{"id":141,"date":"2020-03-23T14:26:56","date_gmt":"2020-03-23T14:26:56","guid":{"rendered":"https:\/\/uni.hi.is\/martin\/?p=141"},"modified":"2020-03-23T14:31:02","modified_gmt":"2020-03-23T14:31:02","slug":"sjominjasafnsbatur","status":"publish","type":"post","link":"https:\/\/uni.hi.is\/martin\/2020\/03\/23\/sjominjasafnsbatur\/","title":{"rendered":"Sj\u00f3minjasafnsb\u00e1tur"},"content":{"rendered":"

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

Fyrir nokkru haf\u00f0i Sj\u00f3minjasafni\u00f0 samband vi\u00f0 okkur \u00ed V\u00edsindasmi\u00f0junni um a\u00f0 a\u00f0sto\u00f0a \u00feau vi\u00f0 a\u00f0 b\u00faa til n\u00e1tt\u00farufr\u00e6\u00f0itengt fr\u00e6\u00f0sluefni fyrir sk\u00f3lah\u00f3pa sem \u00feau taka \u00e1 m\u00f3ti. Vi\u00f0 f\u00f3rum \u00ed heims\u00f3kn \u00e1 s\u00fdninguna \u00feeirra, Fiskur og f\u00f3lk, sem er hin skemmtilegasta og vel \u00feess vir\u00f0i a\u00f0 k\u00edkja \u00e1, og settum nokkrar hugmyndir ni\u00f0ur \u00e1 bla\u00f0.<\/p>\n

Eftir a\u00f0 hafa kasta\u00f0 \u00feessu \u00e1 milli okkar var \u00e1kve\u00f0i\u00f0 a\u00f0 \u00fatb\u00fanar yr\u00f0u fimm st\u00f6\u00f0var: Trissur, bylgjuberi, ???, sextant, og ... b\u00e1tur.<\/p>\n

Me\u00f0 b\u00e1tnum vildum vi\u00f0 f\u00e1 gesti til a\u00f0 hugsa um orkun\u00fdtingu og \u00f6fugt hlutfall hra\u00f0a og n\u00fdtni. B\u00e1turinn er me\u00f0 einf\u00f6ldu vi\u00f0m\u00f3ti: Hra\u00f0ast\u00fdringu og hnappi til a\u00f0 r\u00e6sa b\u00e1tinn. Ey\u00f0sla b\u00e1tsins fer eftir hra\u00f0anum: \u00dev\u00ed hra\u00f0ar sem hann fer, \u00fev\u00ed styttra kemst hann \u00e1 einum \"tanki\". Verkefni\u00f0 gengur svo \u00fat \u00e1 \u00fea\u00f0 a\u00f0 n\u00e1 yfir \"hafi\u00f0\" \u00e1 sem stystum t\u00edma.<\/p>\n

Sj\u00f3minjasafni\u00f0 f\u00e9kk \u00fe\u00fasund\u00fejalasmi\u00f0 til a\u00f0 sm\u00ed\u00f0a t\u00f3lin eftir forskrift fr\u00e1 okkur, en ba\u00f0st undan \u00fev\u00ed a\u00f0 forrita b\u00e1tinn svo \u00e9g bau\u00f0st til a\u00f0 sj\u00e1 um \u00fea\u00f0.<\/p>\n

Frumger\u00f0<\/p>\n

Til a\u00f0 prufa hvort \u00feetta virka\u00f0i, bj\u00f3 \u00e9g til einfalda st\u00fdringu \u00far Arduino Uno v\u00e9l sem vi\u00f0 \u00e1ttum til, \u00e1samt L298N H-br\u00fa og ni\u00f0urg\u00edru\u00f0um hobb\u00edm\u00f3tor. \u00deessu stakk \u00e9g svo \u00ed frumger\u00f0 b\u00e1tsins en \u00fe\u00e1 kom \u00e1 daginn a\u00f0 \u00ed h\u00e6gustu stillingu orka\u00f0i m\u00f3torinn ekki a\u00f0 kn\u00fdja b\u00e1tinn \u00e1fram.<\/p>\n

