S2* MELODY GENERATOR Melodies with double sound sources, uses the built-in digital envelope circuit.

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Bertina Skinner
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1 educational electronic kits KIT PRICE LIST KIT NAME OF KIT NO SOUND EFFECTS S1 16 TUNE MUSICAL DOOR-BELL Gives 16 different tunes by pressing switch sixteen times. PH.No KIT PRICE 190/- S2 MELODY GENERATOR Melodies with double sound sources, uses the built-in digital envelope circuit. S3 S4 S5 S6 S7 S8 L1 L2 L3 L4 L5 L6 L7 L8 L9 TOUCH SENSITIVE MUSICAL BELL Gives different melody sound for every touch ELECTRONIC HARMONIUM Simple circuit generates 15 different notes. THREE TUNE MUSICAL BELL Simple low cost melody project. MULTI-TONE SIREN Select Police, Ambulance, Fire & Staccato siren with 8W amp. O/P POLICE / AMBULANCE SIREN Using 2 No. 555 ICs, generates Police/ Ambulance siren. 20 TO 30 SEC. VOICE RECORDING / PLAYBACK (APR9301) A Re-recordable voice chip with non volatile memory gives to store 20-30sec massage with playback facility. LIGHT EFFECTS FOUR CHANNEL LED RUNNING LIGHT A series of LED s flashing effect sequentially LED WHEEL EFFECT Flashing of LEDs produces wheel effect. LED CIRCLE EFFECT Flashing of LEDs produces circle effect LIGHT DIMMER Triac dimmer used to control lamp up to 1000W WELCOME LED DISPLAY BOARD Design using 5/3mm LEDs which, flashes each character one after another POWER SAVER LED LAMP Used as a night lamp, which consumes only 0.5W NOVEL LIGHT EFFECT A bunch of LEDs flashes, which gives novel light effect. LED DANCING LIGHT Simple 6 LEDs multivibrator using two transistor, which gives dancing light effect. TOUCH DIMMER Simply touching this touch dimmer you can increase the light intensity of incandescent lamps in four steps. TIMERS, CLOCKS AND COUNTERS 150/- 210/- 180/- 150/- 340/- 300/- 240/- 950/- 250/- 400/- 170/- T1 T2 T3 SHORT DELAY TIMER Timer with 1 to 100 sec delay. TIMER WITH BUZZER INDICATOR ON/OFF Timer with audible warning from 1 to 100 min delay DIGITAL STOPWATCH Counts maximum 99.9 sec and minimum 0.1sec on 7-segment display 250/- 950/-

2 T4 T5 T6 T7 AUTO ON/OFF TIMER Widely used to switch ON/OFF devices with settable timing from 3 to 30min AUTO OFF TIMER WITH ALARM Used to switch OFF a device after a particular setting time from 3 to 30 min. TWO DIGIT UP/DOWN COUNTER Used as a clock generator, frequency meter etc. THREE DIGIT UP/DOWN COUNTER Used as a clock generator, frequency meter etc. T8 COOLER TIMER Timer with ON time and OFF time setting for cooler/pump. T9 LOGARITHMIC TIMER This timer shows periods of 5 to 15 min using ten LED display. T10 TWO DIGIT COUNTER Count up to 99 laps on 7-segment display using LDR. T11 SOUND OPERATED TIMER An electronic switch operated by a clap with 2 to 10 min delay. T12 SETTABLE ON/OFF LONG DURATION TIMER Can be set ON time & OFF time separately with relay O/P T13 BCD TO 7 SEGMENT DISPLAY Useful kit for study of 7447 & display driver logic. T14 WASHING MACHINE TIMER Select washing time bet.2 1/2 to 30 min.& buzzer when time laps. DOMESTIC & INDUSTRIAL 1100/- 330/- 330/- 780/- 550/- D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 LISTENING BUG Used to listening voice the people sitting in the nearby room. CLAP SWITCH ON/OFF switch operated by a clap. LIQUID LEVEL INDICATOR Indicates the level of water on 7-segment display. LIQUID LEVEL INDICATOR WITH ALARM Indicates the level of water on 7-segment display with audible warning when level is full. TWO WAY INTERCOM Two-way communication, with self-ringing facility. INFRARED REMOTE SWITCH ON/OFF switch by remote from 10mtr distance. ROOM AIR FRESHENER Works on the principle of ionization, which, helps to remove polluted air. METAL DETECTOR Detects the presence of metal by giving audible warning. 