{"id":50,"date":"2025-08-15T20:07:27","date_gmt":"2025-08-15T12:07:27","guid":{"rendered":"https:\/\/blog.zeng807.xyz\/?p=50"},"modified":"2025-09-07T16:37:46","modified_gmt":"2025-09-07T08:37:46","slug":"3-%e6%8a%98%e8%85%be%ef%bc%9a%e4%bd%bf%e7%94%a8%e6%a0%91%e8%8e%93%e6%b4%be%e6%8e%a7%e5%88%b6cec","status":"publish","type":"post","link":"https:\/\/blog.zeng807.xyz\/?p=50","title":{"rendered":"3 \u6298\u817e\uff1a\u4f7f\u7528\u6811\u8393\u6d3e\u63a7\u5236\u5bb6\u5ead\u5f71\u9662"},"content":{"rendered":"\n<p>\u5f00\u5934\u5148\u8bf4\u660e\u4e00\u4e0b\uff0c\u8fd9\u662f\u4e00\u7bc7\u8fdb\u9636\u5185\u5bb9\uff0c\u5982\u679c\u4f60\u6ca1\u6709\u5c06\u5bb6\u5ead\u5f71\u9662\u63a5\u5165HomeAssistant\u63a7\u5236\u7684\u9700\u6c42\uff0c\u6216\u8005\u5bf9\u81ea\u5df1\u63a7\u5236CEC\u6ca1\u6709\u5174\u8da3\uff0c\u90a3\u4e48\u53ef\u4ee5\u8df3\u8fc7\u8fd9\u7bc7\u3002<\/p>\n\n\n\n<p>\u81ea\u4ece\u6211\u9009\u62e9\u4e86\u5148\u950bVSX-835\u4e4b\u540e\uff0c\u6211\u5c31\u6709\u4e2a\u60f3\u6cd5\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u578b\u53f7\u5e76\u6ca1\u6709\u7f51\u7edc\u63a7\u5236\u4e4b\u7c7b\u7684\u529f\u80fd\uff0c\u800c\u6211\u53c8\u6709\u7ec4\u667a\u80fd\u5bb6\u5c45\u7684\u8ba1\u5212\uff0c\u521a\u597d\u6211\u6709\u559c\u6b22\u6298\u817e\uff0c\u5c31\u8bde\u751f\u4e86\u8fd9\u4e2a\u8ba1\u5212\uff0c\u4f7f\u7528\u6811\u8393\u6d3e\u63a7\u5236\u6574\u4e2a\u5bb6\u5ead\u5f71\u9662\u3002<\/p>\n\n\n\n<p>\u9996\u5148\uff0c\u6210\u672c\u63a7\u5236\u4e0b\uff0c\u9996\u9009\u6811\u8393\u6d3eZero 2W\uff0c\u6709\u8fd9\u4e48\u591aGPIO\uff0c\u53c8\u6709HDMI\u63a5\u53e3\uff0c\u53c8\u5c0f\u5de7\u4fbf\u5b9c\uff0c\u679c\u65ad\u9009\u62e9\u3002\u7136\u540e\u662f\u7cfb\u7edf\u9009\u62e9\uff0c\u6211\u6ca1\u6709\u9009\u5b98\u65b9\u7cfb\u7edf\uff0c\u9009\u4e86\u8f7b\u91cf\u7ea7\u7684DietPi\uff0c\u53cd\u6b63\u90fd\u662f\u8981\u81ea\u5df1\u5f00\u53d1\uff0c\u8d8a\u8f7b\u91cf\u8d8a\u597d\uff0c\u8fd8\u80fd\u51cf\u5c0f\u53d1\u70ed\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\uff01\u4e70\u56de\u6765\u8c03\u8bd5\u4e86\u4e00\u4e0b\uff0c\u6211\u5c31\u53d1\u73b0\u4e86\u4e00\u4e2a\u5927\u5751\uff0c\u535a\u901a\u7684HDMI\u63a7\u5236\u5668\u91cc\u9762\u7684CEC\u90e8\u5206\u662f\u4e0d\u80fd\u5b8c\u6574\u8bbf\u95ee\u7684\uff0c\u66b4\u9732\u7ed9\u7cfb\u7edf\u7684\u53ea\u6709\u8ddf\u6811\u8393\u6d3e\u7684HDMI\u63a5\u53e3\u6709\u5173\u7684CEC\u4fe1\u53f7\uff0c\u8fd9\u5c31\u5bfc\u81f4\u65e0\u6cd5\u76d1\u542c\u6574\u6761CEC\u94fe\u8def\u4e0a\u9762\u7684\u884c\u4e3a\uff0c\u6240\u4ee5\u5c31\u9700\u8981\u63a5\u4e0b\u6765\u7684\u9b54\u6539\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"502\" src=\"https:\/\/blog.zeng807.xyz\/wp-content\/uploads\/2025\/08\/zero2-close-up-1024x502.jpg\" alt=\"\" class=\"wp-image-53\" srcset=\"https:\/\/blog.zeng807.xyz\/wp-content\/uploads\/2025\/08\/zero2-close-up-1024x502.jpg 