I2C\u4f4e\u96fb\u5727\u30ad\u30e3\u30e9\u30af\u30bf\u6db2\u6676\u30e2\u30b8\u30e5\u30fc\u30eb(16×2\u884c) (Strawberry Linux)<\/a> <\/p>\n\u3053\u308c\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3092\u307f\u308b\u3068\u308f\u304b\u308b\u304c\u3001\u30ea\u30bb\u30c3\u30c8\u30fbSCL\u30fbSDA\u30fbGND\u30fbVDD\u3092\u3064\u306a\u3052\u3070\u3044\u3044\u3002 <\/p>\n
\u672c\u6765\u306f\u96fb\u6e90\u306f3.3V\u306a\u306e\u3060\u304c\u30015V\u3067\u3082\u52d5\u304f\u305d\u3046\u306a\u306e\u3067\u3001Arduino\u306e\u96fb\u5727\u306b\u5408\u308f\u305b\u3066+5V\u3092\u4f9b\u7d66\u3057\u305f\u3002 <\/p>\n
\u3042\u3068\u5fd8\u308c\u3066\u306f\u3044\u3051\u306a\u3044\u306e\u304cI2C\u30d0\u30b9\u3092\u30d7\u30eb\u30a2\u30c3\u30d7\u3059\u308b\u3053\u3068\u3067\u3059\u306d\u3002SCL\u30fbSDA\u3092\u305d\u308c\u305e\u308c10k\u03a9\u3067Vcc\u3078\u30d7\u30eb\u30a2\u30c3\u30d7\u3057\u305f\u3002 <\/p>\n
\u52d5\u4f5c\u3055\u305b\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3053\u3053\u306eAVR\u30b5\u30f3\u30d7\u30eb\u3092\u5143\u306bI2C\u306e\u901a\u4fe1\u306e\u5185\u5bb9\u3060\u3051\u53c2\u8003\u306b\u3059\u308c\u3070\u3088\u3044\u3002 <\/p>\n
\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u306f5V\u306b\u306a\u3063\u305f\u5206\u4e0b\u3052\u308b\u5fc5\u8981\u304c\u3042\u3063\u3066\u300120\u3067\u3046\u307e\u304f\u52d5\u3044\u3066\u3044\u308b\u3002 <\/p>\n
\n \u6b21\u306b\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u30ad\u30fc\u306e\u4f5c\u6210\u3060\u304c\u30014\u00d73\u306b\u30b9\u30a4\u30c3\u30c1\u3092\u4e26\u3079\u3066\u3001\u7e26\u306b\u30b9\u30a4\u30c3\u30c1\u306e\u8db3\u306e\u7247\u65b9\u30921\u672c\u306e\u7dda\u306b\u3064\u306a\u3050\u3002<\/p>\n
\u305d\u3057\u3066\u3082\u3046\u7247\u65b9\u306e\u8db3\u306f\u6a2a\u306b1\u672c\u306e\u7dda\u306b\u3064\u306a\u3050\u3002<\/p>\n
\u3042\u3068\u306f\u7e26\u306e\u7dda\u3092Vcc\u306b10k\u03a9\u3067\u30d7\u30eb\u30a2\u30c3\u30d7\u3059\u308c\u3070\u4e00\u5fdc\u5b8c\u6210\u3002<\/p>\n
\u3053\u3053\u3067\u7e26\u306e\u7dda\u306b\u306f1\u3064\u3060\u3051L\u3067\u5f8c\u306fH\u3092\u4e0e\u3048\u3066\u3084\u308c\u3070\u3001\u7e26\u306e\u7dda\u304b\u3089L\u306b\u3057\u305f\u884c\u3067\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u3066\u3044\u308b\u3068\u3053\u308d\u304c\u3042\u308c\u3070L\u304c\u51fa\u3066\u304f\u308b\u3002<\/p>\n
\u3053\u306e7\u672c\u306e\u7dda\u3068Vcc\u3092Arduino\u306e\u3068\u3053\u308d\u307e\u3067\u6301\u3063\u3066\u884c\u3063\u3066\u3084\u308b\u5fc5\u8981\u304c\u3042\u308b\u304c\u3001\u3053\u3053\u3067\u30d5\u30e9\u30c3\u30c8\u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u3063\u305f\u3002<\/p>\n
