{"id":9526,"date":"2014-05-06T08:31:45","date_gmt":"2014-05-06T08:31:45","guid":{"rendered":"http:\/\/178.62.14.192\/?p=9526"},"modified":"2014-05-06T08:31:45","modified_gmt":"2014-05-06T08:31:45","slug":"seven-segments-of-pi-part-8","status":"publish","type":"post","link":"https:\/\/www.recantha.co.uk\/blog\/?p=9526","title":{"rendered":"Seven Segments of Pi (Part 8)"},"content":{"rendered":"

Part 8 – Count to 10 and Figure Eight My Pi!<\/h2>\n

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 ideas and how I came up with a game to play on the Seven Segments of Pi! This Blog is entitled\u2026<\/p>\n

\u201dCount to 10 then Figure Eight My Pi!\u201d<\/strong><\/p>\n

When running the\u2026<\/p>\n

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

\u2026workshop some pupils realised that, whilst a normal dice has 6 sides, hence when thrown can only give a number up to 6, a PiDice does not have this limitation! A single digit Seven Segment Display can display any number up to 9. So some pupils modified their PiDice software to give a random number from 1 to 9.<\/p>\n

When running the\u2026<\/p>\n

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

\u2026workshop a single digit was more of a limitation. The StopWatch could only count to 9. But one pupil proudly said to me \u201cI\u2019m going to make my PiStopWatch count to 10!\u201d I explained to him he would need a two digit Seven Segment Display to display two digit numbers but undeterred, he declared he was going to do it anyway! 15 minutes later he called me over. \u201cI\u2019ve done it Mr Hunt!\u201d he said. I went over and saw his display showing the number \u20180\u2019. He pressed the red PushButton and his PiStopWatch counted 1\u20262\u20263\u20264\u20265\u20266\u20267\u20268\u20269\u2026then it displayed\u2026<\/p>\n

\"Seven_Segments_of_Pi_Unrotated_Displaying_10\"<\/a><\/p>\n

\u2026which when rotated 90 degrees looked like this\u2026<\/p>\n

\"Seven_Segments_of_Pi_Rotated_Displaying_10\"<\/a><\/p>\n

He was right! He had made it count to 10! He had realised that having individual control of all seven segments meant he was not limited to just displaying conventional numbers. He could illuminate any<\/em><\/strong> combination of the segments\u2026and he had realised that this<\/em><\/strong> combination when rotated 90 degrees looked like the number 10!<\/p>\n

This was a wonderful moment! It prompted me to tell them about the hexadecimal numbering system<\/em><\/strong>, widely used in electronics and software as a shorthand way to write binary numbers, where the numbers 10,11,12,13,14,15 are represented by the letters A,B,C,D,E,F\u2026and how these too can be displayed on a single digit Seven Segment Display so long as they are represented as A,b,C,d,E,F. Maybe because they now saw themselves as budding Software Engineers, they were fascinated to know about the way computers count!<\/p>\n

When I first came up with the idea of using a Seven Segment Display to teach the basics of programming I quickly had the idea of making it act as a Dice or as a StopWatch, but I wondered if I could come up with a game. I think games are a great way to learn! In my STEM Ambassadors lessons I\u2019ve come up with a dice game called \u201cNumba Jumba!<\/em><\/strong>\u201d to practice mental maths and a card game alternative to \u201cConnect Four\u201d called \u201cConnect Ten to the Power Minus Four!<\/em><\/strong>\u201d But how could I make a game using just Seven Segments?<\/p>\n

I remembered my old\u2026<\/p>\n

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

\u2026set and how I started with an oval\u2026<\/p>\n

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

\u2026then was given a few more curves and straights to make a figure eight\u2026<\/p>\n

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

So I imagined a single segment appearing to going round the display in a figure zero\u2026<\/p>\n

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

\u2026and then in a figure eight\u2026<\/p>\n

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

It could be programmed as a \u2018State Machine<\/strong>\u2019 similar to the PiStopWatch. Sound Effects<\/strong> introduced in the PiStopWatch could make it sound like a game. Then if it were to randomly switch between \u2018figure zero\u2019 and \u2018figure eight\u2019 using the \u2018Random Number<\/strong>\u2019 function from the PiDice with the player having to press the PushButton when the centre segment was illuminated, it would become a game!<\/p>\n

I asked my son, Matt Hunt who is a Car Designer, if he could come up with a cartoon character looking a bit like a Seven Segment Display to go with the game and whilst chatting to him in Munich via Skype he sketched\u2026<\/p>\n

\"PiSeg1\"<\/a><\/p>\n

\u2026which I christened \u2018The PiSeg!\u2019<\/p>\n

Describing the single segment going round the display as \u2018The PiSeg\u2019 and the \u201cnom, nom, nom\u201d sound effect was it munching on a Raspberry I had the game\u2026<\/p>\n

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

Next week in the final part of this series of Blogs I will describe the fun the pupils had writing the software for their version of the game (and return to the thorny issue of sound from the Raspberry Pi when using a VGA Adapter). This Blog will be called\u2026<\/p>\n

“Have the Audacity to make your own sound effects!…D\u2019oh! There\u2019s no sound!”<\/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

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

Nevil Hunt
\nInnovations in Education<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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…<\/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_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_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}},"categories":[17,20],"tags":[],"class_list":["post-9526","post","type-post","status-publish","format-standard","hentry","category-education","category-gpio-boards"],"yoast_head":"\nSeven Segments of Pi (Part 8) - 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=9526\" \/>\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 (Part 8) - Raspberry Pi Pod\" \/>\n<meta property=\"og:description\" content=\"Part 8 – Count to 10 and Figure Eight My Pi! 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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":8677,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=8677","url_meta":{"origin":9526,"position":3},"title":"Seven Segments of Pi – From Jamboree to CamJam (Part 3)","author":"Michael Horne","date":"12 March 2014","format":false,"excerpt":"After last week's\u2026 I have returned with more ideas for Raspberry Pi add-ons\u2026but they might have to wait until 2015! 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":9459,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=9459","url_meta":{"origin":9526,"position":4},"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":10176,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=10176","url_meta":{"origin":9526,"position":5},"title":"Seven Segments of Pi at the BBC","author":"Michael Horne","date":"27 June 2014","format":false,"excerpt":"Guest post from Nevil Hunt of Innovations in Education I have been invited to the BBC\/Google \u201cComputing for a new Generation\u201d Conference at Media City on the 2nd July where I will be demonstrating\u2026 A - Seven Segments of Pi \u2013 \u201cPossibly the Simplest Games Console in the World!\u201d Write\u2026","rel":"","context":"In "GPIO boards"","block_context":{"text":"GPIO boards","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=20"},"img":{"alt_text":"SevenSegmentsOfPi_AtTheBBC","src":"\/blog\/wp-content\/uploads\/2014\/06\/SevenSegmentsOfPi_AtTheBBC1.jpg","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/9526","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=9526"}],"version-history":[{"count":0,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/9526\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}