: Cannot find name 'unsigned'.Line: 20:10: Cannot find name 'char'.Line: 20:15: Cannot find name 'value'.Line: 20:22: Cannot find name 'i'.Line: 20:25: Cannot find name 'lati_value'.Line: 20:40: Cannot find name 'lati_dir'.Line: 20:50: Cannot find name 'longi_value'.Line: 20:67: Cannot find name 'longi_dir'.Line: 20:78: Cannot find name 'final_message'.Line: 21:1: Cannot find name 'unsigned'.Line: 21:10: Cannot find name 'char'.Line: 21:15: Cannot find name 'deg'.Line: 23:5: Cannot find name 'main'.Line: 26:5: Cannot find name 'DDRC'.Line: 27:5: Cannot find name 'PORTC'.Line: 29:5: Cannot find name 'usart_init'.Line: 33:9: Cannot find name 'value'.Line: 33:17: Cannot find name 'usart_getch'.Line: 34:13: Cannot find name 'value'.Line: 36:13: Cannot find name 'value'.Line: 36:21: Cannot find name 'usart_getch'.Line: 37:17: Cannot find name 'value'.Line: 38:17: Cannot find name 'value'.Line: 38:25: Cannot find name 'usart_getch'.Line: 39:21: Cannot find name 'value'.Line: 40:21: Cannot find name 'value'.Line: 40:29: Cannot find name 'usart_getch'.Line: 41:25: Cannot find name 'value'.Line: 43:25: Cannot find name 'value'.Line: 43:33: Cannot find name 'usart_getch'.Line: 44:29: Cannot find name 'value'.Line: 45:29: Cannot find name 'value'.Line: 45:37: Cannot find name 'usart_getch'.Line: 46:33: Cannot find name 'value'.Line: 47:33: Cannot find name 'value'.Line: 47:41: Cannot find name 'usart_getch'.Line: 48:40: Cannot find name 'value'.Line: 49:37: Cannot find name 'value'.Line: 49:45: Cannot find name 'usart_getch'.Line: 52:38: Cannot find name 'i'.Line: 52:45: Cannot find name 'i'.Line: 52:52: Cannot find name 'i'.Line: 54:37: Cannot find name 'lati_value'.Line: 54:48: Cannot find name 'i'.Line: 54:53: Cannot find name 'usart_getch'.Line: 57:33: Cannot find name 'value'.Line: 57:41: Cannot find name 'usart_getch'.Line: 59:33: Cannot find name 'lati_dir'.Line: 59:44: Cannot find name 'usart_getch'.Line: 60:33: Cannot find name 'value'.Line: 60:41: Cannot find name 'usart_getch'.Line: 61:38: Cannot find name 'i'.Line: 61:45: Cannot find name 'i'.Line: 61:53: Cannot find name 'i'.Line: 63:37: Cannot find name 'longi_value'.Line: 63:49: Cannot find name 'i'.Line: 63:54: Cannot find name 'usart_getch'.Line: 65:33: Cannot find name 'value'.Line: 65:41: Cannot find name 'usart_getch'.Line: 67:38: Cannot find name 'i'.Line: 67:45: Cannot find name 'value'.Line: 67:59: Cannot find name 'i'.Line: 68:37: Cannot find name 'longi_value'.Line: 68:49: Cannot find name 'i'.Line: 68:54: Cannot find name 'usart_getch'.Line: 70:37: Cannot find name 'value'.Line: 70:45: Cannot find name 'longi_value'.Line: 70:57: Cannot find name 'i'.Line: 72:33: Cannot find name 'longi_dir'.Line: 72:45: Cannot find name 'usart_getch'.Line: 79:15: Cannot find name 'lati_value'.Line: 79:31: Cannot find name 'longi_value'.Line: 80:18: Cannot find name 'i'.Line: 80:25: Cannot find name 'i'.Line: 80:32: Cannot find name 'i'.Line: 81:17: Cannot find name 'final_message'.Line: 81:31: Cannot find name 'i'.Line: 81:36: Cannot find name 'lati_value'.Line: 81:47: Cannot find name 'i'.Line: 85:13: Cannot find name 'final_message'.Line: 85:32: Cannot find name 'lati_dir'.Line: 86:13: Cannot find name 'final_message'.Line: 87:18: Cannot find name 'i'.Line: 87:25: Cannot find name 'i'.Line: 87:33: Cannot find name 'i'.Line: 89:17: Cannot find name 'final_message'.Line: 89:31: Cannot find name 'i'.Line: 89:41: Cannot find name 'longi_value'.Line: 89:53: Cannot find name 'i'.Line: 93:13: Cannot find name 'final_message'.Line: 93:33: Cannot find name 'longi_dir'.Line: 94:13: Cannot find name 'final_message'.Line: 97:3: Cannot find name 'goto'.Line: 97:8: Cannot find name 'a'.Line: 98:16: Cannot find name 'PINC'.Line: 99:9: Cannot find name 'WaitMs'.Line: 