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REV-A

Patent #‘s: 7,144,255, 7,273,377, & other patents pending

Project A3

Содержание SNAP CIRCUITS XP

Страница 1: ...Inc All rights reserved No part of this book shall be reproduced by 753154 any means electronic photocopying or otherwise without written permission from the publisher REV A Patent s 7 144 255 7 273...

Страница 2: ...s Adult Supervision Because children s abilities vary so much even with age groups adults should exercise discretion as to which experiments are suitable and safe the instructions should enable superv...

Страница 3: ...SC04 r 2 10kW Resistor 6SCR4 r 1 5 Snap Wire 6SC05 r 1 100kW Resistor 6SCR5 r 1 6 Snap Wire 6SC06 r 1 Photoresistor 6SCRP r 1 7 Snap Wire 6SC07 r 1 Adjustable Resistor 6SCRV r 1 Battery Holder uses 3...

Страница 4: ...rt electricity just like pipes are used to transport water The colorful plastic coating protects them and prevents electricity from getting in or out The base grid is a platform for mounting parts and...

Страница 5: ...ophone X1 is actually a resistor that changes in value when changes in air pressure sounds apply pressure to its surface Its resistance typically varies from around 1kW in silence to around 10kW when...

Страница 6: ...Q2 The microcontroller IC U21 includes the PICAXE 08M2 integrated circuit This is a mini computer which can be programmed to perform different tasks including monitoring things and making things happ...

Страница 7: ...ce of a component or circuit represents how much it resists the electrical pressure voltage and limits the flow of electric current The relationship is Voltage Current x Resistance When the resistance...

Страница 8: ...he higher voltage ALWAYS disconnect your batteries immediately and check your wiring if something appears to be getting hot ALWAYS check your wiring before turning on a circuit ALWAYS connect U21 micr...

Страница 9: ...switch to test it 5 100W R1 1kW R2 and 10kW R4 resistors Use the mini circuit from test 4 but replace the switch with the 100W resistor R1 the LED will be bright if the resistor is good Next use the...

Страница 10: ...the Stars 17 A10 Angles and Distance 18 A11 Flip Flop 19 A12 Adjustable Light Timer 19 A13 Light Sensitive Timer 20 A14 Shot in the Dark 20 A15 Microphone Control 21 A16 Adjustable Brightness 21 A17...

Страница 11: ...the circuit blocks properly spaced You will see evenly spaced posts that the different blocks snap into The base has rows labeled A G and columns labeled 1 10 Next to each part in every circuit drawin...

Страница 12: ...he 100W resistor R1 with the 1kW resistor R2 The circuit works the same but the red LED D1 will not be as bright Now replace the 1kW resistor with the 10kW resistor R4 The LED will be dim now Now repl...

Страница 13: ...ED D1 to come on Push the press switch S2 and hold it down until music starts Set the lever on the adjustable resistor RV for best sound The motor M1 will spin while you push S2 and then will follow t...

Страница 14: ...irst and each flash counts as 4 then the red LED will flash and each flash counts as 1 For example if you pressed S2 14 times the green LED will flash 3 times representing 12 since each counts as 4 an...

Страница 15: ...LEDs will display the count as before without music Project A5 Adding Sound to the Counter Project A6 Daylight Alarm Clock Note This circuit requires program Electronic Brain to be in microcontroller...

Страница 16: ...been on for several minutes without being triggered by an intruder the green LED will turn off Don t worry your alarm circuit is still working The software running the microcontroller U21 has a shutd...

Страница 17: ...hen the green LED is on and not flashing S2 presses are cumulative unless you turn the slide switch on and off between songs 1 Press and hold down S2 to play Birthday Song 2 Press S2 once then press i...

Страница 18: ...music starts The motor should spin for 3 4 seconds and the fan may rise into the air Part C Now press switch S2 ten times and wait for the green LED to go off The green LED will flash twice and the re...

Страница 19: ...stops the motor M1 should spin for a while and then the fan should launch toward the target Repeat pressing S2 more or less times The more times you press S2 the higher farther the fan should fly See...