\u30d5\u30e9\u30c3\u30c8\u30b1\u30fc\u30d6\u30eb\u306e\u7aef\u3092\u30d0\u30e9\u3057\u3066\u3001\u7e26\u6a2a\u306e\u7dda\u3068Vcc\u306b\u3064\u306a\u3050\u3002<\/p>\n
\u305d\u3057\u3066\u53cd\u5bfe\u306e\u7aef\u306b\u306f\u8cb7\u3063\u3066\u304d\u305f10\u30d4\u30f3\u306e\u5727\u63a5\u7aef\u5b50\u3092\u30ac\u30b7\u30c3\u3068\u53d6\u308a\u4ed8\u3051\u3066\u3084\u3063\u305f\u3002\u3053\u308c\u3067\u30d5\u30e9\u30c3\u30c8\u30b1\u30fc\u30d6\u30eb\u3067\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002<\/p>\n
\u3053\u306e\u6642\u70b9\u3067\u30de\u30a4\u30b3\u30f3\u3068\u30b8\u30e3\u30f3\u30d1\u30fc\u30ef\u30a4\u30e4\u30fc\u3067\u63a5\u7d9a\u3057\u3066\u30c6\u30b9\u30c8\u3057\u305f\u3068\u3053\u308d\u3046\u307e\u304f\u52d5\u3044\u305f\u3002<\/p>\n
char initKey(){\n pinMode( 8,OUTPUT); digitalWrite( 8,HIGH);\n pinMode( 9,OUTPUT); digitalWrite( 9,HIGH);\n pinMode(10,OUTPUT); digitalWrite(10,HIGH);\n pinMode(11,OUTPUT); digitalWrite(11,HIGH);\n pinMode(5,INPUT); pinMode(6,INPUT); pinMode(7,INPUT);\n}\nchar readKey(){\n char t;\n digitalWrite( 8,LOW); delay(1);\n t=digitalRead(7)<<2|digitalRead(6)<<1|digitalRead(5)\n digitalWrite( 8,HIGH);\n if(t==0b011) return 1;\n if(t==0b101) return 2;\n if(t==0b110) return 3;\n digitalWrite( 9,LOW); delay(1);\n t=digitalRead(7)<<2|digitalRead(6)<<1|digitalRead(5)\n digitalWrite( 9,HIGH);\n if(t==0b011) return 4;\n if(t==0b101) return 5;\n if(t==0b110) return 6;\n digitalWrite(10,LOW); delay(1);\n t=digitalRead(7)<<2|digitalRead(6)<<1|digitalRead(5)\n digitalWrite(10,HIGH);\n if(t==0b011) return 7;\n if(t==0b101) return 8;\n if(t==0b110) return 9;\n digitalWrite(11,LOW); delay(1);\n t=digitalRead(7)<<2|digitalRead(6)<<1|digitalRead(5)\n digitalWrite(11,HIGH);\n if(t==0b011) return 11;\n if(t==0b101) return 0;\n if(t==0b110) return 12;\n return -1;\n}<\/pre>\n\u96fb\u8a71\u306e\u30d7\u30c3\u30b7\u30e5\u30dc\u30bf\u30f3\u306e\u9806\u756a\u306b\u4e26\u3093\u3067\u3044\u308b\u3053\u3068\u3092\u60f3\u5b9a\u3057\u3066\u3044\u308b\u3002<\/p>\n
\u306a\u306b\u3082\u62bc\u3055\u308c\u3066\u306a\u304b\u3063\u305f\u6642\u306f-1\u30010\uff5e9\u3092\u62bc\u3055\u308c\u305f\u6642\u306f\u305d\u306e\u6570\u5b57\u30010\u306e\u5de6\u53f3\u306e\u30dc\u30bf\u30f3\u306f11\u30fb12\u3092\u8fd4\u3059\u3002<\/p>\n
\n\u305f\u3060\u3001\u3053\u308c\u3067\u306f13\u3057\u304b\u306a\u3044\u30c7\u30b8\u30bf\u30eb\u5165\u51fa\u529b\u30dd\u30fc\u30c8\u30927\u672c\u3082\u4f7f\u3046\u306e\u3067\u30ed\u30b8\u30c3\u30afIC\u3092\u4f7f\u3063\u30664\u672c\u306b\u5727\u7e2e\u3057\u305f\u306e\u3060\u304c\u3001<\/p>\n
\u3053\u306e\u3053\u3068\u306f\u66f8\u304f\u3068\u9577\u304f\u306a\u308b\u306e\u3067\u7701\u7565\u3002<\/p>\n
