{"id":33387,"date":"2019-10-30T21:40:19","date_gmt":"2019-10-30T20:40:19","guid":{"rendered":"https:\/\/www.akehedman.se\/wordpress\/?p=33387"},"modified":"2019-10-30T21:40:55","modified_gmt":"2019-10-30T20:40:55","slug":"larm","status":"publish","type":"post","link":"https:\/\/www.akehedman.se\/wordpress\/?p=33387","title":{"rendered":"Larm"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

Jag har ett larm som tjuter h\u00e4r st\u00f6rre delen av dan. Katter och m\u00e4nniskor r\u00e4ddar sig undan fr\u00e5n trapphuset n\u00e4r det drar ig\u00e5ng. Hundratjugo decibel ger det ifr\u00e5n sig en bra dag. Ja, jo, det ing\u00e5r i planen. Jag vill ha ett larm som l\u00e5ter ocks\u00e5 som till\u00e4gg till befintligt SMS larm. Mest med tanke p\u00e5 Hulk-farligheter, eller kokande varmvattenberedare, \u00f6versv\u00e4mning, eller brand. Eller annat. Tjuvar. Vad man nu f\u00f6rv\u00e4ntar sig att kunna hitta h\u00e4r. Men nu d\u00e5 s\u00e5. Jobbigare. F\u00f6rst plockar man lite DNA av dem. Sug, sug. Sug p\u00e5 den \/tjuven). Sen larmar man. Sen filmar hela bes\u00f6ket. Det vore v\u00e4l fan om man inte kunde s\u00e4tta dit dom sen. Funderat p\u00e5 h\u00f6gsp\u00e4nning ocks\u00e5 iof men vafan, n\u00e5gon m\u00e5tta f\u00e5r det \u00e4nd\u00e5 allt vara.<\/p>\n\n\n\n

Fast \u00e4ven om larmandet g\u00e5r riktigt bra s\u00e5 g\u00e5r avst\u00e4ngningen av larmet sis\u00e5d\u00e4r. Det \u00e4r f\u00f6rbannat bra om man st\u00e4nga av det n\u00e4r man t.ex. skall sova. Ja det l\u00e5ter allts\u00e5 f\u00f6r j\u00e4vligt. Fr\u00e5ga v\u00e5ra katter.<\/p>\n\n\n\n

S\u00e5 jag letar. Eftersom jag inte har en b\u00e4rbar f\u00e5r man springa s\u00e5klart. M\u00e5nga v\u00e4ndor blir det. Nyttigt. Eller…. Ser att det blir varningar p\u00e5 CAN bussen. Frankfurt RS-232<\/a> enheten beter sig rent av riktigt m\u00e4rkligt. Beijing enheten<\/a> och Paris enheten<\/a> , ja till och med Kelvin 1-wire enheten<\/a> tar dock det hela med ro, verkar det som. Jo det g\u00f6r dom nog. <\/p>\n\n\n\n

Jag missade att s\u00e4tta en avkopplingskondensator p\u00e5 processorn p\u00e5 Frankfurt RS-232 n\u00e4r jag gjorde kretskorten, men har fixat det med en patch. Kan det m\u00e5nne vara den. Testar lite olika l\u00f6sningar. Nope. Verkar fungera. Kollar koden. S\u00e4nker brown out niv\u00e5n en volt. Ser att watchdogen inte \u00e4r p\u00e5slagen i den kod jag har laddat. \u00c5tg\u00e4rdar. Ingen skillnad. Hmmmmm…<\/p>\n\n\n\n

Dagen g\u00e5r. Klockan tickar. Jag hummar, hummar och hummar… Ett sp\u00e4nningsfall \u00e4r det ju. Det b\u00e5de h\u00f6rs och syns. Allt \u00e4r st\u00f6mf\u00f6rs\u00f6rjt fr\u00e5n mitt l\u00e5tsasserverrum s\u00e5 att det g\u00e5r att UPS’a. Kan det vara kabel dimensioner? L\u00e4ngd? Hummar mer. Och mer. K\u00f6r ju andra grejer med samma str\u00f6mstyrkor och kabell\u00e4ngder och de fungerar. <\/p>\n\n\n\n

