{"id":9382,"date":"2014-04-20T13:55:09","date_gmt":"2014-04-20T13:55:09","guid":{"rendered":"http:\/\/178.62.14.192\/?p=9382"},"modified":"2014-04-20T13:55:09","modified_gmt":"2014-04-20T13:55:09","slug":"seven-segments-of-pi-in-the-classroom-part-6","status":"publish","type":"post","link":"https:\/\/www.recantha.co.uk\/blog\/?p=9382","title":{"rendered":"Seven Segments of Pi in the Classroom (Part 6)"},"content":{"rendered":"

Another guest post from Nevil Hunt, creator of the Seven Segments of Pi<\/em><\/p>\n

\"FromJamboreeToCamJam_Banner\"<\/a><\/p>\n

Part 6 – Soldering is Fun! But respect the 300oC end!<\/strong><\/p>\n

Last week I talked about how in the PiDice<\/em><\/strong> Workshop pupils learnt how to write Python to control:-<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GPIO as Inputs<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GPIO as Outputs<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Time Delays<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Random Numbers<\/p>\n

And in the PiStopWatch<\/em><\/strong> Workshop pupils learnt how to write Python to generate:-<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Sound Effects<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 State Machines<\/p>\n

Giving them the software skills needed to write their first computer game\u2026<\/p>\n

\"Figure_Eight_My_Pi_without_Graphics\"<\/a><\/p>\n

Writing the PiDice Software took the Year 8 pupils a single 1.5 hour Workshop. Writing the PiStopWatch Software took the pupils two<\/em> 1.5 hour Workshops. Writing the software for the game \u201cFigure Eight My Pi\u201d would be more demanding! To complete it they needed to write most of the software in their own time\u2026so they needed their own Raspberry Pi\u2026and their own \u201cSeven Segments of Pi\u201d! That meant the Breadboard \u201cSeven Segments of Pi\u201d\u2026<\/p>\n

\"SevenSegmentsMarkII\"<\/a><\/p>\n

\u2026 and Veroboard \u201cSeven Segments of Pi\u201d\u2026<\/p>\n

\"veroboard<\/a><\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

\u2026would need to be made into a Printed Circuit Board!<\/p>\n

I spoke to my friends at\u2026<\/p>\n

\"ALS\"<\/a><\/p>\n

 <\/p>\n

\u2026who for nearly 20 years have been doing my PCB Layouts. They agreed to do the PCB Layout for free!<\/p>\n

I then spoke to my friends at\u2026<\/p>\n

\"Merlin\"<\/a><\/p>\n

 <\/p>\n

\u2026who agreed to make the PCB\u2019s for free!<\/p>\n

I wanted the PCB to have the look and feel of a games console \u2013 possibly the simplest games console in the world?<\/em><\/strong> I also wanted the pupils to assemble the electronics themselves. I wanted to show them\u2026<\/p>\n

\u201dSoldering is fun!\u201d<\/strong><\/p>\n

The electronics needed to be clearly laid out to aid assembly. Unfortunately many electronic components can be fitted onto a PCB either way round\u2026but will only work<\/em><\/strong> when fitted the right<\/em><\/strong> way round! So I added silk screen marking on the PCB to make the orientation of the components as clear as possible!<\/p>\n

With the PCB layout completed at ALS in Berkshire the design files were sent up to Merlin in Deeside for fabrication. A week later the PCB\u2019s arrived!<\/p>\n

\"Seven_Segments_of_Pi_Blank_PCB\"<\/a><\/p>\n

 <\/p>\n

 <\/p>\n

By now, in addition to the Year 8 Workshops at Kennet School, I was also running Workshops with Year 6 pupils at Blewbury Primary in Berkshire and Cholsey Primary in Oxfordshire.<\/p>\n

At Kennet School in Thatcham their Design & Technology Dept kindly allowed us to use their soldering irons\u2026<\/p>\n

\"Soldering1\"<\/a><\/p>\n

 <\/p>\n

At the Primary Schools I supplied 3 soldering irons for the pupils to use. Most of the pupils had never soldered anything before but they loved it!<\/p>\n