2\u5165\u529b4\u56de\u8defNAND\u30b2\u30fc\u30c8\u306eIC\u30017400\u30922\u3064\u8cb7\u3063\u3066\u304d\u3066\u7d44\u307f\u5408\u308f\u305b\u3066\u4f5c\u3063\u305f\u3093\u3060\u3051\u3069\u914d\u7dda\u304c\u5927\u5909\u3060\u3063\u305f\u3002<\/p>\n
LCD\u3092\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u30d4\u30f3\u30d8\u30c3\u30c0\u3001\u30d5\u30e9\u30c3\u30c8\u30b1\u30fc\u30d6\u30eb\u3067\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u30ad\u30fc\u3092\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306e\u30dc\u30c3\u30af\u30b9\u30d8\u30c3\u30c0\u3082\u53d6\u308a\u4ed8\u3051\u306a\u306a\u3089\u3093\u304b\u3063\u305f\u306e\u3067\u3002<\/p>\n
\u914d\u7dda\u306b\u4f7f\u3048\u308b\u7dda\u304c\u8d641\u8272\u3057\u304b\u306a\u3044\u304b\u3089\u3048\u3089\u3044\u6df7\u4e71\u3057\u305d\u3046\u306b\u306a\u308b\u3057\u3002<\/p>\n
\u307e\u3060\u81ea\u5206\u304c\u3069\u3093\u306a\u56de\u8def\u3092\u4f5c\u3063\u3066\u308b\u304b\u308f\u304b\u308a\u306a\u304c\u3089\u306f\u3093\u3060\u4ed8\u3051\u3057\u3066\u308b\u304b\u3089\u307e\u3057\u3060\u3051\u3069\u3002<\/p>\n
\n\u3042\u3068LED\u3082\u53d6\u308a\u4ed8\u3051\u305f\u3002LED\u306f1\u3064Arduino\u306e\u30dc\u30fc\u30c9\u4e0a\u306b\u3082\u3042\u308b\u3088\u3046\u3060\u304c\u3001\u4e0a\u306b\u30e6\u30cb\u30d0\u30fc\u30b5\u30eb\u57fa\u677f\u3092\u4e57\u305b\u308b\u3068\u96a0\u308c\u308b\u306e\u3067\u3001\u305d\u306e\u4ee3\u66ff\u306b1\u3064\u3001<\/p>\n
\u3042\u3068PWM\u306e\u30dd\u30fc\u30c8\u306b\u3064\u306a\u3052\u305fLED\u30921\u3064\u7528\u610f\u3057\u305f\u3002LED\u306f\u8d64\u3068\u7dd1\u306a\u306e\u3067300\u03a9\u306e\u62b5\u6297\u3092\u631f\u3093\u3067\u3064\u306a\u3044\u3060\u3002<\/p>\n
\u5b89\u3044LED\u306a\u3093\u3060\u3051\u3069\u3051\u3063\u3053\u3046\u660e\u308b\u3044\u3002PWM\u3067\u5236\u5fa1\u3057\u3066\u3082\u30c7\u30e5\u30fc\u30c6\u30a3\u30fc\u6bd4\u4e0a\u3052\u305f\u3089\u3059\u3050\u306b\u660e\u308b\u304f\u306a\u3063\u3061\u3083\u3046\u3002<\/p>\n
\u305d\u308c\u3068\u30d6\u30b6\u30fc\u3082\u53d6\u308a\u4ed8\u3051\u3068\u3044\u305f\u3002\u30d6\u30b6\u30fc\u306f\u9069\u5f53\u306a\u30c7\u30b8\u30bf\u30eb\u5165\u51fa\u529b\u30dd\u30fc\u30c8\u306b\u3064\u306a\u3052\u3070\u3044\u3044\u3002<\/p>\n
\u3053\u308c\u3067\u5b8c\u6210\u3002<\/p>\n
\n\u30ad\u30e3\u30e9\u30af\u30bfLCD\u30fb\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u30ad\u30fc\u30fbLED2\u3064\u30fb\u30d6\u30b6\u30fc\u3068\u304b\u306a\u308a\u5145\u5b9f\u3057\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u53d6\u308a\u4ed8\u3051\u308b\u3053\u3068\u304c\u51fa\u6765\u305f\u3002<\/p>\n
\u3053\u3053\u307e\u3067\u65e5\u66dc\u65e5\u3068\u4eca\u65e5\u3061\u3087\u3063\u3068\u306e\u4f5c\u696d\u3067\u3067\u304d\u305f\u3002<\/p>\n