Страница 20: ...will be on for a little while Push the press switch again to turn the LED back on Move the lever on the adjustable resistor RV to adjust how long the LED stays on for Adjustable Light Timer 19 This ci...

Страница 21: ...ransistor Q2 Turn on the slide switch S1 Take the circuit into a dark room Shine the flashlight into the photoresistor RP and carefully move the lever on the adjustable resistor RV until the red LED D...

Страница 22: ...is electrical pressure was higher current could be pushed through your fingers and the LED would light This detector can be used to see if materials like plastic wood cloth aluminum or paper are a go...

Страница 23: ...nd compare the LED D1 brightness This circuit has the 100W resistor R1 and 1kW resistor R2 arranged in parallel The smaller 100W resistor controls the brightness in this arrangement You can replace ei...

Страница 24: ...e photoresistor Transistor WARNING Moving parts Do not touch the fan or motor during operation Do not lean over the motor Fan may not rise until switch is released 23 The air is being blown down throu...

Страница 25: ...nd the resistor value 1kW sets how quickly that electricity can be stored or released Capacitor Battery Project A23 Turn on the slide S1 and blow into the microphone X1 The red LED D1 will flicker and...

Страница 26: ...apacitor and photoresistor so the LED stays on longer Transistors allow very small currents to control large currents 25 Turn on the slide switch S1 and press the press switch S2 If there is light on...

Страница 27: ...otor M1 Photo Switcher Project A28 Turn on the slide switch S1 and blow into the microphone X1 The red LED D1 will flicker and you hear static from the speaker SP Talk loudly into the microphone You c...

Страница 28: ...27 Project A30 Build the circuit turn on the slide switch S1 and push the press switch S2 The red LED D1 will be on for a while and then go off Push the press switch again to turn the red LED on agai...

Страница 29: ...ter display based on the decisions For example a microwave oven uses a single micro controller to process information from the keypad display user information on a display and control the turntable mo...

Страница 30: ...not being used Requirements for your computer STEP 1 STEP 2 Windows Users Insert the Programming Cable into a USB port on your computer The Programming Cable will automatically configure itself If you...

Страница 31: ...appear on the dialog box You may also access this file online at the following address http www rev ed co uk software axe027_mac_powerpc dmg zip 2 Once installation is complete the computer will need...

Страница 32: ...the same as you are doing here except the program name will be different Introductory projects A3 A10 require the program Electronic Brain to be loaded in the microcontroller This program was loaded i...

Страница 33: ...een LED D2 blink Try to make the green LED blink at the same rate as the red LED It is probably much easier to let the microcontroller blink the red LED rather than blink the green LED by pressing the...

Страница 34: ...Further page 59 has other useful information The PICAXE Manual Parts 1 2 and 3 has more detailed explanations of the PICAXE commands and other information about PICAXE products however much of this in...

Страница 35: ...am started The programming cable only needs to be connected while downloading a program into the microcontroller Project B2 Blinkers Optional You can change the blink rate by editing the PAUSE times i...

Страница 36: ...troller The circuit performs a little differently Project B3 Four Outputs Optional You can change the blink rate by editing the PAUSE times in the program then re downloading it to the microcontroller...

Страница 37: ...es are available for your PICAXE 08M microcontroller http www rev ed co uk software tunes1_1 zip 450 tunes http www rev ed co uk software tunes2_1 zip 350 tunes http www rev ed co uk software christma...

Страница 38: ...project B1 The microcontroller will play a tune and may flash lights You have a computer music box A Use program Computer Music Box B Use program Make a Sound C Use program Ascending Sound D Use progr...

Страница 39: ...sical tune in the form of an electrical voltage on output 2 The Wait command tells the microcontroller to delay before performing the next instruction The Sound command produces a sequence of musical...

Страница 40: ...Push the press switch S2 and listen to the sounds Optional These programs use the Random command to make cute sounds The random command produces a sequence of numbers that is always the same but we ma...

Страница 41: ...itch S1 Load program Sloppy Switches into the microcontroller U21 using the programming instructions in project B1 Push the press switch S2 several times Each time you press it the red LED D1 should t...

