Bharathi Electronics
Bharathi Electronics
Kavundampalayam, Coimbatore, Tamil Nadu
SEND SMS
SEND EMAIL

Do-it-your-self Projects

We have varity of hobby electronics projects for students & engineers .Electronics kit are supplied with set of components , PCB board & work instruection . All the projects are tested verified design.
Useful for students & engineers to understand the conceots & feel the electronics .

Sunset Lamp Kit

Sunset Lamp Kit
  • Sunset Lamp Kit
Get Best Quote
Approx. Price: Rs 250 / Piece
The circuit uses popular timer IC NE555 as a Schmitt trigger to give the bistable action. The set and reset functions of the comparators within the NE555 are used to give the instantaneous action. The upper threshold comparator of IC1 trips at 2/3Vcc, while the lower trigger comparator trips at 1/3Vcc.The inputs of both the threshold and the trigger of NE555 are tied together and connected to the voltage divider formed by LDR1 and
VR1. The voltage across LDR1 depends on the light intensity.
In daylight, LDR1 has low resistance and the input voltage to the threshold comparator goes above 2/3Vcc and its output becomes zero, and the lamp remains off.
At sunset, the resistance of LDR1 increases, and the voltage at the input of the threshold comparator decreases below 2/3Vcc and that of the trigger comparator goes below 1/3Vcc. As a result, the outputs of threshold and trigger comparators go high. Thus it completes the power supply to the lamp through triac1. LED1 glows to indicate the high output state.
    Request
    Callback


    Additional Information:

    • Item Code: BE10054
    • Minimum Order Quantity: 1 Piece
    Yes! I am Interested

    Cash Box Guard

    Cash Box Guard
    • Cash Box Guard
    Get Best Quote
    Approx. Price: Rs 225 / Piece(s)
    Most thefts happen after midnight when people enter the second phase of sleep called‘paradoxical sleep.’ Here is a smart security circuit for your cash box that  thwarts the theft attempt by activating an emergency beeper. The circuit can also be used to trigger any externalburglar alarm unit.

    The cash box guard is built with IC4060 .
    Request
    Callback


    Additional Information:

    • Item Code: BE10053
    • Minimum Order Quantity: 1 Piece(s)
    Yes! I am Interested

    Smart Emergency Light

    Smart Emergency Light
    • Smart Emergency Light
    Get Best Quote
    Approx. Price: Rs 250 / Piece
    Now you need not fear dark nights when power breaks down. Here’s a white LED based emergency light that automatically turns on when mains power supply fails. The circuit consists of power supply, battery charger and switching sections.

     
      Request
      Callback


      Additional Information:

      • Item Code: BE10052
      • Minimum Order Quantity: 1 Piece
      Yes! I am Interested

      Simple Code Lock

      Simple Code Lock
      • Simple Code Lock
      Get Best Quote
      Approx. Price: Rs 225 / Piece(s)
      The circuit described here is of an electronic combination lock for daily use. It responds only to the right sequence of four digits that are keyed in remotely.

      The circuit uses IC4013.
      Operating voltage - 12V DC
      Request
      Callback


      Additional Information:

      • Item Code: BE10043
      • Minimum Order Quantity: 1 Piece(s)
      Yes! I am Interested

      Touch Sensitive Switch

      Touch Sensitive Switch
      • Touch Sensitive Switch
      Get Best Quote
      Approx. Price: Rs 175 / Piece

      Things which you will learn:

      *Use to transistor for switching applications.

      *Use of SPDT relay switches to operate appliances.    

      Product Description

      Build a Touch Sensitive Switch and change the way you switch on/off your home appliances.
      Now with this circuit no more mechanical switching is needed. Just touch and Whoop the Appliance is ON!

      Working:
      The Touch Sensitive Switch makes use of 50Hz hum present in the human body.
        Request
        Callback


        Additional Information:

        • Item Code: BE10048
        • Minimum Order Quantity: 1 Piece
        Yes! I am Interested

        Magic Eye

        Magic Eye
        • Magic Eye
        Get Best Quote
        Approx. Price: Rs 125 / Piece(s)
        The Magic Eye is a versatile electronic eye that can be used for a variety of applications like a burglar alarm, smoke detector or an automatic guest indicator. All these applications make use of the Light Dependent Resistor (LDR) which is installed and implemented differently in each case. Number of ICs used: 1.

