{"id":8975,"date":"2014-03-25T11:21:04","date_gmt":"2014-03-25T11:21:04","guid":{"rendered":"http:\/\/178.62.14.192\/?p=8975"},"modified":"2014-03-25T11:21:04","modified_gmt":"2014-03-25T11:21:04","slug":"seven-segments-of-pi-all-our-monitors-are-vga","status":"publish","type":"post","link":"https:\/\/www.recantha.co.uk\/blog\/?p=8975","title":{"rendered":"Seven Segments of Pi – All our monitors are VGA! (Part 4)"},"content":{"rendered":"

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

Last week I described how in June 2012 pupils had modified some Python Software on the Raspberry Pi to make the attached Seven Segment Display count to \u2026<\/span><\/p>\n

\"Seven_Segments_of_Pi_Assy_LED_Displaying_4\"<\/a><\/p>\n

\u2026and I realised I had something which answered the pupil\u2019s question\u2026<\/p>\n

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

“Yes! …but what does it do<\/i>!?”<\/b><\/p>\n

\u00a0\u2026something I could use for Raspberry Pi Workshops in schools!<\/p>\n

I still only had one Raspberry Pi, but I had plans to buy at least 2 more. With 3 Raspberry Pi\u2019s I could probably run Workshops with up to 9 pupils. But whilst I could buy 3 Raspberry Pi\u2019s, I didn\u2019t have 3 Keyboards, Mice and Monitors.<\/p>\n

Keyboards and Mice were easy. Most schools had plenty of USB Keyboards and Mice for me to borrow, but as soon as the teachers realised the only usable video output connector on the Raspberry Pi was HDMI\u2026<\/p>\n

\u00a0\"HDMI\"<\/a>\u00a0\u2026I got the immediate response\u2026<\/p>\n

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

\u201dYes! …but all our monitors are VGA!\u201d<\/b><\/p>\n

\u2026and there was no way schools were going to buy loads of HDMI TV\u2019s just to run a few Raspberry Pi Workshops!<\/p>\n

\u00a0This seemed to be a bit of a road-block! I might be able to borrow 2 or 3 HDMI TV\u2019s to run some workshops but it looked like a big barrier to the general acceptance of Raspberry Pi\u2019s in schools!<\/p>\n

A little bit of research was required! I had never taken much notice of how my PC attached to its monitor. I was familiar with the VGA input, but I found my PC\u2019s monitor also had a DVI input\u2026<\/p>\n

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

\u2026and that HDMI and DVI signals were compatible. So I attached my Raspberry Pi to the DVI input on my Monitor with a simple HDMI-to-DVI Cable\u2026<\/p>\n

\"HDMI-to-DVI\"<\/a><\/p>\n

\u2026and it worked!<\/p>\n

I went back into schools to see if they too had DVI as well as VGA inputs on their monitors. Unfortunately most did not! \u201cWhen we bought our PC\u2019s, we had to buy the lowest cost monitors, and they were the VGA-only ones!\u201d was the usual answer.<\/p>\n

At one school however the teacher said \u201cI\u2019ve got an HDMI-to-VGA Adapter box in the car\u201d It was worth a go. It was a bit cumbersome since it had to be mains powered, but it prompted me to search for other HDMI-to-VGA Adapters.<\/span><\/p>\n

Searching on Amazon I found this self-powered adapter made in the far-east by \u201cNeewer\u201d**\u2026<\/span><\/p>\n

\"HDMI-to-VGA\"<\/a><\/p>\n

\u2026with a user comment saying they had successfully made it work with their Raspberry Pi by modifying the Raspberry Pi\u2019s \u201cconfig.txt\u201d file. It was only \u00a312.99 so I ordered one.<\/p>\n

It worked! I now knew I could run Raspberry Pi Workshops in schools. But what is more, I could tell schools\u2026<\/p>\n

\u201cYou don\u2019t need<\/i> HDMI Monitors to use Raspberry Pi\u2019s in schools!\u201d<\/b><\/p>\n

**The use of the original \u201cNeewer\u201d Adapters was not entirely trouble free as I will describe in a later blog entitled \u201cDoh! There\u2019s no sound!\u201d <\/b>but their current version may be OK. I have also tested 3 other HDMI-to-VGA Adapters and all three have aspects I think could be better so I have asked for clarification from the manufacturers. Hopefully by the end of this series of Blogs I can recommend at least one HDMI-to-VGA Adapter!<\/i><\/p>\n

Next week I will look at how I developed a more comprehensive set of Software Challenges (and ordered a couple more Raspberry Pi\u2019s) so I could run Raspberry Pi Workshops in Schools in a Blog entitled\u2026<\/span><\/p>\n

\u201dWhat can you do with just Seven Segments?\u201d<\/b><\/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<\/p>\n

Innovations in Education<\/a><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Last week I described how in June 2012 pupils had modified some Python Software on the Raspberry Pi to make the attached Seven Segment Display count to \u2026 \u2026and I realised I had something which answered the pupil\u2019s question\u2026 “Yes!…<\/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-8975","post","type-post","status-publish","format-standard","hentry","category-education","category-gpio-boards"],"yoast_head":"\nSeven Segments of Pi - All our monitors are VGA! 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Teacher Allen Heard has now written some proper lesson plans\u00a0using Seven Segs and sent them to Nevil who has hosted them on\u2026","rel":"","context":"In "Education"","block_context":{"text":"Education","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=17"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.nevilhunt.com\/innovationsineducation\/sevensegmentsofpi\/res\/img\/cover.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":9382,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=9382","url_meta":{"origin":8975,"position":1},"title":"Seven Segments of Pi in the Classroom (Part 6)","author":"Michael Horne","date":"20 April 2014","format":false,"excerpt":"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 to control:- -\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GPIO as Inputs -\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GPIO as Outputs\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":8975,"position":2},"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":8201,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=8201","url_meta":{"origin":8975,"position":3},"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":[]},{"id":9236,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=9236","url_meta":{"origin":8975,"position":4},"title":"Seven Segments of Pi in the classroom (Part 5)","author":"Michael Horne","date":"7 April 2014","format":false,"excerpt":"Another guest post from Nevil Hunt, creator of the Seven Segments of Pi Last week I talked about some of the practical barriers to using the Raspberry Pi in the Classroom with many teachers believing they needed to upgrade their monitors to HDMI at the cost of \u00a3\u00a3\u00a3 not realising\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":7978,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=7978","url_meta":{"origin":8975,"position":5},"title":"From Jamboree to CamJam \u2013 Seven Segments of Pi in the Classroom – #RaspberryPi in Education","author":"Michael Horne","date":"23 February 2014","format":false,"excerpt":"With this week\u2019s Manchester Jamboree and next May\u2019s Cambridge Raspberry Jam both focussing on the Raspberry Pi\u2019s potential within education, I have invited Nevil Hunt from Innovations in Education to write for me a weekly series of blog posts describing his experience of nearly 2 years running Raspberry Pi Workshops\u2026","rel":"","context":"In "Education"","block_context":{"text":"Education","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=17"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/learningsc2.com\/wp-content\/uploads\/2011\/04\/Guest-Writer.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/8975","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=8975"}],"version-history":[{"count":0,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/8975\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}