\"Soldering2\"<\/a><\/p>\n

 <\/p>\n

Although one pupil never did get the hang of returning the soldering iron to its stand! He seemed to treat it like a pencil, and kept putting it straight down on the table\u2026forgetting that the tip was at nearly 300o<\/sup>C!!!<\/em><\/strong> A bit of supervision was therefore necessary!<\/p>\n

Essential tools in addition to the soldering iron and solder were a pair of wire cutters\u2026<\/p>\n

\"WireCutters\"<\/a><\/p>\n

 <\/p>\n

and small pliers\u2026<\/p>\n

\"Pliers\"<\/a><\/p>\n

It took the pupils two<\/em> 1.5 hour Workshops to assemble and solder their \u201cSeven Segments of Pi\u201d PCB\u2019s\u2026but they didn\u2019t all work first time! Most faults could be spotted by a close visual inspection so I gave them a magnifying glass\u2026<\/p>\n

\"Magnifying_Glass\"<\/a><\/p>\n

\u2026to check their soldering!<\/p>\n

Common faults included<\/p>\n

A)<\/strong>\u00a0 – Solder joints not soldered.<\/p>\n

B)<\/strong>\u00a0 – Solder joints poorly soldered.<\/p>\n

C)<\/strong>\u00a0 – Solder shorts.<\/p>\n

D)<\/strong>\u00a0 – Component wires shorting.<\/p>\n

\"Solder_Faults\"<\/a><\/p>\n

 <\/p>\n

Most of these could be rectified just using the soldering iron, pliers and\/or cutters, but for some large solder blobs I used a solder-sucker\u2026<\/p>\n

\"SolderSucker\"<\/a><\/p>\n

 <\/p>\n

or desoldering braid\u2026<\/p>\n

\"Desoldering_Braid\"<\/a><\/p>\n

 <\/p>\n

I know not all schools have access to soldering irons hence I plan to offer \u201cSeven Segments of Pi\u201dboards both in kit form<\/strong> and pre-assembled.<\/strong> I want as many pupils as possible to have the chance to take on the challenge! But where schools can<\/em><\/strong> organise access to soldering irons, soldering the kit adds an extra dimension to the challenge! Even if their \u201cSeven Segments of Pi\u201d boards don\u2019t work first time there is an extra sense of achievement when they find the fault, correct the fault and then<\/em><\/strong> it works! And when they write their software, they are not writing software to run on a<\/em><\/strong> \u201cSeven Segments of Pi\u201d board, they are writing software to run on their<\/em><\/strong> \u201cSeven Segments of Pi\u201d board!<\/p>\n

The pupils now had their own \u201cSeven Segments of Pi\u201d board\u2026<\/p>\n

\"Soldering3\"<\/a><\/p>\n

 <\/p>\n

They now needed an SD Card\u2026<\/p>\n

\"SSPi_SDCard\"<\/a><\/p>\n

 <\/p>\n

\u2026so they could write their \u201cFigure Eight My Pi\u201d software! But the SD Cards would be plugged into the school\u2019s Raspberry Pi during the Workshop then plugged into their own Raspberry Pi when they got home! It had to work in both!! And it had to still be in their possession when they got home!!! So next week I will describe some of the technical and practical challenges I faced running a Raspberry Pi Workshop in which pupils were encouraged to carry on writing their software at home. This Blog will be entitled\u2026<\/p>\n

\u201dNOOBS to the rescue! \u2026but Mr Hunt \u2013 I\u2019ve lost my SD Card!\u201d<\/strong><\/p>\n

If you are interested in learning more about the Seven Segments of Pi visit my Web Site www.SevenSegmentsOfPi.com<\/a> or watch the \u201cSeven Segments of Pi\u201d YouTube Video<\/a>. You can also watch Carrie Anne Philbin playing \u201cFigure Eight My Pi\u201d<\/a> at the CamJam, courtesy of Alex at RasPi TV.<\/p>\n","protected":false},"excerpt":{"rendered":"

Another guest post from Nevil Hunt, creator of the Seven Segments of Pi Part 6 – Soldering is Fun! But respect the 300oC end! Last week I talked about how in the PiDice Workshop pupils learnt how to write Python…<\/p>\n