        CIRCUIT USES IC 555 
          Request
          Callback


          Additional Information:

          • Item Code: BE10034
          • Minimum Order Quantity: 1 Piece(s)
          Yes! I am Interested

          Low Cost Transistorized Intercom

          Low Cost Transistorized Intercom
          • Low Cost Transistorized Intercom
          Get Best Quote
          Approx. Price: Rs 200 / Piece
          Specifications:

          • Dimensions: 58*105*38 mm
          • Storage Channel: 128
          Request
          Callback


          Additional Information:

          • Item Code: BE10033
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          IR Object Counter

          IR Object Counter
          • IR Object Counter
          Get Best Quote
          Approx. Price: Rs 325 / Piece
          Specifications:

          • Input sensitivity: 25 nVram (-20 dBm)
          • Max. input level: 1 Vrms (+13dBm)
          • Damage level: 3 Vram (+23dBm)
          Request
          Callback


          Additional Information:

          • Item Code: BE10031
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Digital Dice

          Digital Dice
          • Digital Dice
          Get Best Quote
          Approx. Price: Rs 200 / Piece
          Specifications:

          • Forward Voltage: 1.9-2.3 V
          • Operating temperature: 35- 85
          • Luminous Intensity: 50-70 Mcd
          Request
          Callback


          Additional Information:

          • Item Code: BE10025
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Electronic Bicycle Lock

          Electronic Bicycle Lock
          • Electronic Bicycle Lock
          Get Best Quote
          Approx. Price: Rs 200 / Piece
          Specifications:

          • Static Current: ≤15 uA
          • Weight: 2 KG
          • Alarm sound: 117 dB
          Request
          Callback


          Additional Information:

          • Item Code: BE10024
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Burglar Alarm System

          Burglar Alarm System
          • Burglar Alarm System
          Get Best Quote
          Approx. Price: Rs 125 / Piece
          Specifications:

          • Dimension/CM: 25.5*28.5*7 cm
          • Radio Frequency: 433 MHz, encrypted
          Request
          Callback


          Additional Information:

          • Item Code: BE10022
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Secured Room Access System

          Secured Room Access System
          • Secured Room Access System
          Get Best Quote
          Approx. Price: Rs 1,400 / Piece
          Specifications:

          • Applicable Temperature: 20-50
          • Power Support: 4AA alkaline batteries
          Request
          Callback


          Additional Information:

          • Item Code: BE10057
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Power Supply Digital Counter

          Power Supply Digital Counter
          • Power Supply Digital Counter
          Get Best Quote
          Approx. Price: Rs 300 / Piece
          Specifications:

          • Size: W 72 X H72 mm
          • Power Supply: 90-250 VAC 50/60 HZ
          Request
          Callback


          Additional Information:

          • Item Code: BE10060
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Power Supply Failure Alarm

          Power Supply Failure Alarm
          • Power Supply Failure Alarm
          Get Best Quote
          Approx. Price: Rs 225 / Piece
          Specifications:

          • Anode of output power supply: +12 V
          • Dimension: 88 x 60 x 25 mm
          Request
          Callback


          Additional Information:

          • Item Code: BE10020
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          LED Running Light Circuit

          LED Running Light Circuit
          • LED Running Light Circuit
          Get Best Quote
          Approx. Price: Rs 150 / Piece
          Specifications:

          • Input Voltage(V): 12 V
          • Working Temperature: 200 - 600 C 
          • CRI (Ra>): 85
          Request
          Callback


          Additional Information:

          • Item Code: BE10001
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Bit Code Lock for Appliance Switching

          Bit Code Lock for Appliance Switching
          • Bit Code Lock for Appliance Switching
          Get Best Quote
          Approx. Price: Rs 300 / Piece
          Specifications:

          •  Operating Temperature: 30+70
          •  Transmitting Frequency: 315 MHz/433 MHz
          •  Remote Control Distance: 100 m/300 ft (theoretically)
          Request
          Callback