5 DIGIT CODE LOCK Used for security purpose with relay driver INFRARED BURGLAR ALARM Gives alarm on interruption of IR beam. INFRARED LIGHT GATE ON/OFF by a transmitter and receiver. LIGHT OPERATED SWITCH Simple light operated switch with relay driver using LDR. MUSICAL ENTRANCE ALARM Musical light operated burglar alarm. FIRE ALARM Raises an alarm when temperature increases due to fire. TWILIGHT SWITCH Light dependent switch, which automatically turns ON when it gets dark. ULTRASONIC DETERRENT Used as a mosquito repellent and also to run away nasty rodents. ULTRASONIC RADAR Used as an obstacle detector using ultrasonic frequency. TWO IN ONE ELECTRONIC GAME It incorporates electronic Roulette wheel and indoor cricket. GRIPOSCOPE Indicates your muscle strength,using ten LED display. ELECTRONIC LUCKY NUMBER Try your Lucky No. on 7-segment display. 170/- 150/- 400/- 470/- 680/- 650/- 650/- 220/- 280/- 180/- 220/ /- 430/-

3 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D31 D32 D33 D34 D35 D36 D37 D38 D39 D40 D41 D42 D43 D44 D45 D46 D47 D48 D49 D50 D51 QUIZMASTER Priority indicator, for quiz, for 4 players. TOILET LAMP CONTROLLER Makes the lamp OFF after few seconds, which is settable. MAIL INDICATOR WITH WARNING Gives an alarm,when mail arrives in mailbox. DIGITAL TANK LEVEL INDICATOR Indicates level of water,on two 7-segment display. FOUR CHANNEL ON/OFF CONTROL ON/OFF four channels,with All ON and All OFF facility. SOIL MOISTURE CONTROL Controls the soil moisture, content for plants. RAIN ALARM Gives an alarm when rail falls. TEMPERATURE SWITCH Switches ON the device when temperature rises. SUMP TANK CONTROLLER Motor is OFF when water goes below low level. OVERHEAD TANK CONTROLLER Motor is ON when tank is empty and becomes OFF when it is full. ROOM TEMPERATURE INDICATOR Indicates the nature of temperature using ten LED display. ELECTRONIC FLOAT Used as a division indicator or level indicator using ten LEDs. TWO TANK AUTO ON/OFF CONTROLLER Control Sump as well as Overhead Tank. SMOKE DETECTOR Indicates the presence of smoke by giving alarm. MODERN TRAFFIC LIGHT SIGNAL Consists of Four poles with Red, Green, Yellow and Side-Greem signal at each pole. TOUCH SWITCH ON/OFF switch with every touch. TOUCH SENSITIVE ALARM Used as an intruder alarm. SIMPLE TRAFFIC LIGHT Understand the function of traffic light with indication of 3 LED s. ELECTRONIC DICE An electronic substitution for ordinary dice using two IC s. INFRARED OBSTACLE DETECTOR I/R transmitter & receiver to detect the obstacle from two mtrs. ELECTRONIC TOSS-UP It indicates HEAD or TAIL & NO TOSS using three Ics. ELECTRONIC ROULETTE WHEEL Casino game, select 1 to 16 number place & win the bet. EARTHQUAKE/VIBRATION ALARM Converts mechanical vibration into electrical vibration and gives alarm SOLAR MOBILE CHARGER Useful kit to charge your mobile by solar energy WIRELESS LISTENING BUG Used to listening voice the people sitting in the nearby room on fm radio. INFRARED COMMUNICATION I/R audio communication through transmitter and receiver up to a distance 10 mtres LASER RAYS COMMUNICATION Laser ray audio communication through transmitter and receiver up to a distance 30mtres LOW POWER INVERTER Low power square wave inverter, 12V DC to 230V AC, using mosfet,up to 100W load ALCOHOL BREATH ANALYZER Alcohol detection, with LED display intensity meter. AUTOMATIC EMERGENCY LIGHT Automatic emergency LED lamp with day light sensing. INTELLIGENT GUARD PIR (Passive Infra-Red) detector will detect movement of human automatically 550/- 470/- 1190/- 670/- 470/- 250/- 1050/- 550/ / /- 1190/ /-