1024w, https:\/\/blog.zeng807.xyz\/wp-content\/uploads\/2025\/08\/zero2-close-up-300x147.jpg 300w, https:\/\/blog.zeng807.xyz\/wp-content\/uploads\/2025\/08\/zero2-close-up-768x376.jpg 768w, https:\/\/blog.zeng807.xyz\/wp-content\/uploads\/2025\/08\/zero2-close-up-1536x753.jpg 1536w, https:\/\/blog.zeng807.xyz\/wp-content\/uploads\/2025\/08\/zero2-close-up.jpg 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u56fe\u4e2d\u7bad\u5934\u6307\u5411\u7684\u5c31\u662fCEC\u4fe1\u53f7\u7ebf\uff0c\u5728GND\u94fa\u94dc\u7684\u65c1\u8fb9\uff0c\u7528\u5c0f\u5200\u628a\u5b83\u522e\u5f00\uff0c\u98de\u7ebf\u5230\u4efb\u610fGPIO\uff08\u6211\u81ea\u5df1\u662f\u98de\u5230\u4e86GPIO5\uff09\uff0c\u6d82\u70b9\u7eff\u6cb9\uff0c\u505a\u597d\u7edd\u7f18\u9632\u62a4\u3002\u786c\u4ef6\u7684\u9b54\u6539\u5c31\u8fd9\u4e00\u70b9\u3002<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\u5c31\u662f\u5185\u6838\u7684\u9b54\u6539\uff0c\u4e5f\u662f\u6700\u5927\u7684\u4e00\u4e2a\u5751\u3002\u6811\u8393\u6d3e\u7684\u5185\u6838\u91cc\u9762\u9ed8\u8ba4\u662f\u6ca1\u6709cec-gpio\u6a21\u5757\u7684\uff0c\u4e5f\u6ca1\u6709\u66b4\u9732\u6709\u5173cec\u7684\u7b26\u53f7\uff0c\u6240\u4ee5\u5c31\u9700\u8981\u81ea\u5df1\u91cd\u65b0\u7f16\u8bd1\u5185\u6838\u3002\u5148\u770b\u770b\u4f60\u7684\u5185\u6838\u7248\u672c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root@DietPi:~# uname -r\n6.12.34+rpt-rpi-v8<\/code><\/pre>\n\n\n\n<p>\u7136\u540e\u5c31\u53bb<a href=\"https:\/\/github.com\/raspberrypi\/linux\">\u6811\u8393\u6d3e\u5b98\u65b9\u7684\u5185\u6838\u4ed3\u5e93<\/a>\u627e\u4f60\u7684\u5185\u6838\u5bf9\u5e94\u7684tag\uff0c\u6bd4\u5982\u6211\u8fd9\u4e2a\u5bf9\u5e94\u7684\u5c31\u662f<a href=\"https:\/\/github.com\/raspberrypi\/linux\/tree\/stable_20250702\">stable_20250702<\/a>\uff08\u6709\u4e00\u4e2a\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u70b9\u8fdb\u53bb\u4e00\u4e2atag\uff0c\u7ffbcommit\u8bb0\u5f55\uff0c\u627e\u5230\u6700\u8fd1\u7684\u7c7b\u4f3c\u8fd9\u6837\u7684\u8bb0\u5f55 <a href=\"https:\/\/github.com\/raspberrypi\/linux\/commit\/23fdf46589db718d538fa3e65ab0d57362d50b4a\">Linux 