Project 18 Copyright © 2016 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. 753318 U.S.
Table of Contents Basic Troubleshooting Parts List How to Use Snap Circuits® About Your Snap Circuits® Parts Introduction to Electricity DOs and DON’Ts of Building Circuits ! 1 2, 3 4, 5 6, 7 8 9 WARNING: SHOCK HAZARD - Never connect Snap Circuits® to the electrical outlets in your home in any way! WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years. Conforms to all applicable U.S. government requirements and CAN ICES-3 (B)/NMB-3 (B). Basic Troubleshooting 1.
Parts List (Colors and styles may vary) Symbols and Numbers 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 Name r3 1 r6 Part # Qty. 1-Snap Wire 6SC01 r4 Base Grid Mini (7.7” x 5.
Parts List (Colors and styles may vary) Symbols and Numbers 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 Name Symbol Part # Qty. ID Name Symbol Part # 6SCJ4 r1 R3 Resistor 5.1K Ohms 6SCR3 r2 Jumper Wire (Blue) r1 Lined Lens LED Attachment 6SCLLENS r1 S1 Slide Switch 6SCS1 r2 Mirror (2.0” x 2.
How to Use Snap Circuits® Snap Circuits® 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, light blocks, battery blocks, different length wire blocks, etc. These blocks are different colors and have numbers on them so that you can easily identify them. The blocks you will be using are shown as color symbols with level numbers next to them, allowing you to easily snap them together to form a circuit.
How to Use Snap Circuits® Due to the complex nature of building 3D circuits, the circuit diagrams use special symbols that may need additional clarification. One such example is the symbol for the vertical snap wire (V1). It consists of two parts, the horizontal base and vertical stem. In the illustration below, the base is attached to the large base grid and the stem is attached to the mini base grid.
About Your Snap Circuits® Parts (Part designs are subject to change without notice). BASE GRID The base grids are platforms for mounting parts and wires. They function like the printed circuit boards used in most electronic products, or like how the walls are used for mounting the electrical wiring in your home. This set has two sizes, which can be placed together to form larger grids. SNAP WIRES, VERTICAL SNAP WIRES, & JUMPER WIRES The blue snap wires are wires used to connect components.
About Your Snap Circuits® Parts RESISTORS Resistors “resist” the flow of electricity and are used to control or limit the current in a circuit. This set includes a 5.1kW resistor (R3) (“k” symbolizes 1,000, so R3 is really 5,100W). Materials like metal have very low resistance (<1W), while materials like paper, plastic, and air have near-infinite resistance. Increasing circuit resistance reduces the flow of electricity.
Introduction to Electricity What is electricity? Nobody really knows. We only know how to produce it, understand its properties, and how to control it. Electricity is the movement of subatomic charged particles (called electrons) through a material due to electrical pressure across the material, such as from a battery. There are two ways of arranging parts in a circuit, in series or in parallel.
DOs 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, horn, LED (which has an internal protection resistor), light tunnel, etc.), and wiring paths between them and back.
Advanced Troubleshooting (Adult supervision recommended) Elenco® 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. White LED (D6), color LED (D8), horn (W1), and battery holder (B3): Place batteries in holder. Place the white LED, and color LED directly across the battery holder (LED + to battery +), the LED should light.
Project Listings Project # 1 2 3 4 5 6 Description Color Light White Light Horn Simple Light Tunnel Fireworks 13 13 13 14 14 White Light Display 14 Ceiling Projector 15 7 Projector 9 Color Projector 15 Red Light Tunnel 16 Blue Light Tunnel 16 8 10 11 12 13 14 15 16 Tri-Color Light Tunnel Green Light Tunnel Red & Green Light Tunnel Red & Blue Light Tunnel 21 Security House w/ 2 Outer Lights 25 23 One-Mirror Circuit 25 3-Wall House 27 17 22 Security House 26
Project Listings Project # 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 Description Triple Parallel Page # Four Fun 4 - 1 = 3 Fun Four Fun Red Four Fun Green Four Fun Blue Four Fun Red & Green Four Fun Red & Blue Four Fun Green & Blue Vertical Four Fun Lights & Mirrors Noisy Lights & Mirrors Lights & Blinkless Mirrors Red Lights & Mirrors Green Lights & Mirrors 57 58 58 58 Photo Control Photo Control (II) Photo Control (III) Pho
Project 1 Placement Level Numbers + Project 2 White Light -13- Snap Circuits® uses electronic blocks that snap onto a clear plastic base grid to build different circuits. These blocks have different colors and numbers on them so you can easily identify them. This set contains both large (11” x 7.7”) and small (7.7” x 5.5”) base grids; you may use either size for this small circuit. Build the circuit shown on the left by placing all the parts with a black 1 next to them on the base grid first.
