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Digitally Controlled Home Automation using DTMF Technology
Project Description
This home automation system utilizes DTMF (Dual Tone Multi-Frequency) technology to remotely control home appliances via phone calls. The system eliminates the necessity to manually operate wall switches by allowing users to dial designated numbers linked to particular loads. When a call is received by the mobile phone connected to the system, the decoded DTMF signals trigger relay drivers to switch appliances ON or OFF. This design avoids microcontroller usage by employing DTMF Decoder, De-Multiplexer, Flip-Flop ICs, and relay drivers, powered by a 12V transformer. The system demonstrates control via lamps simulating AC loads.
 
Total List of Components
  • DTMF Decoder IC
  • 555 Timer IC
  • De-multiplexer IC
  • Flip Flop IC
  • Resistors
  • Capacitors
  • Transistors
  • Diodes
  • LEDs
  • Push Buttons
  • Switches
  • Cables and Connectors
  • PCB and Breadboards
  • Transformer / Adapter (12V)
  • IC Sockets
  • Lamps (for demonstration)
 
Features
  • Remote control of home appliances via phone call using DTMF
  • No need for microcontroller, lowering complexity and cost
  • Reliable and simple operation through phone keypad tones
  • Controls multiple devices independently with designated DTMF codes
  • Uses relay drivers for switching high-voltage AC loads
  • Easy installation with standard electronic components
  • Low power consumption with 12V transformer supply
 
Applications
  • Residential home appliance control
  • Remote lighting control
  • Appliance on/off scheduling
  • Security systems with remote activation
  • Offices and small industries for device management
  • Automation for elderly or disabled users
 
Project Includes:
  • Fully assembled and tested circuit
  • Circuit diagram
  • Source code 
(For DIY KITs - only the components will be provided)
 
Project Types:
  • DIY KIT(Do IT YourSelf KIT) - We are providing only components in this kit for this project
  • DIY KIT with Code & Circuit Connections - Along with the components, you will get the Code and the Circuit Connections file to help you build the project easily.
  • Readymade Breadboard - We are providing fully assembled, tested and ready-made project using plug-n-play jumper wires and breadboard with all the other components, code & circuit diagram.
  • Readymade Soldered - We are providing fully assembled, tested and ready-made project soldered on a PCB with all the other components, code & circuit diagram.
 
Dimensions
  • Approximate PCB size: 15 cm × 10 cm × 3 cm (typical for such projects)
 
Shipping Dimensions
  • 20 cm × 15 cm × 8 cm (including packaging)
 
Weight
  • Actual project hardware weight estimated around 350 grams
 
Estimated Project Weight (including packaging)
  • Approximately 1kg
 
Notes: All the products are made by LearnElectronics India and not for re-sale.

Digitally Controlled Home Automation using DTMF Technology

PriceFrom ₹2,977.00
Quantity

    • Order Processing Time:

      • All project orders are processed within 2-3 business days after payment confirmation.
      • After processing, the development of your project will begin. We require a minimum of 10-15 days to complete and prepare your project for shipment. However, please note that the delivery time is an estimate and may vary depending on project complexity and component availability.

    • Delivery Timeframe:

      • While we strive to deliver your project within the specified timeframe, there is no guaranteed delivery date. The actual delivery time may be shorter or longer depending on various factors, including shipping delays, customs clearance, and unforeseen technical challenges.
      • We will keep you informed of your project's progress and provide updates on the estimated delivery time as needed.

    • Shipping and Delivery Charges:

      • Delivery charges are additional and are not included in the project price. The shipping cost will be calculated at checkout based on your location and the chosen shipping method.
      • Customers are responsible for any customs duties, taxes, or fees that may be applicable in their country.

    • Order Cancellations:

      • Due to the customized nature of our projects, orders can only be canceled within 24 hours of placement. After this period, the order is non-cancellable as work will have already begun.

    • Returns and Refunds:

      • As these are custom-built projects, we do not accept returns or offer refunds unless the project is defective or significantly not as described.
      • If there are any issues with your project upon delivery, please contact us within 7 days to resolve the matter.

    • Technical Support:

      • We provide basic technical support for the first 30 days after delivery to help you set up and operate your project.
      • Extended support and customization services are available at an additional cost.

    • Disclaimer:

      • We are not responsible for delays caused by external factors beyond our control, including but not limited to shipping carrier delays, natural disasters, or government restrictions.
      • By placing an order, you agree to the terms and conditions outlined in this policy.
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