Einnig f\u00f3r m\u00e9r a\u00f0 \u00feykja 9 V rafhla\u00f0an heldur \u00f3\u00e1rei\u00f0anleg \u00fatg\u00e1fa. M\u00f3torinn dregur nokkurn straum og \u00e9g kom einhvernt\u00edma a\u00f0 v\u00e9linni \u00fear sem rafhla\u00f0an var dau\u00f0. \u00de\u00e1 \u00fearf a\u00f0 opna b\u00e1tinn, skipta um rafhl\u00f6\u00f0u, festa hana aftur svo h\u00fan hringli ekki, og \u00fdmiskonar anna\u00f0 vesen. \u00c1kva\u00f0 \u00fev\u00ed a\u00f0 sj\u00e1 hvort \u00e9g g\u00e6ti ekki fundi\u00f0 hle\u00f0slurafhl\u00f6\u00f0u til a\u00f0 keyra \u00feetta \u00e1fram.<\/p>\n

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

\u00cdhlutir valdir<\/p>\n

A\u00f0 \u00feessu reyndu taldi \u00e9g \u00feetta \u00e1g\u00e6tis byrjun, en \u00fe\u00f3tti heldur pl\u00e1ssfrekt. \u00cd raun v\u00e6ri alveg n\u00f3g a\u00f0 vera me\u00f0 sm\u00e6rri \u00f6rt\u00f6lvu \u00fear sem ekki v\u00e6ri \u00fe\u00f6rf \u00e1 hra\u00f0ri \u00farvinnslu, miklu minni, e\u00f0a m\u00f6rgum tengipinnum.<\/p>\n

Eftir mikla leit og samanbur\u00f0 lenti \u00e9g \u00e1 3V \u00fatg\u00e1funni af ItsyBitsy 32u4 fr\u00e1 Adafruit. Eins fann \u00e9g nokku\u00f0 minni m\u00f3torst\u00fdringu: DRV8833 sem \u00e9g vona\u00f0i a\u00f0 g\u00e6ti skila\u00f0 n\u00f3gu miklu afli.<\/p>\n

Vi\u00f0 \u00feetta b\u00e6tti \u00e9g svo rofa til a\u00f0 geta kveikt \u00e1 b\u00e1tnum utanfr\u00e1, hnapp me\u00f0 lj\u00f3si til a\u00f0 sj\u00e1 hvort b\u00e1turinn v\u00e6ri tilb\u00fainn til aksturs, og utan\u00e1liggjandi hle\u00f0sluporti svo h\u00e6gt v\u00e6ri a\u00f0 hla\u00f0a hann me\u00f0 venjulegu 5V micro-USB tengi.<\/p>\n

Frumger\u00f0ina haf\u00f0i \u00e9g gert me\u00f0 vefvi\u00f0m\u00f3tinu en \u00fea\u00f0 sty\u00f0ur ekki Adafruit \u00f6rt\u00f6lvurnar svo \u00e9g \u00feurfti a\u00f0 f\u00e6ra mig yfir \u00ed IDE-inn. Sem var svosum allt \u00ed lagi, en verra var a\u00f0 ItsyBitsy-inn getur ekki \u00e1tt \u00ed serial-samskiptum vi\u00f0 t\u00f6lvuna svo \u00fea\u00f0 er a\u00f0eins erfi\u00f0ara a\u00f0 afl\u00fasa.<\/p>\n

\u00deegar allt var komi\u00f0 saman og \u00e9g b\u00fainn a\u00f0 tengja ...<\/p>\n

