Copyright © 2007 by Elenco® Electronics, Inc. All rights reserved. No part of this book shall be reproduced by any means; electronic, photocopying, or otherwise without written permission from the publisher.
Table of Contents Basic Troubleshooting 1 Advanced Troubleshooting 6 Parts List 2 Project Listings 7 How to Use It 3 Projects 1 - 101 8 - 44 About Your Snap Circuits® Parts 4 Other Snap Circuits® Projects 45 DO’s and DON’Ts of Building Circuits 5 Snap Circuits® Project Shapes 46 ! WARNING TO ALL PARTS WITH A ! SYMBOL - Moving parts. Do not touch the motor or fan during operation. Do not lean over the motor. Do not launch the fan at people, animals, or objects.
Parts List (Colors and styles may vary) Symbols and Numbers Note: If you have the more advanced Models SC-300, SC-500, or SC-750, there are additional part lists in the other project manuals. Important: If any parts are missing or damaged, DO NOT RETURN TO RETAILER. Call toll-free (800) 533-2441 or e-mail us at: help@elenco.com. Customer Service • 150 Carpenter Ave. • Wheeling, IL 60090 U.S.A. Qty. ID 1 Name Symbol Part # Qty. ID Name Symbol Part # Base Grid (11.0” x 7.
How To Use It The Electronic Snap Circuits® kit has 101 projects. They are simple to build and understand. The Snap Circuits® kit uses building blocks with snaps to build the different electrical and electronic circuits in the projects. Each block has a function: there are switch blocks, lamp blocks, battery blocks, different length wire blocks, etc. These blocks are in different colors and have numbers on them so that you can easily identify them.
About Your Snap Circuits® Parts Our Student Guides give much more information about your parts along with a complete lesson in basic electronics. See www.snapcircuits.net/learn.htm or page 45 for more information. (Part designs are subject to change without notice). Note: If you have the more advanced Models SC-300, SC-500, or SC-750, there is additional information in your other project manual(s). The base grid functions like the printed circuit boards found in most electronic products.
DO’s and DON’Ts of Building Circuits After building the circuits given in this booklet, you may wish to experiment on your own. Use the projects in this booklet as a guide, as many important design concepts are introduced throughout them. Every circuit will include a power source (the batteries), a resistance (which might be a resistor, lamp, motor, integrated circuit, etc.), and wiring paths between them and back.
Advanced Troubleshooting (Adult supervision recommended) Elenco® Electronics is not responsible for parts damaged due to incorrect wiring. If you suspect you have damaged parts, you can follow this procedure to systematically determine which ones need replacing: 1. 2.5V lamp (L1), motor (M1), speaker (SP), and battery holder (B1): Place batteries in holder and install bulb in lamp socket. Place the 2.5V lamp directly across the battery holder, it should light.
Project Listings Project # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 -7- Description Electric Light & Switch DC Motor & Switch Sound Activated Switch Adjusting Sound Level Lamp & Fan in Series Lamp & Fan in Parallel Light Emitting Diode One Direction for LED Conduction Detector Space War Alarm Combo Flying Saucer Decreasing Saucer Lift Two-Speed Fan The Fuse Musical Doorbell Momentary Alarm Alarm Circuit Laser Gun Space War Light Switch Paper Space War Li
Project #1 Electric Light & Switch OBJECTIVE: To show how electricity is turned “ON” or “OFF” with a switch. Build the circuit shown on the left by placing all the parts with a black 1 next to them on the base grid first. Then, assemble parts marked with a 2. Install two (2) “AA” batteries (not included) into the battery holder (B1) and screw the bulb into the lamp socket (L1) if you have not done so already.
Project #3 Sound Activated Switch OBJECTIVE: To show how sound can turn “ON” an electronic device. Build the circuit shown on the left by placing all the parts with a black 1 next to them on the base grid first. Then, assemble parts marked with a 2. Finally, lay the speaker (SP) on the table and connect it to the circuit using the jumper wires as shown. When you close the slide switch (S1), the music may play for a short time, and then stop.
Project #5 Lamp & Fan in Series OBJECTIVE: To show how a lamp can indicate when a fan is running. Build the circuit shown on the left by placing all the parts with a black 1 next to them on the base grid first. Then, assemble parts marked with a 2. Finally, place the fan blade on the motor (M1). When you close the slide switch (S1), the fan will spin and the lamp (L1) should turn on. The fan will take a while to start turning due to inertia.
Project #7 Light Emitting Diode OBJECTIVE: To show how a resistor and LED are wired to emit light. Build the circuit shown on the left by placing all the parts with a black 1 next to them on the base grid first. Then, assemble parts marked with a 2. When you close the slide switch (S1), current flows from the batteries (B1) through the slide switch, through the resistor (R1), through the LED (light emitting diode, D1) and back to the battery. The closed slide switch completes the circuit.