Project 4 Placement Level Numbers Simple Light Tunnel Build the circuit shown on the left by placing all the parts with a black 1 next to them on the board first. Then, place parts marked with a 2. Install three (3) “AA” batteries (not included) into the battery holder (B3) if you have not done so already. Turn on the slide switch (S1). The light tunnel (U30) puts on a show. For best effects, dim the room lights.
Project 7 + Use two vertical snap wires (V1) and mount the white LED (D6) on them so it will shine towards a wall, then place the projector on the white LED. These red pieces are the same vertical snap wire (V1), mounted so it stands up. Project 8 Ceiling Projector Use the project 2 circuit, but place the projector on the white LED (D6). Place the circuit in a dark room, preferably with a flat white ceiling.
Project 10 Tri-Color Light Tunnel Turn on the slide switch (S1). The light tunnel (U30) lights up with red, green, and blue LEDs. For best effects, dim the room lights. Try GENTLY pressing on the center of the mirror in the light tunnel, and notice how the light patterns bend inward a little. Project 11 Red Light Tunnel Project 12 Green Light Tunnel Use the project 10 circuit, but remove the 3-snaps connected between the points marked C & D and E & F.
3D Illumination Project 17 This drawing looks complex, because it shows assembly of a 3-dimensional structure. The grids fit into the supports easier if the column marking (1-7) is on this side. remove any protective backing These red pieces are the same vertical snap wire (V1), mounted so it stands up.
Assembly (adult supervision recommended). Follow these assembly instructions in order: 1. Place base grid supports on the base grid labeled A in the drawing. 4. Install remaining parts on grid A. 2. Place parts on grid B, and install into base grid support on grid A. 3. Place parts on grid C (except the vertical snap wire (V1) that connects to grid B, and the 2-snap wire that attaches to it), and install into base grid supports on grid A.
3Di Fun Project 18 This circuit is shown on the cover of the Snap Circuits® 3D Illumination box and manual. Use that picture to help with building it. + These red pieces are the same vertical snap wire (V1), mounted so it stands up. + -19- The grids fit into the supports easier if the column marking (1-7) is on this side.
Follow these assembly instructions, in order, using the photo on the box cover (and the cover of this booklet) as a guide: 1. Place base grid supports on the base grid labeled A in the drawing. 5. Install remaining parts on grid A. 2. Place parts on grid C, and install into base grid support on grid A. Note that part of a vertical snap wire (V1) is under the white LED (D6). 3.
Project 19 Think of this circuit as a room with an overhead light. LEDs are increasingly being used for room lighting.
Assembly (adult supervision recommended): 1. Place base grid supports on base grid A. 4. Place the remaining parts on grids A & C. 2. Place parts on base grids B, & D, and install into base grid supports on grid A. The pegs should be facing inward. Underside view 3. Mount grid C on top of grids B & D using 4 stabilizers, attaching the 2 vertical snap wires (V1) as you do it. Turn on the slide switch (S1) to light the white LED (D6).
Project 21 Security House You can place an object inside this house, If an intruder tries to reach in and grab it, then the alarm sounds and color LED flashes to scare the intruder away.
Assembly (adult supervision highly recommended): 1. Place base grid supports on base grid A. 2. Place parts (except for the jumper wires) on base grids B & C, and install into base grid supports on grid A. The pegs should be facing inward. 5. Mount grids D & E, at 45 degree angles and with pegs oriented as shown (down for grid D, up for grid E), on top of grids B & C using 6 stabilizers. Adjust the positions of the stabilizers as needed. 6. Gently place the light tunnel (U30) on grid E. 7.