Men b\u00e4st att byta n\u00e4taggregatet. F\u00f6r s\u00e4kerhets skull. MEN VAFAN!!! Det som sitter d\u00e4r \u00e4r ju bara p\u00e5 en halv ampere,,,, Fan, fan, fan…<\/a><\/p>\n\n\n\n

L\u00d6ST! <\/strong><\/p>\n\n\n\n

Jod\u00e5, att skjuta in tre ampere ist\u00e4llet f\u00f6r en halv till n\u00e5got som beh\u00f6ver tre f\u00f6rb\u00e4ttrar saker. Jag lovar.<\/p>\n\n\n\n

S\u00e5 nu fungerar det. Trotts axel. Trotts onda ben. Trotts d\u00e5lig syn. Trotts att jag inte kollade det uppenbara f\u00f6rst. Japp, en kamp har det varit. En millimeter i taget. Men nu d\u00e5 s\u00e5.<\/p>\n\n\n\n

Det finns dock annat att g\u00f6ra. <\/p>\n","protected":false},"excerpt":{"rendered":"

Jag har ett larm som tjuter h\u00e4r st\u00f6rre delen av dan. Katter och m\u00e4nniskor r\u00e4ddar sig undan fr\u00e5n trapphuset n\u00e4r det drar ig\u00e5ng. Hundratjugo decibel ger det ifr\u00e5n sig en bra dag. Ja, jo, det ing\u00e5r i planen. Jag vill ha ett larm som l\u00e5ter ocks\u00e5 som till\u00e4gg till befintligt SMS larm. Mest med tanke […]<\/p>\n","protected":false},"author":24,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","_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},"jetpack_post_was_ever_published":false},"categories":[24],"tags":[],"class_list":["post-33387","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":21360,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=21360","url_meta":{"origin":33387,"position":0},"title":"VSCP-gropen","author":"\u00c5ke Hedman","date":"2016-08-31","format":false,"excerpt":"Jag gr\u00e4ver och gr\u00e4ver och gr\u00e4ver. P\u00e5 min grop allts\u00e5. Den \u00e4r r\u00e4tt stor nu. VSCP-gropen. Men rasar s\u00e5klart p\u00e5 vissa st\u00e4llen ocks\u00e5 s\u00e5 att man f\u00e5r gr\u00e4va samma om delar igen. Var man n\u00e5gra stycken s\u00e5 skulle det g\u00e5 att gr\u00e4va den h\u00e4r gropen mycket snabbare. Var man t.ex.\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"3628248_2048_1152","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2016\/08\/3628248_2048_1152.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2016\/08\/3628248_2048_1152.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2016\/08\/3628248_2048_1152.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":27455,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=27455","url_meta":{"origin":33387,"position":1},"title":"Vem vet?","author":"\u00c5ke Hedman","date":"2018-03-07","format":false,"excerpt":"N\u00e4r vi flyttade hit veckopendlade jag till Stockholm. En nackdel med veckopendlandet \u00e4r att det \u00e4r jobbigt att sticka iv\u00e4g p\u00e5 s\u00f6ndagskv\u00e4llen eller m\u00e5ndagsmorgonen. Men det d\u00e4r jobbiga v\u00e4gs l\u00e4tt upp av att komma hem p\u00e5 fredagskv\u00e4llen. F\u00f6rst de H\u00e4lsingska bergen. Man s\u00e5g dem d\u00e5. Kunde inte se sig m\u00e4tt\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\/2018\/03\/IMG_20180305_124537777-576x1024.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2018\/03\/IMG_20180305_124537777-576x1024.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2018\/03\/IMG_20180305_124537777-576x1024.