          Additional Information:

          • Item Code: BE10016
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Door Guard

          Door Guard
          • Door Guard
          Get Best Quote
          Approx. Price: Rs 205 / Piece
          Specifications:

          • Size: L37.5 X W 38.5 X H 27 CM
          • Weight: 0.06 kg
          Request
          Callback


          Additional Information:

          • Item Code: BE10010
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Remote Control Circuit

          Remote Control Circuit
          • Remote Control Circuit
          Get Best Quote
          Approx. Price: Rs 300 / Piece
          Specifications:

          • Min. Hole Size: 0.1 mm
          • Min. Line Width: 3 Mil
          • Min. Line Spacing: 3 Mil
          Request
          Callback


          Additional Information:

          • Item Code: BE10006
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Automatic Night Lamp Dimmer

          Automatic Night Lamp Dimmer
          • Automatic Night Lamp Dimmer
          Get Best Quote
          Approx. Price: Rs 200 / Piece
          Specifications:

          • Lamp Luminous Flux(LM): 350 LM
          • Working Temperature: 20-50oC
          • Input Voltage(V): 220 V
          Request
          Callback


          Additional Information:

          • Item Code: BE10066
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Long Range FM Transmitter

          Long Range FM Transmitter
          • Long Range FM Transmitter
          Get Best Quote
          Approx. Price: Rs 350 / Piece
          Specifications:

          •  Frequency: 88.1-107.9 MHZ
          •  Separation: ≥60 DB
          •  Operating Voltage: 4.2 V 130 MV
          Request
          Callback


          Additional Information:

          • Item Code: BE10082
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Smart Cellphone Holder

          Smart Cellphone Holder
          • Smart Cellphone Holder
          Get Best Quote
          Approx. Price: Rs 250 / Piece(s)
          This smart cellphone holder makes sure that you don’t forget to carry your mobile phone. Fitted in the car, it keeps searching for the mobile phone within the holder using infrared (IR) rays and alerts you through a flashing LED when it doesn’t find one.

          Things Which you will learn:

          *Application of the LM555 timer IC.
          *Application of the 2N5777 phototransistor.
          *Application of transistors for switching purposes.
          Request
          Callback


          Additional Information:

          • Item Code: BE10044
          • Minimum Order Quantity: 1 Piece(s)
          Yes! I am Interested

          Musical Touch Bell

          Musical Touch Bell
          • Musical Touch Bell
          Get Best Quote
          Approx. Price: Rs 125 / Piece
          We are engaged in offering Musical Door Bells, these musical door bells are available in different tunes for our valuable clients to meet the demands of clients. These musical bells are made of higher quality bronze alloys.

          Specifications:

                                                         
          • Power Output: 18 V
          • Resolution: 420 TVL
          • Temperature: 20-70 °C  
          Request
          Callback


          Additional Information:

          • Item Code: BE10002
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Anti Bag Snatching Alarm

          Anti Bag Snatching Alarm
          • Anti Bag Snatching Alarm
          Get Best Quote
          Approx. Price: Rs 275 / Piece
          Specifications:

          • Frequency: 433 Mhz
          • Distance: 0-25 m
          Request
          Callback


          Additional Information:

          • Item Code: BE10017
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Automatic Bell

          Automatic Bell
          • Automatic Bell
          Get Best Quote
          Approx. Price: Rs 225 / Piece
          Specifications:

          • Supply Voltage: 3.0-4.5 V
          • Forward Voltage: 10-28 MV
          • Weight: 219.8 Gm
          Request
          Callback


          Additional Information:

          • Item Code: BE10018
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Low Battery Indicator Kit

          Low Battery Indicator Kit
          • Low Battery Indicator Kit
          Get Best Quote
          Approx. Price: Rs 200 / Piece
          Specifications:

          • Variable Voltage: 2.8-4.2 V
          • Battery Capacity: 650/900/1100 Mah
          Request
          Callback


          Additional Information:

          • Item Code: BE10019
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Smoke Detector Alarm

          Smoke Detector Alarm
          • Smoke Detector Alarm
          Get Best Quote
          Approx. Price: Rs 200 / Piece
          Specifications:

          • Alarm Current:  <10mA
          • Alarm Volume: >85DB
          • Working Temperature: -10 °C + 50 °C
          • Working Humidity: ≤95 % (40±2 °C)
          Request
          Callback


          Additional Information:

          • Item Code: BE10005
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Fire Alarm System

          Fire Alarm System
          • Fire Alarm System
          Get Best Quote
          Approx. Price: Rs 125 / Piece
          We are manufacture and exporter of Fire Alarm Systems, a higher grade raw material used in this alarm. The fire alarm systems sense if there are any dust or smoke in environment and ring. We offer it on market leading prices.

          Specifications:


          • Wireless frequency: 315 MHz/433 MHz
          • Power Requirements: AC 220V 50Hz/60 Hz
          • GSM Frequency: 900/1800 MHz (standard)
          Request
          Callback


          Additional Information:

          • Item Code: BE10029
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Knock Alarm

          Knock Alarm
          • Knock Alarm
          Get Best Quote
          Approx. Price: Rs 150 / Piece
          Specifications:

          • Defence Rate:  <1%
          • Voltage: DC 12V
          Request
          Callback


          Additional Information:

          • Item Code: BE10032
          • Minimum Order Quantity: 1 Piece
          Yes! I am Interested

          Multiswitch Door Bell With Indicator

          Multiswitch Door Bell With Indicator
          • Multiswitch Door Bell With Indicator
          Get Best Quote
          Approx. Price: Rs 275 / Piece
          Here’s the circuit of a multi-switch input musical doorbell (shown in Fig.1). The circuit is built around the popular and less expensive quad D-latch CD4042B (IC1).
            Request
            Callback


            Additional Information:

            • Item Code: BE10035
            • Minimum Order Quantity: 1 Piece
            Yes! I am Interested

            Musical Door Bell

            Musical Door Bell
            • Musical Door Bell
            Get Best Quote
            Approx. Price: Rs 125 / Piece
            Here is a musical call bell that can be operated by just bridging the gap between the touchplateswith one’s fingertips. Thus there is no need for a mechanical ‘on’/‘off’ switch because the touch-plates act as a switch. Other features include low cost and low power consumption. The bellcan work on 1.5V or 3V, using one or two pencil cells, and can be used in homes and offices.Two transistors

            The circuit uses ICUM66. 
              Request
              Callback


              Additional Information:

              • Item Code: BE10037
              • Minimum Order Quantity: 1 Piece
              Yes! I am Interested

              Musical Hold On For Telephone Kit

              Musical Hold On For Telephone Kit
              • Musical Hold On For Telephone Kit
              Get Best Quote
              Approx. Price: Rs 125 / Piece
              Specifications:

              • Power: 210-500 W
              • Operating Range: 300 meters
              Request
              Callback


              Additional Information:

              • Item Code: BE10038
              • Minimum Order Quantity: 1 Piece
              Yes! I am Interested

              Parallel Telephone Ringer

              Parallel Telephone Ringer
              • Parallel Telephone Ringer
              Get Best Quote
              Approx. Price: Rs 150 / Piece

              Product Description

              The Parallel Telephone Ringer serves as an external telephone ringer connected in parallel to an existing telephone instrument.

              Summary

              A simple circuit based on the ring generator IC BEL1240 to indicate the ringing of the phone in another room where the telephone is not present. The Parallel Telephone Ringer provides indication of a telephone ringing in another room and cannot be heard otherwise. No. of ICs used: 1

               Things you will learn:

              *Application of the ring generator IC BEL1240

              *Concepts and implementation of RC Circuits

              Request
              Callback


              Additional Information:

              • Item Code: BE10039
              • Minimum Order Quantity: 1 Piece
              Yes! I am Interested

              PC Based Timer

              PC Based Timer
              • PC Based Timer
              Get Best Quote
              Approx. Price: Rs 225 / Piece
              Timers are very useful both for industrial applications and household appliances. Here isa PC-based timer that can be used for controlling the appliances for up to 18 hours. For control, the timer uses a simple program and interface circuit. It is very cost-effective and efficient for those who have a PC at workplace or home. The tolerance is ±1 second.
              Request
              Callback