4 D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 when intruder passes through the detection area & gives alarm. Use as a burglar alarm. DOOR KNOCK MUSICAL ALARM Piezoelectric element sense door knock and gives melodious sound. MOBILE BUG Sense the presence of an activated mobile from few distance & gives alarm. MORNING ALARM WITH NIGHT LAMP Sensing darkness and light in the room & gives melodious alarm when sun rises. SHADOW ALARM Detect moving shadow on LDR & get melodious sound alarm. SPEED CONTROL OF DC MOTOR Control any speed of DC motor using 555 & Mosfet. ULTRASONIC SOUND BURGLAR ALARM Gives alarm on interruption of Ultrasonic sound beam. ATOMATIC NIGHT LAMP CUM EMERGENCY LIGHT Sensing darkness and LED light in the room with battery backup. ANTI-THEFT ALARM SYSTEM Suitable alarm device to the Door & Window when its try to open. CLAP OPERATED STAIRCASE LIGHT Useful device for staircase light ON by clap & Off as per delay setting. HEART-BEAT MONITOR See the heart rate pulses on LED by sensing blood flow through fingertip. PRESSURE-SENSITIVE ALARM Change in capacitance by pressing foam capacitor gives alarm, can be use as burglar alarm LPG GAS LEAKAGE DETECTOR It detects vapors of liquefied petroleum gas anywhere between 200 and 10,000 ppm (Parts Per Million) WHISTLE RESPONDER Beeps when hears your whistle 360/- 360/- 550/- 350/- POWER SUPPLY & MISCELLANEOUS P1 BATTERY ELIMINATOR Gives variable output voltage of 2.5 to 15V P2 + 5V TO +15V REGULATED POWER SUPPLY Gives regulated output of +5V to +15V P3 ± 5V TO ± 15V DUAL POWER SUPPLY Gives regulated Dual output of ±5V to ±15V. P4 VARIABLE REGULATED POWER SUPPLY Variable output is adjustable from 1.6 volts to about 30 volts using ic LM317. P5 BRIDGE RECTIFIER Simple rectifier circuit for AC to DC conversion. P6 AUTO RESET OVER/ UNDER MAINS VOLTAGE CUT- OUT This over/under voltage cut-out will save your costly electrical and electronic appliances from the adverse effects of very high and very low mains voltages. P7 LEAD ACID BATTERY CHARGER 12V/7Ah OR 6V/4.5Ah X2 Battery Charge by this ckt with charging indication. AUDIO, VIDEO AND RF 240/- 370/- 70/- A1 A2 A3 A4 A5 A6 A7 20W AUDIO AMPLIFIER 20W Hi-Fi mono amplifier using amplifier IC W AUDIO AMPLIFIER (STEREO) 20W Hi-Fi stereo amplifier using low cost amplifier IC. FM TRANSMITTER Used for wireless listening to TV sound or a short range repeater FM RECEIVER Compact tunable 88 to 108 MHz with audio amplifier. FM RADIO JAMMER Used to jam the radio frequency and transmits audio signal. CORDLESS FM MIKE Achieve 10-20mtr receptions from transmitter. PHILIPS UNIVERSAL PREAMPLIFIER Excellent 4ransistorized pre amplifier with V/B/T and Balance control for Hi-Fi Stereo. 240/- 530/- 600/- 270/-