Read more →<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[17,20],"tags":[],"class_list":["post-9382","post","type-post","status-publish","format-standard","hentry","category-education","category-gpio-boards"],"yoast_head":"\nSeven Segments of Pi in the Classroom (Part 6) - Raspberry Pi Pod<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.recantha.co.uk\/blog\/?p=9382\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Seven Segments of Pi in the Classroom (Part 6) - Raspberry Pi Pod\" \/>\n<meta property=\"og:description\" content=\"Another guest post from Nevil Hunt, creator of the Seven Segments of Pi Part 6 – Soldering is Fun! But respect the 300oC end! 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I am going to be busy this year getting \u201cThe PiTrol\u201d and \u201cPiDapter\u201d ready\u2026but I found some willing pupils who I met at the Jamboree keen to test-drive these kits!\u2026","rel":"","context":"In "GPIO boards"","block_context":{"text":"GPIO boards","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=20"},"img":{"alt_text":"FromJamboreeToCamJam_Banner","src":"\/blog\/wp-content\/uploads\/2014\/04\/FromJamboreeToCamJam_Banner1.jpg","width":350,"height":200},"classes":[]},{"id":9588,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=9588","url_meta":{"origin":9382,"position":2},"title":"Seven Segments of #RaspberryPi in the Classroom (part 9 – Final part!)","author":"Michael Horne","date":"9 May 2014","format":false,"excerpt":"This is the final part of the Seven Segments of Pi series we've been running over the past few weeks. A massive Thank You! to Nevil Hunt for taking the time to share his adventures! Part 9 - Have the Audacity to make your own sound effects! ... D'oh! There's\u2026","rel":"","context":"In "Education"","block_context":{"text":"Education","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=17"},"img":{"alt_text":"FromJamboreeToCamJam_Banner","src":"\/blog\/wp-content\/uploads\/2014\/04\/FromJamboreeToCamJam_Banner1.jpg","width":350,"height":200},"classes":[]},{"id":9459,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=9459","url_meta":{"origin":9382,"position":3},"title":"Seven Segments of Pi in the Classroom (part 7)","author":"Michael Horne","date":"27 April 2014","format":false,"excerpt":"Another guest post from Nevil Hunt of Seven Segments of Pi. Part 7 - \"NOOBS to the rescue! \u2026but Mr Hunt \u2013 I\u2019ve lost my SD Card!\" Last week I talked about the fun of soldering! This week I will describe some of the technical and practical challenges I faced\u2026","rel":"","context":"In "GPIO boards"","block_context":{"text":"GPIO boards","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=20"},"img":{"alt_text":"FromJamboreeToCamJam_Banner","src":"\/blog\/wp-content\/uploads\/2014\/04\/FromJamboreeToCamJam_Banner1.jpg","width":350,"height":200},"classes":[]},{"id":9526,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=9526","url_meta":{"origin":9382,"position":4},"title":"Seven Segments of Pi (Part 8)","author":"Michael Horne","date":"6 May 2014","format":false,"excerpt":"Part 8 - Count to 10 and Figure Eight My Pi! Last week I talked about the technical and practical challenges of running Raspberry Pi Workshops in schools. This week it\u2019s back to the fun of writing software! It\u2019s about how pupils were inspired to come up with their own\u2026","rel":"","context":"In "Education"","block_context":{"text":"Education","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=17"},"img":{"alt_text":"PiDice","src":"\/blog\/wp-content\/uploads\/2014\/04\/PiDice1.jpg","width":350,"height":200},"classes":[]},{"id":8201,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=8201","url_meta":{"origin":9382,"position":5},"title":"Seven Segments of Pi – From Raspberry Jamboree to CamJam (Part 2)","author":"Michael Horne","date":"5 March 2014","format":false,"excerpt":"This week I was going to talk about VGA Adapters for the Raspberry Pi but about 10 days ago Mike emailed me to say \u201cAre you going to the Manchester Jamboree?\u201d I must admit at the time it wasn\u2019t on my radar! So I looked up the Web Site and\u2026","rel":"","context":"In "Education"","block_context":{"text":"Education","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=17"},"img":{"alt_text":"FromJamboreeToCamJam_Banner","src":"\/blog\/wp-content\/uploads\/2014\/04\/FromJamboreeToCamJam_Banner1.jpg","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/9382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9382"}],"version-history":[{"count":0,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/9382\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}