Project 22 Security House with 2 Outer Lights If desired, you can move the black the jumper wire from the (−) snap on the light tunnel to the R, G, or B snap on it.
Modify the preceding circuit so the color LED (D8) shines up instead of down. Assembly (adult supervision highly recommended): 1. Place base grid supports on base grid A. 2. Place parts (except for the jumper wires) on base grids B & C, and install into base grid supports on grid A. The pegs should be facing inward. 5. Mount grids D & E, at 45 degree angles and with pegs oriented as shown (down for grid D, up for grid E), on top of grids B & C using 6 stabilizers.
Project 23 One-Mirror Circuit + + -27- +
Assembly (adult supervision recommended): 1. Place base grid supports on the base grid labeled A in the drawing. 4. Add the mirror and Q4 attachment. 2. Place parts on grids B & C, and install into base grid supports on grid A. 3. Install remaining parts on grid A. Turn on the slide switch (S1), and carefully align the mirror so light from the white LED (D6) reaches the phototransistor (Q4); an alarm will sound when you succeed.
Project 24 -29- One-Mirror Blinking Circuit
Follow these assembly instructions, in order, using the photo on the box cover (and the cover of this booklet) as a guide: 1. Place base grid supports on the base grid A. 5. Install remaining parts on grid A, note that there is a 1-snap wire on top of the NPN transistor (Q2), on level 3. 2. Place parts on grid B, and install into base grid supports on grid A. 3. Place parts on grid C (except the vertical snap wire (V1) that connects to grid B), and install into base grid support on grid A. 6.
Project 25 This circuit expands on the preceding one. Assembly (adult supervision recommended): 1. Place base grid supports on base grid A. 2. Place parts on base grids B, C, & D, and install into base grid supports on grid A. The pegs should be facing inward. 3. Mount grid E on top of grids B & C using 4 stabilizers, attaching the 3 vertical snap wires (V1) as you do it. 4. Place the remaining parts on grids A & E. Turn on the slide switch (S1) to light the light tunnel (U30 and LEDs (D6 & D8).
Project 26 Two-Mirror Circuit Assembly: + + + 1. Place base grid supports on base grids B & C. (Grids B & C are placed adjacent to make a full-size grid.) 2. Place parts on grid A, and install into base grid supports on grids B & C. 3. Install remaining parts on grids B & C. 4. Add the mirrors, lined lens, and Q4 attachment. Turn on the slide switch (S1), and carefully align the mirrors so light from the white LED (D6) reaches the phototransistor (Q4); an alarm will sound when you succeed.
Project 28 -33- Angled Roof House
Assembly (adult supervision highly recommended): 1. Place base grid supports on base grid A. 2. Place parts (except for the blue jumper wires) on base grids B & C, and install into base grid supports on grid A. The pegs should be facing inward. 3. Place remaining parts on grid A. 4. Mount grids D & E, at the angles shown and with pegs facing down, on top of grids B & C using 6 stabilizers, and attaching 2 vertical snap wires (V1) as you do it. Adjust the positions of the stabilizers as needed. 5.
Assembly: Project 29 1. Place base grid supports on base grid A. 2. Place parts on grids B & C, and install into base grid supports on grid A. 3. Install remaining parts on grid A. Break the Beam Turn on the slide switch (S1); the white LED (D6) should be on. Now place your hand between the white LED and the phototransistor (Q4) and an alarm should sound. 4. Add the Q4 attachment. + This circuit monitors the beam of light between the white LED and phototransistor.
Assembly: Project 30 1. Place base grid supports on base grid A. 2. Place parts on grids B&C, and install into base grid supports on grid A. 3. Install remaining parts on grid A. Block the Sound Turn on the slide switch (S1); the white LED (D6) and horn (W1) are on. Place your hand to block the light between the white LED and phototransistor (Q4); the sound stops.