5 A8 A9 A10 A11 A12 A13 M1 M2 M3 M4 M5 M6 M7 M8 TDA 2030 BRIDGE 34W AMPLIFIER Class AB amplifier provides high O/P current and very low harmonic distortion with short circuit protection. PHILIPS 40+40W AMPLIFIER Transistorised Hi-Fi amplifier with short ckt protection & 40W RMS, O/P. 100W POWER AMPLIFIER Using Darlington transistors 160W MOSFET HIGH POWER AMPLIFIER A quality 160-Watt Hi-Fi Audio Output Amplifier FM RADIO Compact, Gang capacitor tunable 88 to 108 MHz with 20 Watt. Audio amplifier. WIRELESS REMOT CONTROL ROBOT KITS RF Transmitter & RF Receiver pair to transfer the coded data 433Mhz TEST & MEASUREMENT 555IC TESTER Used to test most widely used 555IC. SEMICONDUCTOR TESTER Used to test diodes, transistors and also to test the continuity. LED VOLTMETER FOR BATTERY The ten LED s are used to indicate the status of battery. TEMPERATURE MONITOR Miniature Temperature controller device up to 100 C. INFRARED REMOTE TESTER Used to test TV remotes. SOUND INDICATOR Frequency of sound indicated on LED display. LCD THERMOMETER Shows temperature from -50 to 150 C with accuracy of 1. TACHOMETER Measures the rotational speed of a shaft of motor & shows RPS on a 2 digit display.(revolutions per second) COMPUTER, MICROPROCESSOR AND MICROCONTROLLER 650/- 1400/- 1960/- 480/- 1250/- 220/- 440/- 480/- 1890/- 750/- C1 PC BASED AUTOMATED SCHOOL BELL WITH COUNTER 3100/- Gives Bell after 45 min with interval of 30 min. Also count time interval (Program written in C language) C2 PC BASED THREE DIGIT BANK TOKEN DISPLAY 3890/- Display the Token No. which is entered through keyboard. (Program written in C language) C3 PC BASED ON/OFF TIMER 1150/- Makes the circuit ON and OFF according to the ON time and OFF time given through program. (Program written in C language) C4 PC BASED FOUR CHANNEL HOME AUTOMATION CONTROLLER 3 Controls up to 4 Channels with Equipment No. given through program. (Program written in C language) C5 PC BASED UP/DOWN COUNTER 2 Counts up/down with position given by program C6 STEPPER MOTOR DRIVER CARD (SINGLE MOTOR) Opto-isolation Interface with PC/µP/µC C7 STEPPER MOTOR DRIVER CARD (DOUBLE MOTOR) 1 Opto-isolation Interface with PC/µP/µC C8 MICROCONTROLLER BASED PROGRAMMABLE 4-DIGIT CODE LOCK 4 SYSTEM Can change the password with alarm useful for Door Lock, Device Lock, Car Lock, Locker System (Using 89C2051) C9 MICROCONTROLLER BASED DIGITAL LCD CLOCK 1 Microcontroller based (89C4051) LCD 16x2 display clock with day, date, time C10 MICROCONTROLLER BASED DIGITAL STOP WATCH 2199/- Microcontroller based (89C51),using Seven segment display, counts up to seconds. C11 RFID BASED TOLL PLAZA SYSTEM 5900/- Microcontroller based (89C51), automated toll collection systems, messages are also displayed on a 16x2 LCD, Using RFID C12 MICROCONTROLLER BASED SMOKE AND FIRE DETECTOR CUM ALARM 5500/-

6 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 The circuit is used to detect Fire and Smoke and give alarm when either of them occurs. This circuit is often used in Industries to detect fire and smoke that may occur at the site of hazardous processes.(at89c51) MICROCONTROLLER BASED ALCOHOL DETECTOR The circuit is used to detect ALCOHOL and Display the percentage in the breath of suspected person on LCD 16x2 Display.(AT89C51) MICROCONTROLLER BASED 5 CHANNEL STREET LIGHT CONTROL THROUGH RTC Schedule the ON/OFF of Street Lights so that they remain ON in the night and switched OFF in day. The timer can be programmed such that the lights will remain on from say 6:00 PM to 12:00 PM and again from 5:00 AM to 6:00 AM.