Kitronik PROGRAMMABLE MUSIC BOX KIT Manual Download Page 9 | Manualshive

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Programmable Music Box Teaching Resources

www.kitronik.co.uk/2122

Developing a Specification

Using your research into the target market for the product, identify the key requirements for the product and
explain why each of these is important.

Name

Class

Requirement

Reason

Example: The box should have some
holes in it.

Example: So that the sound can be heard.

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Summary of Contents for PROGRAMMABLE MUSIC BOX KIT

Page 1: ...PROGRAMMABLE MUSIC BOX KIT ADD A TUNE TO YOUR PRODUCT WITH THIS TEACHING RESOURCES SCHEMES OF WORK DEVELOPING A SPECIFICATION COMPONENT FACTSHEETS HOW TO SOLDER GUIDE Version 2 0 ...

Page 2: ... Investigation Research Developing a Specification Design Design Review group task Soldering in Ten Steps Resistor Values Why Use a PIC Micro controller Instruction Manual Evaluation Packaging Design ESSENTIAL INFORMATION Build Instructions Checking Your Music Box PCB Testing the PCB Fault Finding Designing the Enclosure Programming Task How the Music Box Hardware Works Online Information ...

Page 3: ...aterial to aid the teacher in either case Using the booklet The first few pages of this booklet contains information to aid the teacher in planning their lessons and also covers worksheet answers The rest of the booklet is designed to be printed out as classroom handouts In most cases all of the sheets will not be needed hence there being no page numbers teachers can pick and choose as they see fi...

Page 4: ...onsidered on any design project Hour 3 Read Designing the Enclosure sheet Develop a product design using the Design sheet Homework Complete design Hour 4 Split the students into groups and get them to perform a group design review using the Design Review sheet Hour 5 Using the Soldering in Ten Steps sheet demonstrate and get students to practice soldering Start the Resistor Value worksheet Homewor...

Page 5: ...he completed PCB and fault find if required using Checking Your Music Box PCB and fault finding flow chart Hour 4 Programming task Play music when switch opened Answers Resistor questions 1st Band 2nd Band Multiplier x Value Brown Black Yellow 100 000 Green Blue Brown 560 Brown Grey Yellow 180 000 Orange White Black 39 Value 1st Band 2nd Band Multiplier x 180 Brown Grey Brown 3 900 Orange White Re...

Page 6: ... will allow you to focus on specifics at the design stage and to evaluate your design Missing a key point from a specification can result in a product that does not fulfil its required task Design Develop your ideas and produce a design that meets the requirements listed in the specification At this stage it is often normal to prototype some of your ideas to see which work and which do not Build B...

Page 7: ...s opened or when a coin is dropped into a money box The manufacturer would like you to research and select a particular use for the circuit They would then like you to produce a design that is suitable for that use The design must meet all of the requirements of the selected target market Description of the music box Once the switch is activated it plays a tune As the music box is programmable the...

Page 8: ...Box Teaching Resources www kitronik co uk 2122 Investigation Research Using a number of different search methods find examples of similar products that are already on the market Use additional pages if required Name Class ...

Page 9: ... a Specification Using your research into the target market for the product identify the key requirements for the product and explain why each of these is important Name Class Requirement Reason Example The box should have some holes in it Example So that the sound can be heard ...

Page 10: ...Programmable Music Box Teaching Resources www kitronik co uk 2122 Design Develop your ideas to produce a design that meets the requirements listed in the specification Name Class ...

Page 11: ...to see if you can spot any additional aspects of each design that may cause problems with the final product This will allow you to ensure that you have a good design and catch any faults early in the design process Note each point that is made and the reason behind it Decide if you are going to accept or reject the comment made Use these points to make improvements to your initial design Comment R...

Page 12: ...dering iron has warmed up and if necessary use the damp sponge to clean the tip 5 Place the soldering iron on the pad 6 Using your free hand feed the end of the solder onto the pad top picture 7 Remove the solder then the soldering iron 8 Leave the joint to cool for a few seconds 9 Using a pair of cutters trim the excess component lead middle picture 10 If you make a mistake heat up the joint with...