Project 31 Light & Sound Turn on the slide switch (S1) to get a light display with funky sounds. For added effects, place the lined lens attachment on the color LED (D8), place the circuit so that the color LED is next to a wall or box, and dim the room lights. For best effects turn the clear part of the lined lens so that the lines on it converge towards the left. Project 32 A New Light & Sound Use the project 31 circuit but swap the locations of the white LED (D6) and color LED (D8).
ELENCO ELENCO ELENCO ELENCO ELENCO ELENCO ELENCO ELENCO Project 34 Put on the 3D color glasses and look at the Elenco® text on the right (with black background). Notice how the red printing seems to come to the front, while the blue printing seems to go to the back. 3D Color ® ® ® ® These are not normal 3D glasses like those in movie theaters. They have a special film that diffracts colors differently, making an image appear to have visual depth.
Project 37 Your 3D Color View stuff around your home through the 3D color glasses, including your computer or TV. Sharp contrasts between red, blue, green and yellow give the most interesting effects. Try making your own drawings. Have a contest with your friends to see who can make the most interesting image. -39- ® ® SNAP CIRCUITS ® SNAP CIRCUITS ® SNAP CIRCUITS ® SNAP CIRCUITS ® SNAP CIRCUITS Build projects 1-2 and view the color and white LEDs through the 3D color glasses.
Project 38 3D Color Splat Put on the 3D color glasses and look at this picture. Notice how the red seems to come to the front, while the blue seems to go to the back. Project 39 3D Color Fun Put on the 3D color glasses and look at this picture. Notice how the red seems to come to the front, while the blue seems to go to the back.
Project 40 Put on the 3D color glasses and look at these pictures. Notice how the red seems to come to the front, while the blue seems to go to the back.
Project 41 3D Color T-Rex Put on the 3D color glasses and look at these pictures. Notice how the red seems to come to the front, while the blue seems to go to the back. Project 42 Automatic Light Build the circuit and turn on the slide switch (S1). The white LED (D6) will be on unless there is bright light on the phototransistor (Q4), so vary the amount of light shining on the phototransistor. The horn (W1) will not make any sound (it is used here to help control the phototransistor current).
Project 43 Use the preceding circuit, but mount it up high so it so the phototransistor (Q4) can better measure the room light to see if the white LED (D6) needs to come on. Assembly (adult supervision recommended): 1. Place base grid supports on base grid A. -43- Elevated Automatic Light 2. Install grids B & C into base grid supports on grid A. The pegs on grids B & C should be facing outward. 3. Place parts on grids D as shown in project 42. 4. Mount grid D on top of grids B & C using 4 stabilizers.
Project 44 Use the preceding circuit, but add some lights on the sides, as shown. Assembly (adult supervision recommended): 1. Place base grid supports on base grid A. 2. Place parts on grids B & C (except jumper wires), and install into base grid supports on grid A. The pegs on grids B & C should be facing outward. 3. Place parts (except jumper wires) on grids A & D. There are only a few changes to the parts on grid D compared to project 43. Automatic Lights 4.
Project 45 Super Automatic Lights Use the preceding circuit, but change the connections to the light tunnel (U30), as shown. Now the light tunnel changes its pattern. Assembly: 1. Place base grid supports on base grid B. 2. Place parts on grid A, and install into base grid supports on grid B. 3. Install remaining parts on grid B. Turn on the slide switch (S1), and enjoy the show from the light tunnel (U30). For best effects, position the circuit to shine across a dimly lit room.
Project 47 Vertical Tri-Color Light Tunnel Assembly: 1. Place base grid supports on base grid B. 2. Place parts on grid A, and install into base grid supports on grid B. 3. Install remaining parts on grid B. Turn on the slide switch (S1), all the lights in the light tunnel (U30) are on. For best effects, position the circuit to shine across a dimly lit room. Project 48 Vertical Dual-Color Light Tunnel Use the preceding circuit but remove one of the 2-snap wires connecting to the light tunnel (U30).
Project 50 Wall Light Show Use two vertical snap wires (V1) and mount the color LED (D8) on them so it will shine towards a wall, then place the lined lens on the color LED. Place the circuit in a dark room and point it towards a wall, white walls give best effects. Turn on the slide switch (S1) and rotate the clear part of the lined lens to see how the light show changes. The room should be very dark for best effects. You can also get good results by projecting the light on a white box a few feet away.
