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Model: 33A    

Solderable DIY project kit for Engineering & Diploma students

Product of choice for Engineering & Diploma students worldwide.

Do-It-Yourself Kit

Rs. 4,459

Rs. 3,211

Includes complete hardware with plain PCB and a pre-programmed controller for building the project. Extensive documentation for project execution including step-by-step instructions for Circuit building, Assembly procedure and Troubleshooting. Thorough understanding from the Problem definition to Circuit Design to Programming, Testing, Troubleshooting and finally building a working hardware project.

Tool Kit


Rs. 350

Includes Digital Multimeter, Soldering Iron, Screw driver, Cutter, to be used with Do-It-Yourself Kit to build the project.

Loaded and Tested PCB


Rs. 1,469

Rs. 1,176

Pre-soldered and tested PCB. Choose this option only if you are short on time. Only works along with the Do-It-Yourself Kit. (Can be purchased later)

Total Rs. 0

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he project is designed to operate an electric bell number of times as required in an institution. It overcomes the difficulties of switching the bell ON/OFF manually. This proposed has an inbuilt real time clock (RTC) to keep tracking the time and thus to switch ON/OFF the load accordingly.

The project uses a real time clock (RTC) interfaced to a microcontroller of 8051 family. While the set time equals to the real time, then microcontroller gives command to the corresponding relay to turn ON the bell and then another command to switch OFF as per the program.

Multiple ON/OFF time entry is the biggest advantage with this project. A matrix keypad helps entering the time. A 7-sement display is interfaced to the microcontroller to display time.

Further the project can be enhanced by interfacing a GSM modem to the existing project so that the complete control of the bell can be done by sending an SMS to the control unit.

Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Auto Ringing Timer for 5 periods.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
Automatic Bell System for Institutions
Hardware Requirements
  • 8051 series Microcontroller
  • 7-Segment Display
  • RTC
  • Keypad
  • Relay
  • Relay Driver
  • LED
  • Crystal
  • Transformer
  • Diodes
  • Regulator
  • Capacitors
  • Resistors
  • Bell
Software Requirements
  • Keil compiler
  • Language: Embedded C or Assembly
Q & A
Q:  How to set the time?
A:  A numeric keypad is provided to set the time
Q:  What is RTC?
A:  RTC stands for Real Time Clock, It provides timing reference along with memory back up.
Q:  Where is it applicable?
A:  It is applicable in colleges, schools, hostels etc.
Q:  Can I replace calling bell with any other alarm?
A:  Yes, a calling bell with wattage limited to 200W can be used.
Average Rating
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Showing 4 of 4 reviews
Nitish Malhotra, on 28th April, 2013, 03:47 AM

Searched in Google and got the information. Not compared anything; though everything is getting is one place and that too reasonable way. Most attractive. Packing is good. All things and description is good. Everything is clear in website. No problem and got on time/ nothing to say.

Vamsi Krishna, on 9th November, 2012, 10:46 PM

I have taken the readymade kit and the kit is working very well. All the given soft components and the audio visuals are added an advantage of how to deal the project individually. Thanks to Edgefx Technologies.

sukesh , on 8th November, 2012, 11:13 PM

I have very impressed with the output of this project and the way that it designed for the engineering students.

Amani, on 8th November, 2012, 11:07 PM

The given audio visuals are very effective and one can easily understand the step by step procedure to be followed to do the project. The hardware components are also working very well. Thanks to Edgefx Team.

Rating Breakdown (4 Reviews)

Tool kit cannot be purchased individually.


Edgefx Technologies Pvt. Ltd.,
Plot No. 105, 3rd Floor,
Liberty Plaza, Himayathnagar,
Hyderabad - 500029,
Telangana, India
© 2012 Edgefx Technologies Pvt Ltd. All Rights Reserved