Project #9 Conduction Detector OBJECTIVE: To make a circuit that detects the conduction of electricity in different materials. Rebuild the circuit from Project #7 but leave the slide switch (S1) out as shown on the left. When you place a metal paper clip across the terminals as shown in the picture on the left, current flows from the batteries (B1) through the resistor (R1), through the LED (D1), and back to the battery. The paper clip completes the circuit and current flows through the LED.
Project #11 Flying Saucer OBJECTIVE: To make a circuit that launches the fan blade to simulate a flying saucer. Rebuild the circuit from Project #2, but reverse the polarity on the motor (M1) so the negative (–) on the motor goes to the positive (+) on the battery (B1). New alkaline batteries are recommended for this project. When you close the slide switch (S1), the motor will slowly increase in speed. When the motor has reached maximum rotation, turn the slide switch off.
Project #13 Two-Speed Fan OBJECTIVE: To show how switches can increase or decrease the speed of an electric fan. Build the circuit shown on the left by placing all the parts with a black 1 next to them on the board first. Then, assemble parts marked with a 2. Finally, add the 2-snap wires that are marked for level three. ! WARNING: Moving parts. Do not touch the fan or motor during operation.
Project #15 Musical Doorbell OBJECTIVE: To show how an integrated circuit can be used as a musical doorbell. Build the circuit shown on the left. When you close the slide switch (S1), the music integrated circuit (U1) may start playing one song then stop. Each time you press the press switch “doorbell button” (S2) the song will play again and stop. Even if you let go of the press switch (S2), the integrated circuit keeps the song playing until it has reached the end of the song.
Project #17 Alarm Circuit OBJECTIVE: To show how an integrated circuit can be used to make real alarm sounds. Build the circuit shown on the left by placing all the parts with a black 1 next to them on the board first. Then, assemble parts marked with a 2. When you close the slide switch (S1), the integrated circuit (U2) should start sounding a very loud alarm sound. This integrated circuit is designed to sweep through all the frequencies so even hard of hearing people can be warned by the alarm.
Project #19 Space War OBJECTIVE: To introduce you to the space war integrated circuit and the sounds it can make. Build the circuit shown on the left, which uses the space war integrated circuit (U3). Activate it by flipping the slide switch (S1) or pressing the press switch (S2); do both several times and in combination.
Project #22 Light Police Siren OBJECTIVE: To build a police siren that is controlled by light. Build the circuit shown on the left by placing all the parts with a black 1 next to them on the base grid first. Then, assemble parts marked with a 2. Finally, insert the parts with a 3 last on level 3. Cover the photoresistor (RP) and turn on the slide switch (S1). A police siren with music is heard for a while and stops, then you can control it by covering or uncovering the photoresistor.
Project #27 Clap Sounds OBJECTIVE: To build a police siren and other sounds that are controlled by clapping your hands. Build the circuit shown on the left by placing all the parts with a black 1 next to them on the base grid first. Then, assemble parts marked with a 2. Turn on the slide switch (S1) and a police siren is heard and then stops, clap your hands and it will play again. Note however that music can be heard faintly in the background of the siren.
Project #32 Voice Light Diode OBJECTIVE: To build a circuit that uses your voice to control a light emitting diode. Build the circuit shown on the left and turn on the slide switch (S1). The LED (D1) may be on for a while and then turn off. Clap or talk loud and the LED will light again and keep flickering for a little while. Project #34 Motor Space Sounds OBJECTIVE: To build a circuit that uses a motor to activate space war sounds.
Project #36 Space Battle (II) OBJECTIVE: To show another way of using the space war integrated circuit. Build the circuit shown on the left, which is based on the circuit in the Space War Project #19. Turn on the switch and you will hear exciting sounds, as if a space battle is raging! The motor is used here as a 3-snap wire, and will not spin. ! Project #38 WARNING: Moving parts. Do not touch the fan or motor during operation.
Project #40 Motor-Controlled Sounds OBJECTIVE: circuits. To show how motion can trigger electronic This circuit is controlled by spinning the motor (M1) with your hands. Turn on the slide switch (S1). A police siren is heard and then stops. Spin the motor and it will play again. Note however, that music can be heard faintly in the background of the siren.
Project #45 Light-Controlled Flicker OBJECTIVE: To make a circuit that uses light to control the blinking of another light. This circuit does not use the noisy speaker (SP) it uses a nice quiet LED (D1). Turn on the slide switch (S1), the LED flickers. Wait a few seconds, then cover the photoresistor (RP) and the flicker stops. The flicker is controlled by the photoresistor, uncover it and the flicker resumes. People who are deaf need lights to tell them when a doorbell is ringing.