Project 52 Dim Color Light Build the circuit as shown and turn on the slide switch (S1); the color LED (D8) will be dim. Push the press switch (S2) to make the LED much brighter. Resistors are used to control or limit the flow of electricity in a circuit. In this circuit, the 5.1kW resistor (R3) reduces the LED brightness, making the batteries last longer. What is Resistance? Take your hands and rub them together very fast. Your hands should feel warm.
Project 56 Dim Green Light Tunnel Build the circuit as shown; the green lights in the light tunnel (U30) should be on but dim. Push the press switch (S2); the red lights are on dimly but the green lights are off. Turn on the slide switch (S1); nothing changes (the green lights are still on dimly). Do you know what is happening here? This circuit does not have an on/off switch, so disconnect it when you are finished to avoid draining your batteries. The 5.
Project 60 Blinking Blue Light Tunnel Turn on the slide switch (S1). The blue LEDs in the light tunnel (U30) are blinking, and are in sync with the color LED (D8). For best effects, dim the room lights. Project 61 Blinking Red Light Tunnel Use the project 60 circuit, but move the 2-snap wire from the points marked E & F to points A & B. Project 62 Blinking Green Light Tunnel Use the project 60 circuit, but move the 2-snap wire from the points marked E & F to points C & D.
Project 66 Front & Back Circuit Top view Assembly: 1. Place base grid supports on base grid C. 2. Place parts on grids A&B, and install into base grid supports on grid C. Pegs on grid A should face toward the 4-snap wire (which on grid C), while the pegs on grid B -51- should face toward the 6-snap wire, so that grids A&B are facing in opposite directions. 3. Install remaining parts on grid C. Turn on the slide switch (S1).
Project 68 Break the Reflection Beam Assembly: 1. Place base grid supports on base grid A. 2. Place parts on grids B&C, and install into base grid supports on grid A. 3. Install remaining parts on grid A. 4. Add the Q4 attachment and mirror. Turn on the slide switch (S1); and align the mirror so that light from the white LED (D6) is reflected to shine directly on the phototransistor (Q4), to shut off the alarm. Now place your hand to block the reflected beam and turn on the alarm.
Project 70 If too much room light shines on the phototransistor then the alarm may never activate (because the circuit doesn’t notice that the beam was broken), but having some room light may make it easier to align the mirrors (because less light is needed from the white LED). Assembly: Break the 2-Reflection Beam 1. Place base grid supports on base grid A. 2. Place parts on grids B&C, and install into base grid supports on grid A. 3. Install remaining parts on grid A. 4.
Project 71 Bouncy Blur Use two vertical snap wires (V1) and mount the white LED (D6) on them so it will shine towards a wall, then place the projector on the white LED. Mount the mirror and its base on a spring, and orient the mirror so the reflected image will shine towards a wall. Turn on the slide switch (S1) and adjust the knob on the projector to show an image on the wall. Give the mirror a push so it bounces back and forth on the spring, making the image bounce around on the wall.
Project 73 Assembly: 1. Place base grid supports on base grid A. 2. Place parts on grids B&C, and install into base grid supports on grid A. Pegs on grids B&C should be facing outward. 3. Install remaining parts on grid A. 4. Add the two blue jumper wires. Since they are short, be sure to put them through the holes in grid C, as shown in the picture on the right. Turn on the slide switch (S1) to see light displays on the light tunnel (U30) and the color LED (D8).
Project 75 Series of LEDs Build the circuit and turn on the slide switch (S1). The white and color LEDs (D6 & D8) should be blinking but may be dim. If neither lights at all then replace your batteries. This circuit has both LEDs connected in SERIES. Series circuits are simple to connect, and allow one component to easily control another (here the white LED blinking is controlled by the color LED’s blinking). The LEDs may be dim because the battery voltage may not be high enough to make both bright.
Project 81 Triple Series? Build the circuit as shown, leaving the press switch (S2) out of the circuit for now. Turn on the slide switch (S1); most likely nothing will happen. Now add the press switch between the points labeled A&B, B&C, or C&D, and push it. Try it at all 3 locations. Most likely the battery voltage (4.5V) will not be strong enough to turn on any of the LEDs (D6 & D8) or the horn (W1) when all are connected together in series.
