Project Idea:
The project enables remote control of AC power applied to a load using an Android device via Bluetooth. By controlling the firing angle of SCRs through 8051 microcontroller programming, the project demonstrates efficient AC power control for applications like speed control of induction motors, dimming of lights, and smart energy management.
Project Description:
This project uses an 8051 microcontroller to regulate AC power delivered to a connected load by adjusting the firing angle of thyristors (SCRs). Commands are sent from any Android device through a custom app or Bluetooth-based interface. The system detects the AC mains zero-crossing point using a comparator, and the microcontroller introduces the required delay to control power output via an opto-isolated SCR driver circuit. For demonstration, a lamp is used, where brightness variation simulates motor speed control.
The solution is user-friendly, low-cost, and highly reliable compared to other AC control methods, making it a practical choice for academic projects and practical applications.
Components:
8051 Microcontroller
Bluetooth Module
Resistors
Capacitors
Transistors
Cables and Connectors
Diodes
PCB/Breadboard
LEDs
Transformer/Adapter
Push Buttons
Switch
ICs and IC Sockets
Lamps (for load demonstration)
Software Specifications:
Keil µVision IDE
Embedded C Programming
Project Features:
Wireless control via Android device
AC load management through SCR firing angle control
Zero-crossing detection for precise timing
Opto-isolator interface for safe triggering
Simulation of induction motor speed control with lamp intensity variation
Reliable and cost-effective method for AC power control
Simple demonstration and easy to operate
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:
Approx. 18 cm x 15 cm x 8 cm
Shipping dimensions:
length: 20cm
width: 20cm
height: 10cm
Weight:
Approx. 850 g
estimate project weight: 1kg
Notes: All the products are made by LearnElectronics India and not for re-sale.
Android Controlled AC Power Control
-
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.
-