... ger\u00f0ist ekkert.<\/p>\n

Allt dautt. \u00d6rt\u00f6lvan virtist virka, en ekki m\u00f3torst\u00fdringin. H\u00fan virtist bara alveg dau\u00f0. Eftir miki\u00f0 stre\u00f0, leit \u00e1 netinu og alls kyns \u00e6fingar gafst \u00e9g upp og sendi inn hj\u00e1lparbei\u00f0ni<\/a> inn \u00ed Adafruit forum-in. \u00cd lj\u00f3s kom a\u00f0 \u00e9g haf\u00f0i bara ekki lesi\u00f0 lei\u00f0beiningarnar n\u00f3gu vel ...<\/p>\n

andvarp<\/strong><\/p>\n

\u00d3, j\u00e6ja. Betra en a\u00f0 \u00fea\u00f0 hafi veri\u00f0 bila\u00f0. \u00dea\u00f0 sem \u00e9g haf\u00f0i skauta\u00f0 framhj\u00e1 var a\u00f0 m\u00f3torst\u00fdringin er \u00f3virk nema spenna s\u00e9 sett \u00e1 SLP pinnann. Me\u00f0 \u00feeirri lagf\u00e6ringu gekk allt upp.<\/p>\n

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

Loka\u00fatg\u00e1fan<\/p>\n

N\u00fa \u00feurfti bara a\u00f0 koma \u00f6llu fyrir \u00e1 nokku\u00f0 r\u00f3b\u00fast h\u00e1tt. \u00cd pr\u00f3funum haf\u00f0i \u00e9g tengt hlutina saman \u00ed gegnum brau\u00f0bretti en fyrir loka\u00fatg\u00e1funa \u00feurfti eitthva\u00f0 sem mundi \u00feola sm\u00e1 ofbeldi. \u00c9g fann prentpl\u00f6tur \u00ed st\u00e6r\u00f0 svo \u00e9g r\u00e9tt gat komi\u00f0 \u00f6llu fyrir. \u00dea\u00f0 var sm\u00e1 vesen a\u00f0 koma \u00f6llu fyrir og velja bestu lei\u00f0ina, en \u00e9g held a\u00f0 lendingin hafi veri\u00f0 nokku\u00f0 g\u00f3\u00f0.<\/p>\n

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

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

\u00d6rt\u00f6lvan, m\u00f3torst\u00fdringin, og tv\u00f6 stillanlegu vi\u00f0n\u00e1manna eru n\u00fa l\u00f3\u00f0u\u00f0 vi\u00f0 pl\u00f6tuna. Rafhla\u00f0an, rofinn, stillivi\u00f0n\u00e1mi\u00f0, og m\u00f3torinn eru hins vegar tengd vi\u00f0 prentpl\u00f6tuna me\u00f0 jumper-tengjum svo \u00fea\u00f0 er au\u00f0velt a\u00f0 kippa \u00feeim \u00far sambandi og tengja \u00e1 n\u00fd, ef \u00fea\u00f0 \u00fearf a\u00f0 skipta einhverju \u00fat.<\/p>\n

N\u00fa er bara a\u00f0 sj\u00e1 hvernig \u00feessu ver\u00f0ur komi\u00f0 fyrir \u00ed b\u00e1tnum.<\/p>\n

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

Fyrir nokkru haf\u00f0i Sj\u00f3minjasafni\u00f0 samband vi\u00f0 okkur \u00ed V\u00edsindasmi\u00f0junni um a\u00f0 a\u00f0sto\u00f0a \u00feau vi\u00f0 a\u00f0 b\u00faa til n\u00e1tt\u00farufr\u00e6\u00f0itengt fr\u00e6\u00f0sluefni fyrir sk\u00f3lah\u00f3pa sem \u00feau taka \u00e1…<\/p>\n","protected":false},"author":1485,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[150634,150637,759,150635,150636,150638],"tags":[],"class_list":["post-141","post","type-post","status-publish","format-standard","hentry","category-arduino","category-forritun","category-oflokkad","category-samstarfsverkefni","category-sjominjasafnid","category-taekjaforritun"],"_links":{"self":[{"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/posts\/141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/users\/1485"}],"replies":[{"embeddable":true,"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/comments?post=141"}],"version-history":[{"count":4,"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/posts\/141\/revisions"}],"predecessor-version":[{"id":153,"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/posts\/141\/revisions\/153"}],"wp:attachment":[{"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/media?parent=141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/categories?post=141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/uni.hi.is\/martin\/wp-json\/wp\/v2\/tags?post=141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}