Project 83 Four Fun Turn on the slide switch (S1). The horn (W1) sounds, the white LED (D6) is very bright, the color LED (D8) is changing colors, and the light tunnel (U30) lights up with red, green, and blue LEDs. For best effects, dim the room lights. Project 88 Four Fun Red & Green Use the project 83-84 circuits but remove the 1-snap and 3-snap wires from the left of the circuit, and connect 2-snap wires across points A & B and C & D.
Project 92 Lights & Mirrors Assembly: 1. Place base grid supports on base grid B. 2. Place parts on grid A (except the red jumper wire), and install into base grid supports on grid B. 3. Install remaining parts on grid B, including the blue and red jumper wires. 4. Add the Q4 attachment, projector, and mirrors.
Project 93 Noisy Lights & Mirrors Use the project 92 circuit but swap the locations of the white LED (D6) and the horn (W1). Now the horn sounds when you have the mirrors aligned. Project 97 Blue Lights & Mirrors Use the projects 92-93 circuits but move the end of the red jumper wire from point A to point B on the light tunnel (U30). Project 94 Lights & Blinkless Mirrors Use the project 92-93 circuits but swap the locations of the color LED (D8) and white LED (D6).
Project 99 Transistor Amplifier Turn on the slide switch (S1). The color LED (D8) is dim but the white LED (D6) is bright. Remove either LED (D6 or D8) and see what happens to the other one. The NPN transistor (Q2) is a current amplifier. When a small current flows into Q2 through the left branch (through D8), a larger current will flow into Q2 through the right branch (with D6). Green arrows shown the current flow. So the LED on the right side will be brighter than the LED on the left side.
Project 103 IF NEEDED Project 106 Photo Control (IV) Use the project 103-105 circuits but remove the 5.1kW resistor, and see how its sensitivity to light changes. The 5.1kW resistor diverts some current from the phototransistor to keep the circuit from being too sensitive to light. Photo Control Build the circuit and turn on the switch (S1). The white LED (D6) and horn (W1) will be on if there is light on the phototransistor (Q4); cover the phototransistor to turn them off.
Project 108 Reverse Photo Control Build the circuit and turn on the switch (S1). The color LED (D8) and horn (W1) will be on unless there is bright light on the phototransistor (Q4); cover the phototransistor if the LED and horn are on, or shine brighter light on it if they are off. Projects 108-110 are the inverse of projects 103-105. Project 111 If you remove the phototransistor from the circuit then the LED and horn will always be on, because then the circuit is controlled by the 5.
Project 113 IR Control You need an infrared remote control for this project, such as any TV/stereo/DVD remote control in your home. Turn on the slide switch (S1) and place the Q4 attachment on the phototransistor (Q4). Position the circuit away from lights in the room so that the white LED (D6) is off. Point your remote control directly into the Q4 attachment, and press any button to turn on the white LED.
Project 116 Photo Control Four Build the circuit and turn on the switch (S1). Four devices should be on (light tunnel (U30), white LED (D6), color LED (D8), and horn (W1)); cover the phototransistor (Q4) to shut them off. If none of the devices are on then shine more light on the phototransistor. You can place the Q4 attachment on Q4 if you want to make it less sensitive to light. Remove the horn if you find its sound too annoying. Variants: 1.
Project 119 Double Blinker Turn on the slide switch (S1). The red LEDs in the light tunnel (U30) are dim and blinking, and are in sync with the color LED (D8). For best effects, dim the room lights and use new batteries. The color LED is connected in series with the light tunnel, making its color-changing circuitry control both. The three red LEDs in the light tunnel are connected in parallel with each other, so each only gets a third of the current, making them much dimmer than the color LED.
Project 124 Turn on the slide switch (S1). The white LED (D6) lights dimly. Now push the press switch (S2) and hold it down. The white and color LEDs (D6 & D8) appear to be alternately flashing. Alternating Lights In this circuit electricity to the white and color LEDs is restricted by the 5.1kW resistor (R3). The color LED (D8) contains separate red, green, and blue LEDs, with a microcircuit controlling them.