Page 13: ...ck 0 0 1 Brown 1 1 10 1 Red 2 2 100 2 Orange 3 3 1000 Yellow 4 4 10 000 Green 5 5 100 000 Blue 6 6 1 000 000 Violet 7 7 Grey 8 8 White 9 9 Example Band 1 Red Band 2 Violet Band 3 Orange Band 4 Gold The value of this resistor would be 2 Red 7 Violet x 1 000 Orange 27 x 1 000 27 000 with a 5 tolerance gold 27K Resistor identification task Calculate the resistor values given by the bands shown below ...

Page 14: ...easured will be within 5 of its stated value Tolerances are important if the accuracy of a resistors value is critical to a design s performance Preferred values There are a number of different ranges of values for resistors Two of the most popular are the E12 and E24 They take into account the manufacturing tolerance and are chosen such that there is a minimum overlap between the upper possible v...

Page 15: ...ery easy to make minor alterations to the function of the product o For instance changing the tune that is played Flexibility The circuit could easily be used for a completely different function by simply re writing the software Easy to develop and debug Most software packages allow you to simulate the software while it is being developed making it much more likely to work when used It is also pos...

Page 16: ...22 Instruction Manual Your music box is going to be supplied with some instructions Identify four points that must be included in the instructions and give a reason why Point to include Reason Point to include Reason Point to include Reason Point to include Reason ...

Page 17: ...specification Show your product to another person in real life this person should be the kind of person at which the product is aimed Get them to identify aspects of the design which parts they like and aspects that they feel could be improved Good aspects of the design Areas that could be improved Improvements Every product on the market is constantly subject to redesign and improvement What aspe...

Page 18: ...If your product was to be sold in a high street electrical retailer what requirements would the packaging have List these giving the reason for the requirement Requirement Reason Develop a packaging design for your product that meets these requirements Use additional pages if required ...

Page 19: ...PROGRAMMABLE MUSIC BOX KIT ADD A TUNE TO YOUR PRODUCT WITH THIS ESSENTIAL INFORMATION BUILD INSTRUCTIONS CHECKING YOUR PCB FAULT FINDING MECHANICAL DETAILS HOW THE KIT WORKS Version 2 0 ...

Page 20: ...ide The red wire must go to the terminal also marked red and the black wire must go to the terminal also marked black The buzzer should be soldered into the SOUNDER terminal First start by feeding the wire through the strain relief hole feed from the solder side The red wire must go to the terminal also marked red and the black wire must go to the terminal also marked black Cut and strip two piece...

Page 21: ...tery connector goes to the terminal on the power terminals and the black wire goes to the terminal Testing the PCB The circuit has been designed to allow easy testing of the PCB To test the PCB you will first have to insert a chip programmed with some software to allow it to be tested The purpose of the test program is to test that the buzzer can sound and that the switch is functioning used to tu...

Page 22: ...ry join on any of the 3 pins on the PROG connection IC1 for dry joints on pins 2 or 7 IC1 for shorts between pins 2 3 or 7 8 No Stop Yes Start Power the board and wait for 10 seconds Did the buzzer sound straight away No There is a dry joint on R2 Eventually the buzzer worked Does the buzzer sound very quiet Check The sounder connections for a dry joint The batteries are good IC1 pins 1 5 8 for dr...

Page 23: ...o the batteries to allow them to be changed below right Technical drawings of these items are illustrated on this page which should help you to design your enclosure All dimensions are in mm Mounting the PCB to the enclosure The drawing to the left shows how a hex spacer can be used with two bolts to fix the PCB to the enclosure Your PCB has four mounting holes designed to take M3 bolts 47 57 25 2...

Page 24: ...When the button is opened or closed if required the buzzer will play a musical tune Student guides available online To guide students through the programming task detailed above an electronic guide can be run or downloaded from our website This guide runs in any web browser so you don t need to install any software however the files can be copied onto the PC if you don t have internet access It is...

Page 25: ...ltage on the PIC pin is pulled up to a high voltage You will be able to read this change of state in your software Input 2 has been left as a spare input should you wish to add another input device The pull down resistor R5 which is the same as that used on Input 1 would need to be added The sounder buzzer that has been used in the circuit does not have any drive circuitry This means that it needs...

Page 26: ...t educational schemes of work and so on and also includes the essentials Download from www kitronik co uk 2122 Every effort has been made to ensure that these notes are correct however Kitronik accept no responsibility for issues arising from errors omissions in the notes Kitronik Ltd Any unauthorised copying duplication of this booklet or part thereof for purposes except for use with Kitronik pro...

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