Bharathi Electronics
Bharathi Electronics
Koundampalayam, Coimbatore, Tamil Nadu
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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
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Approx. Price: Rs 250 / PieceGet Latest Price
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.
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    Additional Information:

    • Item Code: BE10054
    • Minimum Order Quantity: 1 Piece
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    IR Object Counter

    IR Object Counter
    • IR Object Counter
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    Approx. Price: Rs 325 / PieceGet Latest Price
    Specifications:

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

    • Item Code: BE10031
    • Minimum Order Quantity: 1 Piece
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    Electronic Bicycle Lock

    Electronic Bicycle Lock
    • Electronic Bicycle Lock
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    Approx. Price: Rs 200 / PieceGet Latest Price
    Specifications:

    • Static Current: ≤15 uA
    • Weight: 2 KG
    • Alarm sound: 117 dB
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    Additional Information:

    • Item Code: BE10024
    • Minimum Order Quantity: 1 Piece
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    Secured Room Access System

    Secured Room Access System
    • Secured Room Access System
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    Approx. Price: Rs 1,400 / PieceGet Latest Price
    Specifications:

    • Applicable Temperature: 20-50
    • Power Support: 4AA alkaline batteries
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    Additional Information:

    • Item Code: BE10057
    • Minimum Order Quantity: 1 Piece
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    Remote Control Circuit

    Remote Control Circuit
    • Remote Control Circuit
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    Approx. Price: Rs 300 / PieceGet Latest Price
    Specifications:

    • Min. Hole Size: 0.1 mm
    • Min. Line Width: 3 Mil
    • Min. Line Spacing: 3 Mil
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    Additional Information:

    • Item Code: BE10006
    • Minimum Order Quantity: 1 Piece
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    Musical Touch Bell

    Musical Touch Bell
    • Musical Touch Bell
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    Approx. Price: Rs 125 / PieceGet Latest Price
    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  
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    Additional Information:

    • Item Code: BE10002
    • Minimum Order Quantity: 1 Piece
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    Anti Bag Snatching Alarm

    Anti Bag Snatching Alarm
    • Anti Bag Snatching Alarm
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    Approx. Price: Rs 275 / PieceGet Latest Price
    Specifications:

    • Frequency: 433 Mhz
    • Distance: 0-25 m
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    Additional Information:

    • Item Code: BE10017
    • Minimum Order Quantity: 1 Piece
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    Fire Alarm System

    Fire Alarm System
    • Fire Alarm System
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    Approx. Price: Rs 125 / PieceGet Latest Price
    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)
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    Additional Information:

    • Item Code: BE10029
    • Minimum Order Quantity: 1 Piece
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    Traffic Signal

    Traffic Signal
    • Traffic Signal
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    Approx. Price: Rs 200 / PieceGet Latest Price
    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.
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    Additional Information:

    • Item Code: BE10127
    • Minimum Order Quantity: 1 Piece
    • Port of Dispatch: coimbatore
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    E-Candle(PT)

    E-Candle(PT)
    • E-Candle(PT)
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    Approx. Price: Rs 200 / PieceGet Latest Price
    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
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    Additional Information:

    • Item Code: BE10128
    • Minimum Order Quantity: 1 Piece
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    Red And Blue Strobe Kit

    Red And Blue Strobe Kit
    • Red And Blue Strobe Kit
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    Approx. Price: Rs 250 / PieceGet Latest Price
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    Additional Information:

    • Item Code: BE60185
    • Minimum Order Quantity: 1 Piece
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    Multiswitch Door Bell With Indicator

    Multiswitch Door Bell With Indicator
    • Multiswitch Door Bell With Indicator
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    Approx. Price: Rs 275 / PieceGet Latest Price
    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).
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      Additional Information:

      • Item Code: BE10035
      • Minimum Order Quantity: 1 Piece
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      Fire Alarm(PT) Interface Module

      Fire Alarm(PT) Interface Module
      • Fire Alarm(PT) Interface Module
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      Approx. Price: Rs 200 / Piece(s)Get Latest Price
      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.
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      Additional Information:

      • Item Code: BE10130
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      NE555 DIY Doorbell Kit

      NE555 DIY Doorbell Kit
      • NE555 DIY Doorbell Kit
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      Approx. Price: Rs 190 / PieceGet Latest Price
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      Additional Information:

      • Minimum Order Quantity: 1 Piece
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      M. Thyagarajan (Sales Manager)
      No. 4/5 A, Union Road, Opposite Kalpana Theater
      Koundampalayam, Coimbatore- 641030, Tamil Nadu, India



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