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":35945,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=35945","url_meta":{"origin":33387,"position":2},"title":"Tar mig igenom","author":"\u00c5ke Hedman","date":"2020-08-27","format":false,"excerpt":"Finns v\u00e4l inget att bli lycklig \u00f6ver, men jag tar mig igenom det d\u00e4r projektmakeriet och n\u00e5r fram till dokumentation \"klar\". Nu skall den bara laddas upp ocks\u00e5 och sen skall man v\u00e4l v\u00e5ga sig p\u00e5 en release. Borde hinna f\u00e5 till det ocks\u00e5 under kv\u00e4llen. F\u00f6r framtida segrar. Sen\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\/2020\/08\/IMG_20200827_135702-scaled.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/08\/IMG_20200827_135702-scaled.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/08\/IMG_20200827_135702-scaled.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/08\/IMG_20200827_135702-scaled.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/08\/IMG_20200827_135702-scaled.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/08\/IMG_20200827_135702-scaled.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":27136,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=27136","url_meta":{"origin":33387,"position":3},"title":"Dagar av skam","author":"\u00c5ke Hedman","date":"2018-02-13","format":false,"excerpt":"\u00a0 Det finns dagar d\u00e5 det inte h\u00e4nder n\u00e5got av v\u00e4rde. \u00c4nd\u00e5 h\u00e4nder det saker av v\u00e4rde s\u00e5klart. Det ramlar in en massa besked. Bra och d\u00e5liga. Bara bra f\u00f6r mig. D\u00e5liga f\u00f6r andra. Sj\u00e4lv flyter jag som semmelgr\u00e4dde ovanf\u00f6r alla de d\u00e4r beskeden allts\u00e5. Alla m\u00f6jliga och om\u00f6jliga fyller\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\/2018\/02\/gammel_ake-964x1024.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2018\/02\/gammel_ake-964x1024.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2018\/02\/gammel_ake-964x1024.png?resize=525%2C300 1.5x"},"classes":[]},{"id":36113,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=36113","url_meta":{"origin":33387,"position":4},"title":"D\u00e5s\u00e5","author":"\u00c5ke Hedman","date":"2020-09-11","format":false,"excerpt":"H\u00e4lsingska bl\u00e5nande berg l\u00e5ngt bort i fj\u00e4rran. Men h\u00e4r havet. Ursprunget. Dit man sugs. F\u00e5r iv\u00e4g en release. H\u00e5ller egentligen p\u00e5 med annat. T\u00e4nkte v\u00e4l att det h\u00e4r skulle g\u00e5 p\u00e5 en timme eller tv\u00e5. Men s\u00e5 hittar man det ena. Och s\u00e5 hittar man det andra. Sen kr\u00e5nglar det\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\/2020\/09\/IMG_20200909_140035-scaled.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/09\/IMG_20200909_140035-scaled.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/09\/IMG_20200909_140035-scaled.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/09\/IMG_20200909_140035-scaled.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/09\/IMG_20200909_140035-scaled.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2020\/09\/IMG_20200909_140035-scaled.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":18496,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=18496","url_meta":{"origin":33387,"position":5},"title":"“Lingonberg” och “Lill-Helvetet”","author":"\u00c5ke Hedman","date":"2015-08-30","format":false,"excerpt":"Idag bes\u00f6ker vi \"Lingonberg\" och \"Lill-Helvetet\". Tv\u00e5 av v\u00e5ra b\u00e4rplockarst\u00e4llen. Namnet \"Lingonberg\" har vi hittat p\u00e5 sj\u00e4lva s\u00e5klart. Namnet Lill-Helvetet hittade s\u00e4kert en skogsarbetare p\u00e5 n\u00e5gon g\u00e5ng f\u00f6r l\u00e4nge sedan n\u00e4r han l\u00e5g frysande och kall i sin koja. 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