Страница 42: ...LED changes when the press switch is released instead of when the switch is pushed Sometimes hardware cannot be changed but the software program can How could you change the flowchart program to make...

Страница 43: ...ing the programming instructions in project B1 After program is downloaded move the orange jumper wire from the S In snap to the 1 snap as shown Press the F8 key or select Terminal under the PICAXE me...

Страница 44: ...open a terminal window for communication with the microcontroller set the baud rate to 2400 and select Refresh Turn the slide switch S1 off and on to reset the microcontroller Enter any number your La...

Страница 45: ...flashed on the screen at a fast rate Your eyes see this fast series of flashes as a continuous movie This program tells the microcontroller to measure the voltage at input pin 1 then use that value t...

Страница 46: ...ith one of the other resistors Optional Changing the amount of light shining on the photoresistor changes its resistance and so changes the voltage measured at the ADC microcontroller input the readad...

Страница 47: ...switch S2 to charge the 470mF capacitor C5 The microcontroller measures the voltage at the capacitor then displays it as a number in the Terminal When the capacitor is fully charged then 255 will be...

Страница 48: ...es on the photoresistor RP The sound is like a Geiger Counter By changing the program in the microcontroller we can make the same circuit work a lot differently Project B14 Sunrise Alarm Build the cir...

Страница 49: ...under the PICAXE menu to open a terminal window for communication with the microcontroller set the baud rate to 4800 and select Refresh Turn the slide switch S1 off and on to reset the microcontrolle...

Страница 50: ...the F8 key or select Terminal under the PICAXE menu to open a terminal window for communication with the microcontroller set the baud rate to 4800 and select Refresh Turn the slide switch S1 off and...

Страница 51: ...turned off to reset the program and remove the data you must reload the program into the microcontroller After reprogramming you can set the circuit under a lamp measure the light over 6 hours then re...

Страница 52: ...it is taken and stored every six seconds in a data memory location Every 15 minutes a new location is created and this process continues for 24 locations or 6 hours When 24 locations are filled the LE...

Страница 53: ...for 6 seconds when the source is on The green LED will be on for 6 seconds then off for 6 seconds when the source is off If ambient light interferes try using a tube from a roll of toilet paper to shi...

Страница 54: ...is set using the adjustable resistor RV Set the lever on RV to any position then push the press switch S2 to measure and display the voltage Setting the RV lever to the top position will measure the...

Страница 55: ...longer useful Batteries up to 4 0V can be measured Part B This circuit uses the 100W resistor R1 as a load to make sure the battery works properly when current is being drawn from it Remove R1 from th...

Страница 56: ...w for communication with the microcontroller set the baud rate to 4800 and select Refresh Voltage measurements will be displayed in the Terminal To test a battery hold the loose ends of the red black...

Страница 57: ...n the circuit will be more sensitive Now clapping will control the red LED D1 Clap twice or more with a short pause between The red LED D1 should turn on or off If the red LED doesn t change then keep...

Страница 58: ...ime the program is waiting for the 470mF capacitor C5 to charge up Just before the green LED turns on the program measures the level of room background noise If the room is very quiet then the circuit...

Страница 59: ...ress switch S2 to turn off the red LED This confirms the microcontroller is working properly Note If you get a hardware not found error while trying to download a program to the microcontroller Start...

Страница 60: ...th features like simulation and flowcharting The microcontroller you are using has a special programming interface that makes it easy to use This interface called PICAXE was developed by Revolution Ed...

Страница 61: ...ms may be converted to BASIC BASIC programs can be used with Logicator but in an abstract manner Sample Logicator Screen 60 The flowcharts have symbolic commands These are similar to BASIC commands bu...

Страница 62: ...Getting Started manual for more explanation We suggest you begin by viewing the PICAXE Getting Started which can be found under the Help menu The same BASIC programs may be used with the Programming...

Страница 63: ...olar cell Electromagnet Vibration switch Computer interface Snap Circuits Green Model SCG 125 Build over 75 projects Projects relate to electricity in the home and magnetism and how it is used Snaptri...

Страница 64: ...P TM Block 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 600...

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