              Additional Information:

              • Item Code: BE10040
              • Minimum Order Quantity: 1 Piece
              Yes! I am Interested

              Power Failure Indicator

              Power Failure Indicator
              • Power Failure Indicator
              Get Best Quote
              Approx. Price: Rs 200 / Piece(s)
              Product Description

              A simple power failure detection using the property of Resistance dependent on the light .Build this and get informed about power failure or blown fuses

              Working:
              The heart of the Power Failure Indicator is a Light Dependent Resistor (LDR) whose resistance is inversely proportional to the intensity of light falling on it. In the circuit, a zero-watt bulb is connected to the 230V AC mains and is placed in the vicinity of the LDR. When the bulb is glowing i.e. the AC supply is ON, the LDR offers a high resistance and the input to the active-low Reset Pin (Pin4) remains LOW. This causes the output (at Pin3) of the NE555 to go LOW and the loudspeaker remains OFF. When the bulb goes OFF i.e. the AC supply has failed, the resistance offered by the LDR decreases and the reset pin of the NE555 gets disabled. The output of the multi-vibrator goes high and the loudspeaker sounds an alarm, thereby indicating that the fuse is blown or the AC supply has failed.

              Things which you will learn:
              *Application of LDR as a sensor.
              *Application of the NE555 in the astable mode of operation. 

              Request
              Callback


              Additional Information:

              • Item Code: BE10041
              • Minimum Order Quantity: 1 Piece(s)
              Yes! I am Interested

              Wireless TV Headphone

              Wireless TV Headphone
              • Wireless TV Headphone
              Get Best Quote
              Approx. Price: Rs 175 / Piece
              This circuit allows you to watch your favourite TV programmes late at night without disturbing other familymembers
              Request
              Callback


              Additional Information:

              • Item Code: BE10050A
              • Minimum Order Quantity: 1 Piece
              Yes! I am Interested

              Traffic Signal

              Traffic Signal
              • Traffic Signal
              Get Best Quote
              Approx. Price: Rs 200 / Piece
              This is a simple circuit to build a traffic signal using an IC 555 - Timer and IC CD4017 – Decade Counter. In a Traffic light there are three different color LED which are Green (Go), Yellow (Caution) and Red (Stop). Here IC 555 is used in Astable Multivibrator Mode. The timing of signal can be adjusted by varying potentiometer.
              Request
              Callback


              Additional Information:

              • Item Code: BE10127
              • Minimum Order Quantity: 1 Piece
              • Port of Dispatch: coimbatore
              Yes! I am Interested

              Fire Alarm(PT) Interface Module

              Fire Alarm(PT) Interface Module
              • Fire Alarm(PT) Interface Module
              Get Best Quote
              Approx. Price: Rs 200 / Piece(s)
              This is an easy to use fire alarm. The circuit uses an NTC as a temperature sensor. As this temperature around NTC increases its resistance decreases. A potentiometer is used to provide a reference voltage. As the temperature around NTC increases, a voltage drop occurs which drives a transistor in turn activating the buzzer & glowing the LED.
              Request
              Callback


              Additional Information:

              • Item Code: BE10130
              Yes! I am Interested

              E-Candle(PT)

              E-Candle(PT)
              • E-Candle(PT)
              Get Best Quote
              Approx. Price: Rs 200 / Piece
              This is a simple circuit to build a Electronic Candle using a transistor and condenser mic. A condenser mic is used to sense puff. An E-Candle simulates a candle lit. To light the candle you have to press a button and to blow it off you have to puff over the mic
              Request
              Callback


              Additional Information:

              • Item Code: BE10128
              • Minimum Order Quantity: 1 Piece
              Yes! I am Interested
              X
              Looking for “Do-it-your-self Projects”?


              Reach Us
              M. Thyagarajan (Proprietor)
              No. 4/5 A, Union Road, Opposite Mahindra First Choice Service Centre Kavundampalayam
              Coimbatore- 641030, Tamil Nadu, India


              Call Us

              Send E-mail

              Send SMS