Project 127 Blue Blinking Fun Turn on the slide switch (S1). The blue LEDs in the light tunnel (U30) are blinking, but the red & green ones are not. The LEDs in the light tunnel can be controlled individually, or together in a preset changing pattern. Project 129 Red Blinking Fun Project 130 Project 131 Red-Green Red-Blue Blinking Fun Blinking Fun Use the preceding circuit, but move the 2-snap wire from the points marked A & B to points C & D.
Mounted upside down: Project 133 Button Ball This project requires a ping pong ball or similar size ball (not included). Assembly: 1. Place all parts on the base grid, including the two vertical snap wires (V1). Mounted sideways: 2. Mount the white LED (D6) and press switch (S2) on two other vertical snap wires, which are then mounted on the first ones, so that the white LED is upside down (so it will shine down onto the phototransistor (Q4)) and the press switch is sideways.
Project 135 Hole Ball with Light Tunnel Mounted upside down: Mounted sideways: You can enhance the preceding circuit (and the one before it) by replacing the color LED (D8) with the light tunnel (U30), as shown. Try to throw the ping pong ball through the opening between the vertical snap wires. Project 136 Check the Light Tunnel This circuit is a simple check that the light tunnel is working properly, and is referenced by the Advanced Troubleshooting procedure.
Project 137 High Wind Alarm Build the circuit as shown; note that there are five vertical snap wires (V1) standing up. Place a small piece of paper between the two 2-snap wires as shown, and position it to hang down and block the light between the white LED (D6) and the phototransistor (Q4). Place the circuit in a dimly lit room. Turn on the slide switch (S1); the white LED should be on, but there should be no sound.
Project 139 Free Mirror Circuit MIRROR Use as per instructions When installed backwards, the color LED’s color changing microcircuit acts like a small electric speed bump. It is used here to regulate the voltage to the NPN transistor (Q2), so that room lights do not easily trigger the alarm. Assembly: 1. Place base grid supports on base grid A. 2. Place parts on grid B, and install into base grid supports on grid A. 3. Install remaining parts on grid A.
Project 141 Assembly (adult supervision recommended): 1. Place battery holder (B3) and base grid supports on base grid A. 2. Place parts on base grids B & D, and install into base grid supports on grid A. The pegs should be facing inward. 3. Install grids C & E into base grid supports on grid A, attaching the 4 vertical snap wires (V1) as you do it. 4. Add the 4 stabilizers to help secure grids B-E together. 5. Place the remaining parts on grids A, C, & E.
Project 142 Assembly (adult supervision recommended): Burglar Alarm Box 1. Place battery holder (B3) and base grid supports on base grid A. 2. Place parts on grid E, and install into base grid support on grid A. The pegs should be facing inward. 3. Place parts on base grids B & D, except for the 2 vertical snap wires (V1) that attach to grid E and the parts connected to them. 4.
Project 143 Assembly (adult supervision recommended): 1. Place base grid supports on base grid A. 2. Place parts on grids B & C (except jumper wires), and install into base grid supports on grid A. The pegs on grids B & C should be facing outward. 3. Place parts (except jumper wires) on grids A & D. 4. Mount grid D on top of grids B & C using 4 stabilizers. 5. Add the jumper wires (2 blue, 1 red, and 1 black.
Project 144 Assembly (adult supervision recommended): Light Tunnel Tower 1. Place base grid supports on base grids A & D. 2. Install base grids B & C into base grid supports on grid A. The pegs should be facing inward. 3. Place parts on base grid E, and install into base grid support on grid D. The pegs on grid E should be facing forward. 4. Mount grid D (with grid E on it) on top of grids B & C using 4 stabilizers. 5. Place the remaining parts on grid A. 6. Connect the red & black jumper wires.
Project 145 Morse Code With a few changes, the preceding circuit can be used to send messages. replace the slide switch (S1) with the press switch (S2), and modify the connections to the light tunnel (U30) as shown. Push the press switch several times to send messages using Morse Code. Morse Code: The forerunner of today’s telephone system was the telegraph, which was widely used in the latter half of the 19th century.