(AT89C51) MICROCONTROLLER BASED WATER LEVEL INDICATOR WITH VOICE ALARM Gives four level indication & Speaks in Hindi language, using IC AT89C2051 MICROCONTROLLER BASED LED MULTIEFFECT CHEASER Blink of eight LEDs with the software of PIC 16F84A. MICROCONTROLLER (89C51) BASED SEVEN SEGMENT DISPLAY Display s 0 to 9 sequentially when power is ON. MICROCONTROLLER (89C51) BASED 8 LED BLINKING ON & OFF LED continually when power is ON. MICROCONTROLLER (89C51) BASED SEVEN SEGMENT NUMBUR SELECTOR Display s 0 to 9 number by pressing push on switches. MICROCONTROLLER (89C51) BASED STEPPER MOTOR DRIVER Drive the stepper motor interfacing to mc using four transistor. MICROCONTROLLER (89C51) BASED LIQUID LEVEL ALARM WITH 16X2 LCD Indicate four water level on LCD Display and gives buzzer when tank full. MICROCONTROLLER (89C51) BASED TEPERATURE INDICATOR WITH LCD Indicate Temp on Celsius & Fahrenheit on 16x2 LCD Display. BIG PROJECTS KITS BP1 BP2 BP3 BP4 BP5 BP6 BP7 BP8 BP9 TWO WAY COMMUNICATION SECURITY SYSTEM FOR HOUSE-HOLD I/R Detection with alarm and Two Way Door Phone INFRA-RED OBJECT COUNTER WITH ALARM Counts infrared interruptions on 7-segment display with alarm AUTOMATION OF MAN-LESS RAILWAY GATE (SINGLE DIRECTION) I/R Detection At Railway Track And Automatic Opening & Closing Of Man-less Gate For One Direction AUTOMATION OF MAN-LESS RAILWAY GATE (DOUBLE DIRECTION) I/R Detection At Railway Track And Automatic Opening & Closing Of Man-less Gate For Double Direction HOTEL ROOM CALLING MANAGEMENT SYSTEM WITH DIGITAL DISPLAY Calling Switch with display and alarm for each four room. SPEED CONTROL OF FAN USING REMOTE CONTROL Four different speeds can be selected with ON/OFF. AUDITORIUM ATTENDANCE COUNTER Count Total Attendance With The Incoming & Outgoing Person DIGITAL QUIZ TIMER FOR FOUR TEAM Priority Indicator With 7 Segment Digital Display & Alarm INTELLIGENT ENRGY SAVING SYSTEM PIR Based, human body Presence auto detection of on/off electric power. MICROCONTROLLER DEVOLOPMENT BOARD & ACCESSORIES (ASSEMBELD) 5800/- 4900/- 1200/- 1090/- 3900/ /- 4900/ /- 3900/- DB1 AVRoN16 Versatile atmega16 development board for beginners and researchers. 1 DB2 CoRe /- Versatile 89V51RD2 development board for beginners and researchers. DB3 AVRoN16 + Serial ISP Programmer 1650/- Versatile atmega16 development board with serial ISP programmer and accessories. DB4 AVRoN16 + USB Programmer 1 Versatile atmega16 development board with USB programmer and accessories. DB5 CoRe51 + Serial Programmer 1

7 DB6 DB7 DB8 DB9 DB10 DB11 DB12 DB13 DB14 DB15 DB16 DB17 DB18 DB19 DB20 DB21 DB22 DB23 DB24 DB25 DB26 DB27 DB28 DB29 DB30 Versatile 89V51RD2 development board with serial programmer and accessories. CoRe51 + USB Programmer Versatile 89V51RD2 development board with USB programmer and accessories. AVPro Atmel s ATMEGA16 microcontroller. All the pins of the controller are user accessible for performing their own customize project. CoRePro P89V51RD2 microcontroller. All the pins of the controller are user accessible for performing their own customize project. Proximity Sensor This sensor is ideal for detecting the obstacle in robot surrounding by means of no-contact proximity detection. L293D Motor Driver This is L293D based H-Bridge motor driver board for driving DC motors and is ideal for robotics applications RS232 to TTL convertor This is standard Rs232 to TTL logic level convertor for communicating between Computer serial interface and microcontrollers. Upro This is standard USB to UART Convertor build around high performance, reliable FT232. SerPro This is Low cost ISP programmer +Rs232 to TTL convertor for AVR family. USBProg Low cost USBASP programmer for AVR Family 2 Channel Relay Board This board is ideal for switching applications like lighting, switching appliances and many more. 4 Channel Relay