{"id":23679,"date":"2017-03-13T22:23:55","date_gmt":"2017-03-13T21:23:55","guid":{"rendered":"http:\/\/www.akehedman.se\/wordpress\/?p=23679"},"modified":"2017-03-13T22:23:55","modified_gmt":"2017-03-13T21:23:55","slug":"moduler-och-kylskapsreparationer","status":"publish","type":"post","link":"https:\/\/www.akehedman.se\/wordpress\/?p=23679","title":{"rendered":"Moduler och kylsk\u00e5psreparationer"},"content":{"rendered":"

Varning! Tekniskt inneh\u00e5ll!<\/strong><\/p>\n

\"\"<\/p>\n

Byggblock till kylsk\u00e5p, ja det \u00e4r meningen att saker skall monteras och k\u00f6ras ig\u00e5ng idag, eller \u00e5tminstone testas, men annat f\u00e5r prioriteras, man m\u00e5ste leva ocks\u00e5, s\u00e5dant g\u00e5r alltid f\u00f6rst, s\u00e5klart, hur skulle det annars se ut?<\/p>\n

Jod\u00e5, byggblock som \u00e4r overkill s\u00e5klart. Grodans Beijing module<\/a> och en\u00a0 Kelvin NTC modul<\/a>. Den f\u00f6rsta f\u00f6r I\/O och den andra f\u00f6r temperaturm\u00e4tningen. I det h\u00e4r fallet \u00e4r \u00e4r I\/O att ha koll p\u00e5 d\u00f6rrar och switcha de tv\u00e5 halvledarrel\u00e4erna (de bl\u00e5 burkarna). Ett rel\u00e4 f\u00f6r belysning och ett f\u00f6r kompressor. Rel\u00e4erna i sig \u00e4r lite overkill dom med men \u00e4r saker jag har haft i mina l\u00e5dor och d\u00e4rf\u00f6r gratis. De har en skojig historia faktiskt eftersom de h\u00e4rstammar fr\u00e5n en stordator som anv\u00e4ndes f\u00f6r Sveriges st\u00f6rsta skokedja fram till 70-talet. N\u00e5gra \u00e5r satt de i en f\u00f6reg\u00e5ngare till Hulkens styrning dessutom.<\/p>\n

Modulerna anv\u00e4nder sig av CAN. Man kopplar ihop dem (och konfigurerar dem) och vips s\u00e5 har man ett autonomt system. N\u00e5gon server beh\u00f6vs inte men vill man ha en, och det vill jag, s\u00e5 kopplar man bara in dem till ett st\u00f6rre system och kan f\u00e5 data och kan \u00f6vervaka. I mitt fall kopplar man sig till frysen eftersom den redan har en liknande installation f\u00f6r sin styrning. D\u00e4r anv\u00e4nds en Paris rel\u00e4 modul<\/a> ist\u00e4llet f\u00f6r Bejing som har lite b\u00e4ttre egenskaper f\u00f6r att styra rel\u00e4er. Men de egenskaperna beh\u00f6vs egentligen inte f\u00f6r de h\u00e4r halvledarrel\u00e4erna.<\/p>\n

H\u00e4r n\u00e5gonstans irriterar<\/strong> det s\u00e5klart att jag inte har m\u00f6jlighet att s\u00e4lja de h\u00e4r modulerna. De ligger d\u00e4r bara klara och produktifierade och ruttnar bort. Ja, n\u00e5got skall g\u00f6ra det ocks\u00e5. Inga sura miner. Bara ruttnande h\u00e5rdvara och arbete.<\/p>\n

Det jag kommer att g\u00f6r nu \u00e4r att konfigurera Kelvin NTC modulen att s\u00e4nda Turn-ON event<\/a> n\u00e4r temperaturen \u00e4r h\u00f6gre \u00e4n ett inst\u00e4llt v\u00e4rde och Turn-OFF event<\/a> n\u00e4r den \u00e4r under ett annat v\u00e4rde. Lite hysteris d\u00e4r emellan. Sen l\u00e4gger jag in i beslutsmatrisen (decision matrix) p\u00e5 Bejing modulen<\/a> att den skall reagera p\u00e5 Turn-ON eventet och s\u00e4tta en utg\u00e5ng h\u00f6g som g\u00e5r till rel\u00e4et och en annan utg\u00e5ng som g\u00e5r till en LED f\u00f6r att visa att kompressorn snurrar. Sen samma sak fast tv\u00e4rt om f\u00f6r Turn-OFF eventet.<\/p>\n

Sen skickar s\u00e5klart temperatur modulen ut den aktuella temperaturen med j\u00e4mna mellanrum. Tv\u00e5 temperaturer m\u00e4ts, I kylen och i svalen. Vill jag s\u00e5 kan jag allts\u00e5 visa den i diagramform (som i frysen<\/a>) eller larma med ett SMS eller larmsignal eller tusen blinkande lampor om temperaturen blir f\u00f6r h\u00f6g.<\/p>\n