100:9: Cannot find name 'usart_message'.Line: 101:9: Cannot find name 'WaitMs'.Line: 104:9: Cannot find name 'usart_message'.Line: 106:9: Cannot find name 'WaitMs'.Line: 108:9: Cannot find name 'WaitMs'.Line: 109:9: Cannot find name 'usart_message'.Line: 111:9: Cannot find name 'usart_message'.Line: 111:23: Cannot find name 'final_message'.Line: 113:9: Cannot find name 'WaitMs'.Line: 114:4: Cannot find name 'goto'.Line: 114:9: Cannot find name 'a'.Line: 124:6: Cannot find name 'WaitMs'.Line: 124:13: Cannot find name 'unsigned'.Line: 124:26: Cannot find name 'ms'.Line: 126:2: Cannot find name 'unsigned'.Line: 126:15: Cannot find name 'i'.Line: 128:10: Cannot find name 'i'.Line: 128:17: Cannot find name 'i'.Line: 128:22: Cannot find name 'ms'.Line: 128:26: Cannot find name 'i'.Line: 129:9: Cannot find name '_delay_ms'.Line: 135:6: Cannot find name 'usart_init'.Line: 138:5: Cannot find name 'UCSRB'.Line: 138:19: Cannot find name 'RXEN'.Line: 138:33: Cannot find name 'TXEN'.Line: 141:5: Cannot find name 'UCSRC'.Line: 141:20: Cannot find name 'URSEL'.Line: 141:35: Cannot find name 'UCZS0'.Line: 141:50: Cannot find name 'UCZS1'.Line: 144:5: Cannot find name 'UBRRL'.Line: 144:13: Cannot find name 'BAUD_PRESCALE'.Line: 146:5: Cannot find name 'UBRRH'.Line: 146:14: Cannot find name 'BAUD_PRESCALE'.Line: 150:1: Cannot find name 'unsigned'.Line: 150:14: Cannot find name 'usart_getch'.Line: 153:14: Cannot find name 'UCSRA'.Line: 153:28: Cannot find name 'RXC'.Line: 158:20: Cannot find name 'unsigned'.Line: 158:29: Cannot find name 'char'.Line: 158:34: Cannot find name 'data'.Line: 161:14: Cannot find name 'UCSRA'.Line: 161:28: Cannot find name 'UDRE'.Line: 162:5: Cannot find name 'UDR'.Line: 162:11: Cannot find name 'data'.Line: 165:6: Cannot find name 'usart_message'.Line: 165:20: Cannot find name 'unsigned'.Line: 165:29: Cannot find name 'char'.Line: 3:9: ';' expected.Line: 10:13: ';' expected.Line: 11:9: ';' expected.Line: 11:53: An identifier or keyword cannot immediately follow a numeric literal.Line: 11:56: ';' expected.Line: 11:57: Declaration or statement expected.Line: 11:62: ';' expected.Line: 13:22: ',' expected.Line: 13:26: ',' expected.Line: 16:1: Unexpected keyword or identifier.Line: 16:10: Unexpected keyword or identifier.Line: 17:29: ',' expected.Line: 17:34: ',' expected.Line: 18:29: ',' expected.Line: 18:35: Expression expected.Line: 18:38: Variable declaration expected.Line: 20:1: Unexpected keyword or identifier.Line: 20:10: Unexpected keyword or identifier.Line: 21:1: Unexpected keyword or identifier.Line: 21:10: Unexpected keyword or identifier.Line: 23:1: Unexpected keyword or identifier.Line: 79:13: Expression expected.Line: 79:29: Expression expected.Line: 97:3: Unexpected keyword or identifier.Line: 114:4: Unexpected keyword or identifier.Line: 124:22: ',' expected.Line: 124:26: ',' expected.Line: 126:2: Unexpected keyword or identifier.Line: 126:11: Unexpected keyword or identifier.Line: 150:1: Unexpected keyword or identifier.Line: 150:10: Unexpected keyword or identifier.Line: 158:29: ',' expected.Line: 158:34: ',' expected.Line: 165:29: ',' expected.Line: 165:35: Expression expected.Line: 165:38: Variable declaration expected.Line: 167:13: ',' expected.Line: 167:14: ',' expected.Line: 168:8: Expression expected.Line: 168:9: Expression expected.Line: 168:12: Variable declaration expected.Line: 169:18: ',' expected.Line: 169:19: Expression expected.Line: 169:22: Variable declaration expected.Line: 169:24: Expression expected.Line: 171:1: Declaration or statement expected.

Reviews

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Generic Capacitor
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Pricing & Availability

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