Project #47 This OR That OBJECTIVE: To introduce you to the OR concept of electronic wiring. Build the circuit shown. Notice that if you turn on the slide switch (S1) OR press the press switch (S2) the LED (D1) lights up. There is no partially lit state here, the diode is either totally on or totally off. While this may seem very simple and boring, it represents an important concept in electronics.
Project #49 Neither This NOR That OBJECTIVE: To demonstrate the concept of a NOR circuit. Build the circuit at left and test the combinations of the slide switch (S1) and press switch (S2). If you compare it to the OR circuit in Project #47, you can see the LED lights in the opposite combinations of that circuit. Hence, we refer to it as a NOR circuit (short for “NOT this OR that”). Like the OR and AND, it is an important building block in computers.
Project #51 Reflection Detector OBJECTIVE: To detect if a mirror is present. Build the circuit at left. Place it where there won’t be any room light hitting the photoresistor (RP) (such as in a dark room or under a table), and then turn it on. The 2.5V lamp (L1) will be bright but there should be little or no sound. Take a small mirror and hold it over the lamp and photoresistor. You should hear sound now. You have a reflection detector! The more light that gets reflected like this, the louder the sound.
Project #53 Flashing Laser Light with Sound OBJECTIVE: To build the circuit used in a toy laser gun with flashing laser light and trigger. When you press the press switch (S2), the integrated circuit (U2) should start sounding a very loud laser gun sound. The red LED will flash simulating a burst of laser light. You can shoot long repeating laser burst, or short zaps by tapping the press switch. Project #54 Space War Flicker OBJECTIVE: To build a circuit using the space war IC to make exciting sounds.
Project #55 Spinning Rings OBJECTIVE: To build an electronic spinner. Setup: Cut out the disc on page 46 that looks like the one shown here. Using Scotch tape, attach the disc with the printed side up on the top of the fan blade. Place the blade on the motor (M1) as shown to the left and below. When the press switch (S2) is pressed, the arcs will turn into colored rings with a black background. Notice how the color drops in brightness when it is stretched to make a complete circle.
Project #57 Race Game OBJECTIVE: Build an electronic game for racing. ! WARNING: Moving parts. Do not touch the fan or motor during operation. Project #58 Modify Project #56 by adding the pointer as shown on the left. The paper should be cut from page 46 and taped high enough on the speaker (SP) so the pointer will stick over the fan (M1) with paper. Bend the pointer at a right angle as shown on the left.
Project #59 Spin Draw OBJECTIVE: To produce circular artistic drawings. Rebuild the simple motor connection as shown on the left. This is the same setup as Project #57. Setup: Cut out a circular piece of thin cardboard from the back of an old spiral notebook or note pad. Use the fan blade as a guide. Place the fan on the cardboard and trace around it with a pencil or pen. Cut the cardboard out with scissors and tape it to the fan blade.
Project #61 Light-Controlled Sounds OBJECTIVE: To give a more dramatic demonstration of using the photosensitive resistance. Build the circuit shown on the left. Turn on the slide switch (S1), a police siren is heard. The loudness of the sound depends on how much light reaches the photoresistor (RP), try partially shielding it or placing near a very bright light, and compare the sound.
Project #66 Electronic Bombing Game OBJECTIVE: To make an electronic bombing game. Shorting Bar for X, Y, or Z. Paper Sheet to hide position of shorting bar. Shorting Bar for B, C, or D. Build the circuit at left. It uses both jumper wires as permanent connections. It also uses two 2-snap wires as “shorting bars”. Setup: Player 1 sets the target by placing one shorting bar under the paper on row B, C, or D. Player 2 must NOT know where the shorting bar is located under the paper.
Project #67 Paper Sheet to hide position of shorting bar. Shorting Bar for X, Y, or Z. Quiet Zone Game OBJECTIVE: Make and play the electronic game of “Quiet Zone”. Use the circuit from Project #66, but place two 2-snap wires (“shorting bars”) under the paper sheet as shown on left. Setup: Player 1 sets the “Quiet Zone” by placing 2 shorting bars under the paper on row A, B, C, or D, leaving only one open. Player 2 must NOT know where the shorting bars are located under the paper.
Project #69 Space War Siren OBJECTIVE: To combine effects from the space war and alarm integrated circuits. Build the circuit shown on the left and turn on the slide switch (S1). Press and hold the press switch (S2) to make the lamp (L1) brighter. Project #70 Quiet Water Alarm OBJECTIVE: To sound an alarm when water is detected. Sometimes you want a water alarm that can be heard but is not loud enough to be annoying or distracting, so let's make one.