Fast som sagt, overkill b\u00e5de h\u00e4r p\u00e5 bloggen och i verkligheten.<\/p>\n","protected":false},"excerpt":{"rendered":"

Varning! Tekniskt inneh\u00e5ll! Byggblock till kylsk\u00e5p, ja det \u00e4r meningen att saker skall monteras och k\u00f6ras ig\u00e5ng idag, eller \u00e5tminstone testas, men annat f\u00e5r prioriteras, man m\u00e5ste leva ocks\u00e5, s\u00e5dant g\u00e5r alltid f\u00f6rst, s\u00e5klart, hur skulle det annars se ut? Jod\u00e5, byggblock som \u00e4r overkill s\u00e5klart. Grodans Beijing module och en\u00a0 Kelvin NTC modul. Den […]<\/p>\n","protected":false},"author":24,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","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":[24],"tags":[],"class_list":["post-23679","post","type-post","status-publish","format-standard","hentry","category-betraktelser"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":50207,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=50207","url_meta":{"origin":23679,"position":0},"title":"VSCP – Ett kvarts sekel","author":"\u00c5ke Hedman","date":"2025-08-28","format":false,"excerpt":"I b\u00f6rjan av det h\u00e4r seklet pendlade jag mellan Los och Alfta varje dag. Det d\u00e4r kommer till mig n\u00e4r vi \u00e5ker hem fr\u00e5n Bolln\u00e4s ig\u00e5r. Nitton mil \u00e5kte jag varje dag. Nio mil p\u00e5 morgonen och nio mil p\u00e5 kv\u00e4llen. Ig\u00e5r k\u00e4nde jag mig tr\u00f6tt n\u00e4r jag kom hem.\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/08\/Screenshot-From-2025-08-28-07-46-12.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/08\/Screenshot-From-2025-08-28-07-46-12.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/08\/Screenshot-From-2025-08-28-07-46-12.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/08\/Screenshot-From-2025-08-28-07-46-12.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":23905,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=23905","url_meta":{"origin":23679,"position":1},"title":"Moduler","author":"\u00c5ke Hedman","date":"2017-03-29","format":false,"excerpt":"Sju grader kallt h\u00e4r p\u00e5 morgonen, det \u00e4r helt tomt vid f\u00e5gelbordet, det \u00e4r f\u00f6rst n\u00e4r solen b\u00f6rjar v\u00e4rma som f\u00e5glarna kommer fram och kampen om att f\u00e5 sig ett solrosfr\u00f6 har startat. De har \u00e4tit en halv hink med solrosfr\u00f6n p\u00e5 tre dagar nu. Dyrf\u00e5glar \u00e4r vad de \u00e4r\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2017\/03\/Screenshot-from-2017-03-29-083128-1024x333.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2017\/03\/Screenshot-from-2017-03-29-083128-1024x333.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2017\/03\/Screenshot-from-2017-03-29-083128-1024x333.png?resize=525%2C300 1.5x"},"classes":[]},{"id":26979,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=26979","url_meta":{"origin":23679,"position":2},"title":"Livsl\u00f6gner och en s\u00e5pad spark","author":"\u00c5ke Hedman","date":"2018-02-05","format":false,"excerpt":"Jod\u00e5 h\u00e4r \u00e4r det gott. Resten av Los \u00e4r f\u00f6rkylda, K ocks\u00e5, sjukskriven, det \u00e4r inte ofta. Influensan h\u00e4rjar. \u00c4n s\u00e5 l\u00e4nge har jag klarat mig s\u00e5 pass att jag i alla fall \u00e4r p\u00e5 benen. Har en l\u00e5gintensiv f\u00f6rkylning tydligen, men en som bara p\u00e5g\u00e5r och p\u00e5g\u00e5r. 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Klar i slutet p\u00e5 veckan om allt g\u00e5r v\u00e4l. Den sj\u00e4tte modulen i en serie om tolv. Ja en enkel I\/O modul men \u00e4nd\u00e5. \u00c4ven det enkla beh\u00f6vs f\u00f6r att f\u00e5 det sv\u00e5ra att fungera. Men grejen \u00e4r\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"beijing11","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2015\/06\/beijing11-1024x779.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2015\/06\/beijing11-1024x779.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2015\/06\/beijing11-1024x779.png?resize=525%2C300 1.5x"},"classes":[]},{"id":24019,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=24019","url_meta":{"origin":23679,"position":4},"title":"L\u00e5tsasjobbet","author":"\u00c5ke Hedman","date":"2017-04-05","format":false,"excerpt":"Aprildagar. V\u00e5rdagar. H\u00e4rliga dagar. 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