Board This board is ideal for switching applications like lighting, switching appliances and many more. 8 Channel Relay Board This board is ideal for switching applications like lighting, switching appliances and many more. Using IC ULM 2804 Sound Sensor High sensitivity condenser microphone for sensing. Digital output (Active high). Bump Sensor Robust limit switch for detection. Digital output (Active high). Line Sensor High sensitivity IR receiver. Detection range: 10mm to 50mm. Digital output. Line Sensor Array: Analog 5 High sensitivity TCRT5000 IR reflectance sensors. Onboard power indicator LED. Analog output. Line Sensor Array: Digital 5 High sensitivity TCRT5000 IR reflectance sensors. Digital output. Ultrasonic Range finder: HC-SR04 Operating Voltage: +5V DC, Sensing angle: <15, Range of measurement: 2cm 500 cm Ultrasonic Range finder: TS106 Operating Voltage: +5V DC, Sensing angle: <15, Range of measurement: 3cm 300 cm SIM900/900A GSM/GPRS Modem Dual band (900MHz/1800MHz) GSM/GPRS Modem with very advance SIM900/Sim900A GSM module. GPS MODEM Low cost, high performance solution for GPS applications. RFID Reader Modem With RS232 Interface BLUETOOTH MODEM Low cost, high performance solution for Bluetooth applications Digital Accelerometer (10bit) Low cost, high performance solution for Bluetooth applications. Arduino Boards The Arduino USB board is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack /- 170/- 220/- 300/- 700/- 190/- 190/- 140/- 150/- 1500/- 1350/- 950/- 900/- 680/- 850/-

8 DB31 DB32 DB33 DB34 DB35 DB36 DB37 DB38 RF Remote controls 2 Motor output, on board 4 tactile switch for forward/reverse direction,433mhz 2 Channel RF Remote Control Control Modes: Momentary, Latched. Frequency: 315MHz, MHz 2 Channel 4 Channel RF Remote Control Control Modes: Momentary, Latched. Frequency: 315MHz, MHz 4 Channel 8 Channel RF Remote Control Control Modes: Momentary, Latched. Frequency: 315MHz, MHz 8 Channel Line Follower Robot Kit Dual Mode operation: Black Line Follower, White Line Follower. Obstacle Detector Robot Kit Dual Mode operation: Obstacle Avoider, Obstacle Follower. Robotic Arm Kit 3 Degree of Freedom Robotic Arm: Base rotation, Shoulder, Elbow, Gripper. Available with IR Remote and RF Remote. Wireless Camera TV System: LA, CCIR NTSC/EIA. Scan frequency : PLA/CCIR:50Hz, SC/EIA:60Hz Output Frequency: 900MHz to 1200MHz 850/- 670/- 890/- 1190/- 1090/- 1090/- 4200/- 1650/- NEW SOLAR ENARGY DEMO KIT 400/- WIND MILL MOBILE CHARGER 650/- WIND MILL WITH LED OUTPUT Note: Indicates NEW KITS TERMS AND CONDITIONS 1. Kit price includes PCB and Components that are to be mounted on PCB. Instruction paper is supplied with every kit along with circuit diagram. Kit prices are without assembled charges % Advance payment against delivery, amount to be sent by MO or DD. Check payment not accepted. 3. All Prices are exclusive of MST/Bank Charges/LBT and other taxes. 4. Prices are subject to change without prior notice and will be charged as prevailing at the time of dispatch of goods. 5. Packing, forwarding charges will be charged extra. Materials will be sent by Registered V.P.P. We do not take any responsibility for any loss or damage in transit. 6. Add 5% VAT for local sales(in Maharashtra) & 12.5% CST in case of orders from outside Manufacturer: - -info@elektrokit.in Devices Electrotechnica 205 A, Pushpanjali, Opp. Haldirams, Shankar Nagar Square, West High Court Road, Nagpur PH-O MOB Web:

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