Project #71 Light-Controlled Lamp OBJECTIVE: To turn a lamp on and off using light. Cover the unit, turn the slide switch (S1) on, and notice that the lamp (L1) is off after a few seconds. Place the unit near a light and the lamp turns on. Cover the photoresistor (RP) and place it in the light again. The lamp will not turn on. The resistance of the photoresistor decreases as the light increases. The low resistance acts like a wire connecting point C to the positive (+) side of the battery (B1).
Project #74 Light-Controlled LED OBJECTIVE: To control an LED using light. Cover the unit, turn the slide switch (S1) on, and notice that the LED (D1) is on for a few seconds and then goes off. Place the unit near a light and the LED will light. Cover the photoresistor (RP) and place it near the light again. The LED will not turn on. The resistance of the photoresistor decreases as the light increases. Project #75 Sound-Controlled Time Delay LED OBJECTIVE: To control an LED using sound.
Project #77 Space War Flicker LED OBJECTIVE: Flash an LED using the space war IC. Build the circuit shown on the left. The circuit uses the alarm (U2) and space war (U3) IC’s to flash the LED (D1). Turn the slide switch (S1) on and the LED starts flashing. Project #79 Project #78 Music AND Gate OBJECTIVE: To build an AND gate. You will only hear music if you turn on the slide switch (S1) AND press the press switch (S2). This is referred to as an AND gate in electronics.
Project #80 ! Lamp, Speaker & Fan in Parallel WARNING: Moving parts. Do not touch the fan or motor during operation. OBJECTIVE: To show the power drop of components connected in parallel. Leave the fan off the motor (M1). Turn on the slide switch (S1), the motor spins and the lamp (L1) turns on. Place the fan on the motor and press the press switch.
Project #83 Fun with the Alarm IC OBJECTIVE: To show some new ways of using the alarm IC. Build the circuit shown and place the fan on the motor (M1), but leave the jumpers off for the time being. Turn on the slide switch (S1) and tap the whistle chip (WC), it makes a machine gun sound (with music in the background). Thoroughly cover the photoresistor (RP) with your hand and the sound becomes a siren. With the photoresistor covered, press the press switch (S2) and the sound becomes that of an ambulance.
Project #86 Music Alarm Combo OBJECTIVE: To combine the sounds from the music and alarm integrated circuits. Build the circuit shown and add the jumper to complete it. Turn it on and you will hear a siren and music together. Press the press switch (S2) and the siren changes to a fire engine sound. After a few seconds, covering the photoresistor (RP) will stop the music (but the siren continues). The motor (M1) is used here as a 3-snap wire and will not spin.
Project #89 Light-Controlled LED (II) OBJECTIVE: Build a circuit that turns an LED on and off if there is light present. When there is light on the photoresistor (RP), the LED (D1) will flicker. Shield the photoresistor from the light, the LED should turn off. Project #90 Touch Light Project #91 Touch Sound OBJECTIVE: Build a circuit that turns on and off an LED using the whistle chip. OBJECTIVE: Build a circuit plays sound if you tap on the whistle chip. Use the circuit from Project 89.
Project #92 Water Space War OBJECTIVE: To use water to control the space war integrated circuit. Build the circuit shown on the left, including the jumper wires going between it and the cup of water shown. There will be sound as long as the wires are in the water. Placing the wires out of and then back into the water will change the sound played, there are eight (8) different sounds. Project #93 Water Space War (II) OBJECTIVE: To use water to control the space war integrated circuit.
Project #95 Noisier Water Space War OBJECTIVE: To use water to control the space war integrated circuit. Add the press switch (S2) to the preceding circuit to make it look like the one at left. There will be sound if the press switch is pressed or the jumper wires are in the water. Pressing the press switch or pulling the wires out of the water changes the sound played. If you prefer you can just touch the jumper wire metal with your fingers instead of putting the jumpers in the water.
Project #98 Simple Water Alarm OBJECTIVE: To sound an alarm when water is detected. Build the circuit shown but initially leave the jumper wires outside the cup. Turn on the slide switch (S1); nothing happens. Place the jumper wires into a cup of water and an alarm sounds! You could use longer wires and lay them on your basement floor, if your basement floods during a storm, then this circuit will sound an alarm. Project #99 Simple Salt Water Alarm OBJECTIVE: To detect salt water.
OTHER SNAP CIRCUITS® PROJECTS! Elenco® has over 200 electronics and science kits, along with hundreds of other electronics products. To see the complete line of products and where to buy them, visit our website www.elenco.com or call us toll-free at (800) 533-2441. For Snap Circuits® upgrade kits and accessories, go to www.snapcircuits.net.
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Elenco® Electronics, Inc. 150 Carpenter Avenue Wheeling, IL 60090 (847) 541-3800 Web site: www.elenco.com e-mail: elenco@elenco.
