非常に重要かつ現実的な問題に対処するため，LIRCを再びインストールしてみます．<\/p>\n\n\n\n
直面している問題は，睡眠時にエアコンをかけっぱなしにすると，明け方冷えてくることです．たぶん日が出ると室外機に日が当たるので，温度制御に誤差が出てくるのではないかと推測しています．<\/p>\n\n\n\n
まず，恐ろしく陳腐化している<\/strong>筆者自身が6年前にまとめたRaspberry Pi (LIRC)<\/a>を参考に始めます．<\/p>\n\n\n\n 受信器1<\/a><\/sup>秋月電子通商で購入した， “OSRB38C9AA” ．<\/span>を電源を3.3V, GNDはGND，信号出力はGPIO 18にそれぞれ接続しています．GPIOのピンレイアウトは公式サイトを参照するのが無難でしょう．<\/p>\n\n\n\n 次に，ソフトウエアの準備です．Raspberry Pi OSの場合は，<\/p>\n\n\n\n でインストールできます．また，\/boot\/firmware\/config.txtの適当な場所に，<\/p>\n\n\n\n などと記述しておきます2<\/a><\/sup>参考にしたページ: Raspberry Piと電子工作<\/a>． 本稿と参考にしたページとではピン接続が異なります．<\/p><\/span>．そして，rebootしますが，<\/p>\n\n\n\n しても何にもありません．やはりこの6年の間にずいぶん色々変わってしまったようです．新しいドキュメントを探すことにします．<\/p>\n","protected":false},"excerpt":{"rendered":" \u975e\u5e38\u306b\u91cd\u8981\u304b\u3064\u73fe\u5b9f\u7684\u306a\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\uff0cLIRC\u3092\u518d\u3073\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u307f\u307e\u3059\uff0e \u76f4\u9762\u3057\u3066\u3044\u308b\u554f\u984c\u306f\uff0c\u7761\u7720\u6642\u306b\u30a8\u30a2\u30b3\u30f3\u3092\u304b\u3051\u3063\u3071\u306a\u3057\u306b\u3059\u308b\u3068\uff0c\u660e\u3051\u65b9\u51b7\u3048\u3066\u304f\u308b\u3053\u3068\u3067\u3059\uff0e\u305f\u3076\u3093\u65e5\u304c\u51fa\u308b\u3068\u5ba4\u5916\u6a5f\u306b\u65e5\u304c\u5f53\u305f\u308b\u306e\u3067\uff0c\u6e29\u5ea6\u5236\u5fa1\u306b\u8aa4\u5dee\u304c\u51fa\u3066\u304f\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u63a8\u6e2c\u3057\u3066\u3044\u307e\u3059\uff0e \u307e\u305a\uff0c\u6050\u308d\u3057\u304f\u9673\u8150\u5316\u3057\u3066\u3044\u308b\u7b46\u8005\u81ea\u8eab\u304c6\u5e74\u524d\u306b\u307e\u3068\u3081\u305fRaspberry Pi (LIRC)\u3092\u53c2\u8003\u306b\u59cb\u3081\u307e\u3059\uff0e \u53d7\u4fe1\u5668\u3092\u96fb\u6e90\u30923.3V, GND\u306fGND\uff0c\u4fe1\u53f7\u51fa\u529b\u306fGPIO 18\u306b\u305d\u308c\u305e\u308c\u63a5\u7d9a\u3057\u3066\u3044\u307e\u3059\uff0eGPIO\u306e\u30d4\u30f3\u30ec\u30a4\u30a2\u30a6\u30c8\u306f\u516c\u5f0f\u30b5\u30a4\u30c8\u3092\u53c2\u7167\u3059\u308b\u306e\u304c\u7121\u96e3\u3067\u3057\u3087\u3046\uff0e \u6b21\u306b\uff0c\u30bd\u30d5\u30c8\u30a6\u30a8\u30a2\u306e\u6e96\u5099\u3067\u3059\uff0eRaspberry Pi OS\u306e\u5834\u5408\u306f\uff0c \u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u304d\u307e\u3059\uff0e\u307e\u305f\uff0c\/boot\/firmware\/config.txt\u306e\u9069\u5f53\u306a\u5834\u6240\u306b\uff0c \u306a\u3069\u3068\u8a18\u8ff0\u3057\u3066\u304a\u304d\u307e\u3059\uff0e\u305d\u3057\u3066\uff0creboot\u3057\u307e\u3059\u304c\uff0c \u3057\u3066\u3082\u4f55\u306b\u3082\u3042\u308a\u307e\u305b\u3093\uff0e\u3084\u306f\u308a\u3053\u306e6\u5e74\u306e\u9593\u306b\u305a\u3044\u3076\u3093\u8272\u3005\u5909\u308f\u3063\u3066\u3057\u307e\u3063\u305f\u3088\u3046\u3067\u3059\uff0e\u65b0\u3057\u3044\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u63a2\u3059\u3053\u3068\u306b\u3057\u307e\u3059\uff0e<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_daextam_enable_autolinks":"1","footnotes":""},"categories":[6,27],"tags":[],"class_list":["post-25470","post","type-post","status-publish","format-standard","hentry","category-debian","category-rasapberry-pi"],"publishpress_future_action":{"enabled":false,"date":"2026-06-01 01:59:31","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts\/25470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=25470"}],"version-history":[{"count":0,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=\/wp\/v2\/posts\/25470\/revisions"}],"wp:attachment":[{"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=25470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/je1sgh.mydns.jp\/je1sghblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
apt install lirc<\/code><\/pre>\n\n\n\n# For LIRC\ndtoverlay=gpio-ir,gpio_pin=18\ndtoverlay=gpio-ir-tx,gpio_pin=17<\/code><\/pre>\n\n\n\n
\n\n\n\nlsmod | grep lirc<\/code><\/pre>\n\n\n\n