\u3053\u308c\u3060\u3051\u3067\u5341\u5206\u3044\u308d\u3093\u306a\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u30ad\u30e3\u30e9\u30af\u30bfLCD\u306f\u3044\u308d\u3044\u308d\u8868\u793a\u3067\u304d\u308b\u3057\u300112\u500b\u3082\u30b9\u30a4\u30c3\u30c1\u304c\u3042\u308c\u3070\u3044\u308d\u3044\u308d\u5165\u529b\u3067\u304d\u308b\u3002<\/p>\n
\u30dd\u30fc\u30c8\u6570\u306e\u5236\u7d04\u306f\u3042\u308b\u3051\u3069\u3001LCD\u3082\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u30ad\u30fc\u3082\u30dd\u30fc\u30c8\u6570\u3092\u7bc0\u7d04\u3057\u305f\u306e\u3067\u307e\u3060\u307e\u3060\u62e1\u5f35\u3067\u304d\u307e\u3059\u306d\u3002<\/p>\n
\u3053\u308c\u3067\u65e9\u901f\u3001\u9006\u30dd\u30fc\u30e9\u30f3\u30c9\u5f0f\u306e\u96fb\u5353\u3092\u4f5c\u3063\u3066\u307f\u3066\u3044\u308b\u3002<\/p>\n
\u305f\u3060\u96fb\u5353\u3092\u4f5c\u308b\u306b\u306f12\u500b\u3067\u306f\u30ad\u30fc\u304c\u8db3\u308a\u306a\u3044\u306a\u3002\u6f14\u7b97\u5b50\u306f\u4f55\u56de\u304b\u62bc\u3057\u3066\u9078\u3076\u306a\u3069\u3059\u308c\u3070\u53ce\u3081\u3089\u308c\u307e\u3059\u3051\u3069\u306d\u3002<\/p>\n
\u307e\u305f\u3086\u3063\u304f\u308a\u904a\u307c\u3046\u304b\u306a\u3068\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Arduino\u306e\u5468\u8fba\u56de\u8def\u306e\u7d44\u307f\u7acb\u3066\u304c\u3067\u304d\u305f\u3002 \u304f\u308f\u3057\u304f\u56de\u8def\u56f3\u306a\u3069\u3082\u8f09\u305b\u3089\u308c\u305f\u3089\u3088\u304b\u3063\u305f\u306e\u3060\u3051\u3069\u3001\u3081\u3093\u3069\u304f\u3055\u3044\u306e\u3067\u305d\u308c\u306f\u8f09\u305b\u306a\u3044\u3053\u3068\u306b\u3057\u305f\u3002 \u307e\u305aLCD\u306e\u63a5\u7d9a\u3067\u3059\u304c\u3001LCD\u306fI2C\u3067\u63a5\u7d9a\u3059\u308b\u3060\u3051\u3060\u304b\u3089\u7c21\u5358\u3067\u3059\u306d\u3002 I2C\u4f4e […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-2403","post","type-post","status-publish","format-standard","hentry","category-science"],"_links":{"self":[{"href":"http:\/\/hdmr.org\/d\/index.php?rest_route=\/wp\/v2\/posts\/2403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/hdmr.org\/d\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/hdmr.org\/d\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/hdmr.org\/d\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/hdmr.org\/d\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2403"}],"version-history":[{"count":0,"href":"http:\/\/hdmr.org\/d\/index.php?rest_route=\/wp\/v2\/posts\/2403\/revisions"}],"wp:attachment":[{"href":"http:\/\/hdmr.org\/d\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/hdmr.org\/d\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2403"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/hdmr.org\/d\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}