Project 147 Light-Controlled Light Tunnel Build the circuit and turn on the slide switch (S1). The light tunnel (U30) will be on if there is enough light on the phototransistor (Q4), so vary the amount of light shining on the phototransistor. Project 148 IR-Controlled Light Tunnel You need an infrared remote control for this project, such as any TV/stereo/DVD remote control in your home. Use the preceding circuit, but position it away from lights in the room so that the light tunnel (U30) is off.
Project 149 Liquid Conductor Build the circuit as shown, leaving the ends of the red & black jumper wires unconnected for now. Turn on the slide switch (S1); the light tunnel (U30) should be off. Place the loose ends of the red & black jumper wires into a cup of water (but not distilled water), without them touching each other. The light tunnel should be on now, because water conducts electricity, completing this circuit. Don’t drink any water used here.
Project 153 Mirrors on a Wall Assembly (adult supervision recommended): 1. Place base grid supports on base grid A. 2. Place parts on grid C (except the blue jumper wire) and install into base grid support on grid A. 3. Install grid B into base grid supports on grid A. 4. Install a stabilizer between grids B & C. 5. Install remaining parts on grid A and blue jumper wire. 6. Place the springs at the locations shown on grid B. Turn on the slide switch (S1); the white LED (D6) should be on.
Project 154 Color Light Box Assembly: 1. Place battery holder (B3) and base grid supports on base grid A. 2. Place parts on base grids B & D, and install into base grid supports on grid A. The pegs should be facing inward. 3. Install grids C & E into base grid supports on grid A, attaching the 4 vertical snap wires (V1) as you do it. 4. Place the color LED (D8) on the battery holder. The color LED should be on (there is no on/off switch).
Project 156 Projector Box Assembly: 1. Place parts and base grid supports on base grid A, except the red & black jumper wires. 2. Place parts on base grids B & D, and install into base grid supports on grid A. The pegs should be facing inward. 3. Install grids C & E into base grid supports on grid A, attaching the 4 vertical snap wires (V1) as you do it. 4. Connect the red & black jumper wires. 5. Place the projector on the white LED (D6). Turn on the slide switch (S1); the white LED should be on.
Project 157 Mini Overhead Light This circuit is similar to project 21, but smaller. Assembly (adult supervision recommended): 1. Place base grid supports on base grid A. 2. Place parts on base grids B, & D, and install into base grid supports on grid A. The pegs should be facing inward. 3. Mount grid C on top of grids B & D using 4 stabilizers, attaching the 2 vertical snap wires (V1) as you do it. 4. Place the remaining parts on grids A & C. Turn on the slide switch (S1) to light the white LED (D6).
Project 159 This circuit is similar to project 29. Assembly (adult supervision recommended): 1. Place base grid supports on base grid A. Floor-to-Ceiling Break the Beam 2. Place parts on base grids B, & D, and install into base grid supports on grid A. The pegs should be facing inward. 3. Mount grid C on top of grids B & D using 4 stabilizers, attaching the 2 vertical snap wires (V1) as you do it. 4. Place the remaining parts on grids A & C. 5. Place the Q4 attachment on the phototransistor (Q4).
Going Further The structures shown below require additional Snap Circuits® parts that are not included in this set, but may be part of other Snap Circuits® sets you already have. They are provided here as examples of what can be made by combining this set with others. If you experiment further on your own then be sure to follow the guidelines in the DOs and DON’Ts pages of your manuals (page 8 of this manual). You may purchase additional Snap Circuits® parts at www.snapcircuits.net.
Other Snap Circuits® Products! For a listing of local toy retailers who carry Snap Circuits® visit www.elenco.com or call us toll-free at 800-533-2441. For Snap Circuits® accessories, additional parts, and more information about your parts visit www.snapcircuits.net. Snap Circuits® ARCADE Model SCA-200 with over 200 projects including 20+ games Snap Circuits® ARCADE contains over 35 parts along with over 200 projects including 20+ games to complete.
SC-3Di 3D & ILLUMINATION Parts Layout 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. Note: A complete parts list is on pages 2 and 3 in this manual.