6.12.34<\/a> \uff0c\u90a3\u8fd9\u4e2atag\u5bf9\u5e94\u7684linux\u5185\u6838\u7248\u672c\u5c31\u662f\u8fd9\u4e2a\uff09\u3002\u63a5\u7740\u7528\u4e00\u53f0x86\u7684pc\u7f16\u8bd1\u5185\u6838\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u5b89\u88c5\u9700\u8981\u7684\u8f6f\u4ef6\u5305\nsudo apt update\nsudo apt install bc bison flex libssl-dev make libc6-dev libncurses5-dev gcc-arm-linux-gnueabihf gcc-aarch64-linux-gnu git\n\n# \u628a\u5185\u6838\u6e90\u7801clone\u5230\u672c\u5730\ngit clone --depth=1 --branch stable_20250702 https:\/\/github.com\/raspberrypi\/linux\n\n# \u5982\u679c\u6709\u9700\u8981\uff0c\u628a\u8fd9\u4e2acommit\u5408\u5e76\u4e00\u4e0b\uff0c\u4fee\u4e00\u4e0bvc4-hdmi\u7684cec\u7684\u5c0f\u95ee\u9898\nhttps:&#47;&#47;github.com\/raspberrypi\/linux\/commit\/daa2acdbc94db93af4d5bc4e756cb66536fc774b\n\n# \u51c6\u5907\u5de5\u4f5c\ncd linux\nKERNEL=kernel8\nmake -j$(nproc) ARCH=arm64 CROSS_COMPILE=\/usr\/bin\/aarch64-linux-gnu- O=OUT\/ bcm2711_defconfig\nmake -j$(nproc) ARCH=arm64 CROSS_COMPILE=\/usr\/bin\/aarch64-linux-gnu- O=out\/ menuconfig\n# \u8fdb\u5165menuconfig\uff0cGeneral setup  ---&gt; Local version - append to kernel release\uff0c\u5220\u9664\u6389\u539f\u672c\u7684-v8\n# Device Drivers  ---&gt; CEC support  ---&gt; HDMI CEC drivers  ---&gt; Generic GPIO-based CEC driver \u8bbe\u7f6e\u4e3aM\uff0c\u4e5f\u5c31\u662f\u6784\u5efa\u4e3a\u5185\u6838\u6a21\u5757\uff0c\u8fd4\u56de\u4e0a\u7ea7\uff0c\u6253\u5f00Enable CEC error injection support\n# \u4fdd\u5b58\u9000\u51fa\n\n# \u7f16\u8bd1\u5185\u6838\nmake -j$(nproc) ARCH=arm64 CROSS_COMPILE=\"\/usr\/bin\/aarch64-linux-gnu-\" O=OUT\/ LOCALVERSION=+rpt-rpi-v8 Image modules dtbs<\/code><\/pre>\n\n\n\n<p>\u7f16\u8bd1\u5b8c\u6210\u4e4b\u540e\uff0c\u5c06\u4ee5\u4e0b\u6587\u4ef6\u590d\u5236\u51fa\u6765\u5907\u7528<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>OUT\\arch\\arm64\\boot\\Image\nOUT\\drivers\\media\\cec\\core\\cec.ko\nOUT\\drivers\\media\\cec\\platform\\cec-gpio\\cec-gpio.ko\nOUT\\drivers\\gpu\\drm\\vc4\\vc4.ko\nOUT\\arch\\arm64\\boot\\dts\\broadcom\\*.dtb\nOUT\\arch\\arm64\\boot\\dts\\overlays\\*.dtb*<\/code><\/pre>\n\n\n\n<p>\u8fdb\u5165\u6811\u8393\u6d3e\u7684shell\uff0c\u521b\u5efa\u4e00\u4e2adtoverlay\uff0c\u547d\u540d\u4e3acec-gpio-overlay.dts<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/dts-v1\/;\n\/plugin\/;\n\n\/ {\n    compatible = \"brcm,bcm2835\", \"brcm,bcm2710\", \"brcm,bcm2711\";\n\n    fragment@0 {\n        target-path = \"\/\";\n        __overlay__ {\n            cec_gpio: cec-gpio@5 {\n                compatible = \"cec-gpio\";\n                cec-gpios = &lt;&amp;gpio 5 6&gt;;\n                status = \"okay\";\n            };\n        };\n    };\n};<\/code><\/pre>\n\n\n\n<p>\u81ea\u884c\u6839\u636e\u81ea\u5df1\u7684\u9b54\u6539\u4fee\u6539GPIO\u7f16\u53f7\uff08\u4e0d\u8981\u52a86\uff0c\u90a3\u4e2a\u662f\u914d\u7f6e\u529f\u80fd\u7684\uff09\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dtc -@ -I dts -O dtb -o cec-gpio-overlay.dtbo cec-gpio-overlay.dts<\/code><\/pre>\n\n\n\n<p>\u7f16\u8bd1\u5b8c\u4e4b\u540e\uff0c\u7528\u521a\u624d\u7f16\u8bd1\u7684\u6240\u6709\u4e1c\u897f\u66ff\u6362\u7cfb\u7edf\u7684\u6587\u4ef6\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Image -&gt; \/boot\/firmware\/kernel8.img\ncec.ko -&gt; \/lib\/modules\/6.12.34+rpt-rpi-v8\/kernel\/drivers\/media\/cec\/core\/cec.ko\ncec-gpio.ko -&gt; \/lib\/modules\/6.12.34+rpt-rpi-v8\/kernel\/drivers\/media\/cec\/platform\/cec-gpio\/cec-gpio.ko\nvc4.ko -&gt; \/lib\/modules\/6.12.34+rpt-rpi-v8\/kernel\/drivers\/gpu\/drm\/vc4\/vc4.ko\nbroadcom\\*.dtb -&gt; \/boot\/firmware\noverlays\\*.dtb* -&gt; \/boot\/firmware\/overlays<\/code><\/pre>\n\n\n\n<p>\u4fee\u6539\/boot\/config.txt\uff0c\u52a0\u4e0a\u4e00\u884cdtoverlay=cec-gpio-overlay<\/p>\n\n\n\n<p>\u7136\u540e\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\/etc\/modprobe.d\/cec-gpio-softdep.conf\uff0c\u7528\u4e8e\u8c03\u6574cec\u8bbe\u5907\u7684\u6ce8\u518c\u987a\u5e8f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Ensure vc4 loads before the GPIO CEC driver so vc4 becomes \/dev\/cec0\nsoftdep cec-gpio pre: vc4\nsoftdep cec_gpio pre: vc4<\/code><\/pre>\n\n\n\n<p>\u7136\u540e\u8fd0\u884c\u8fd9\u6761\u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>depmod -a<\/code><\/pre>\n\n\n\n<p>\u91cd\u542f\u4e4b\u540e\uff0c\u67e5\u770b\/dev\u4e0b\u662f\u5426\u6709\u4e24\u4e2acec\u8bbe\u5907\uff0c\u5982\u679c\u90fd\u6709\uff0c\u90a3\u4e48\u5c31\u6210\u529f\u4e86\u3002\u5982\u679c\u6ca1\u6709vc4-hdmi\uff0c\u53bbdietpi-config -> Display Options -> Display Resolution\uff0c\u8c03\u6574\u4e3avc4-kms-v3d\u3002\u5982\u679c\u6ca1\u6709cec-gpio\uff0c\u786e\u5b9a\u4e00\u4e0b\u4e0a\u9762\u7684\u6b65\u9aa4\u90fd\u6ca1\u95ee\u9898\uff0c\u770b\u770bdmesg\uff0c\u95ee\u95eeGPT\u5427\u3002<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\u5b89\u88c5\u7528\u4e8e\u63a7\u5236CEC\u7684\u8f6f\u4ef6\u5305\uff0c\u5e76\u68c0\u67e5\u4e24\u4e2acec\u8bbe\u5907\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo apt update\nsudo apt install v4l-utils\ncec-ctl -d \/dev\/cec0\ncec-ctl -d \/dev\/cec1<\/code><\/pre>\n\n\n\n<p>\u7136\u540e\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u529f\u80fd<\/p>\n\n\n\n<p>\u521d\u59cb\u5316CEC\u8bbe\u5907\uff0c\u5e76\u663e\u793a\u94fe\u8def\u4e2d\u5176\u4ed6\u8bbe\u5907\u7684\u4fe1\u606f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cec-ctl -d \/dev\/cec0 --playback -o pi_cec_test -S\ncec-ctl -d \/dev\/cec1 --playback -o pi_cec_gpio_test -p 2.2.0.0 -S\n# -d \u6307\u5b9a\u4f7f\u7528\u7684\u8bbe\u5907 -o \u8bbe\u7f6e\u81ea\u5df1\u7684osd\u540d\u79f0 -p \u8bbe\u7f6e\u81ea\u5df1\u7684\u7269\u7406\u5730\u5740\n# cec-ctl\u53ef\u4ee5\u4eceEDID\u83b7\u53d6\u81ea\u5df1\u7684\u7269\u7406\u5730\u5740\uff0c\u6240\u4ee5\u4f7f\u7528vc4-hdmi\u65f6\u53ef\u4ee5\u4e0d\u6307\u5b9a\u7269\u7406\u5730\u5740\uff0c\u800ccec-gpio\u6ca1\u6709\u7ed1\u5b9a\u81ea\u5df1\u7684HDMI\u63a5\u53e3\uff0c\u6240\u4ee5\u9700\u8981\u6307\u5b9a\u7269\u7406\u5730\u5740\n# --playback \u5c06\u81ea\u5df1\u8bbe\u5b9a\u4e3a\u64ad\u653e\u8bbe\u5907\uff0c\u4ee5\u4e0b\u662fcec\u91cc\u9762\u7684\u6240\u6709\u8bbe\u5907\u7c7b\u578b\n  --tv                     \u7535\u89c6\/\u663e\u793a\u8bbe\u5907\n  --record                 \u5f55\u50cf\u673a\n  --tuner                  \u8c03\u8c10\u5668\n  --playback               \u64ad\u653e\u8bbe\u5907\n  --audio                  \u97f3\u54cd\/AV\u529f\u653e\u7b49\n  --processor              \u89c6\u9891\u5904\u7406\u5668\uff0c\u5982madvr\n  --switch                 \u8def\u7531\u8bbe\u5907\uff0cHDMI\u5207\u6362\u5668\n  --cdc-only               \u63a7\u5236\u8bbe\u5907\uff0c\u53ea\u7528\u4e8eCEC\u63a7\u5236\n  --unregistered           \u672a\u6ce8\u518c\u8bbe\u5907<\/code><\/pre>\n\n\n\n<p>\u641e\u5b8ccec\u7684\u90e8\u5206\uff0c\u7136\u540e\u641eIR\u63a7\u5236\uff0c\u8fd9\u4e2a\u4e5f\u8e29\u4e86\u4e0d\u5c11\u5751\u3002\u4e0d\u8981\u81ea\u5df1\u7528 Python \u89e3\u6790\u539f\u59cb GPIO \u6ce2\u5f62\uff08\u6211\u4e00\u5f00\u59cb\u5c31\u662f\u8fd9\u4e48\u5e72\uff0c\u88ab\u7a33\u5b9a\u6027\u548c\u65f6\u5e8f\u5751\u60e8\u4e86\uff09\u3002Linux \u5185\u6838\u5df2\u7ecf\u6709\u6210\u719f\u7684 gpio-ir \/ gpio-ir-tx \u9a71\u52a8\uff0c\u8d70\u5185\u6838\u7a33\u5b9a\u3001\u6548\u7387\u9ad8\u3001\u80fd\u76f4\u63a5\u88ab\u4e0a\u5c42\u5de5\u5177\u8bc6\u522b\u3002<\/p>\n\n\n\n<p>\u6839\u636echatgpt\u7684\u63a8\u8350\uff0c\u7ea2\u5916\u63a5\u6536\u5668\u7528\u4e86TSOP38236\uff0c\u53d1\u5c04\u5668\u7528\u4e86TSAL6400\uff0c\u4e0b\u9762\u662fchatgpt\u5b8c\u6574\u7684\u63a8\u8350\u65b9\u6848\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7ea2\u5916\u53d1\u5c04\u4e8c\u6781\u7ba1\uff1a<strong>TSAL6400\uff08940 nm\uff09<\/strong> \u00d71<\/p>\n\n\n\n<p>MOSFET\uff1a<strong>AO3400A \/ IRLML6344 \/ 2N7002E \u4e0d\u63a8\u8350<\/strong>\uff082N7002\u5bfc\u901a\u7535\u963b\u504f\u5927\uff09\uff0c\u5efa\u8bae AO3400A<\/p>\n\n\n\n<p>\u9650\u6d41\u7535\u963b\uff1a<strong>18 \u03a9 \/ 1 W<\/strong>\uff085 V \u4f9b\u7535\u3001\u76ee\u6807\u8109\u51b2\u7535\u6d41\u2248200 mA\uff09<\/p>\n\n\n\n<p>\u6805\u6781\u4e32\u8054\u7535\u963b\uff1a<strong>220 \u03a9<\/strong><\/p>\n\n\n\n<p>\u6805\u6781\u4e0b\u62c9\u7535\u963b\uff1a<strong>100 k\u03a9<\/strong>\uff08\u9632\u4e0a\u7535\u8bef\u89e6\u53d1\uff09<\/p>\n\n\n\n<p>\u53bb\u8026\uff1a<strong>10 \u00b5F \u7535\u89e3\/\u94bd + 0.1 \u00b5F X7R<\/strong>\uff08\u9760\u8fd1 LED \u4e0e\u7535\u6e90\u70b9\uff09<\/p>\n\n\n\n<p>\u4f9b\u7535\u4e0e\u5f15\u811a\uff08\u6811\u8393\u6d3e 40Pin \u5934\uff09\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>5 V\uff1aPin 2<\/strong>\uff08\u6216 Pin 4\uff09<\/li>\n\n\n\n<li><strong>GND\uff1aPin 6<\/strong>\uff08\u4efb\u4e00 GND \u90fd\u53ef\uff09<\/li>\n\n\n\n<li><strong>GPIO18\uff08\u786c\u4ef6 PWM\uff09\uff1aPin 12<\/strong><\/li>\n<\/ul>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>TSOP38236<\/strong>\uff08Vishay\uff0c36 kHz \u63a5\u6536\u5934\uff0c\u811a\u5e8f\uff1a1=OUT\uff0c2=GND\uff0c3=VS\uff09<\/p>\n\n\n\n<p><strong>\u7535\u5bb9<\/strong>\uff1a0.1 \u00b5F\uff08X7R\uff09\u00d71 + 4.7 \u00b5F\uff08\u94bd\/\u7535\u89e3\uff09\u00d71\uff08\u9760\u8fd1\u63a5\u6536\u5934\u5f15\u811a\uff09<\/p>\n\n\n\n<p><strong>\u7535\u963b<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R_V<\/strong>\uff1a100 \u03a9\uff08VS \u7aef\u4e32\u8054\uff0c\u6291\u5236\u7535\u6e90\u5c16\u5cf0\uff0c\u53ef\u9009\u4f46\u63a8\u8350\uff09<\/li>\n\n\n\n<li><strong>R_G<\/strong>\uff1a1 k\u03a9\uff08GPIO \u4e32\u8054\u4fdd\u62a4\uff0c\u53ef\u9009\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u82e5\u8d70\u7ebf\u5f88\u957f\uff0c\u53ef\u5728 <strong>OUT \u5230 GND<\/strong> \u4e32 <strong>RC\uff08~1 k+100 pF\uff09<\/strong> \u505a\u8f7b\u5fae\u53bb\u6bdb\u523a\uff08\u901a\u5e38\u4e0d\u9700\u8981\uff09\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u642d\u597d\u4e4b\u540e\uff0c\u7ee7\u7eed\u6539\/boot\/config.txt\uff0c\u52a0\u4e0a\u4e24\u884c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dtoverlay=gpio-ir-tx,gpio_pin=12\ndtoverlay=gpio-ir,gpio_pin=\u4f60\u8fde\u7684\u90a3\u4e2a<\/code><\/pre>\n\n\n\n<p>\u52a0\u597d\u540e\u91cd\u542f\u3002\u91cd\u542f\u540e\u5185\u6838\u4f1a\u521b\u5efa\u5bf9\u5e94\u7684 rc \u8bbe\u5907\uff08\u5982 <code>\/sys\/class\/rc\/rc0<\/code> \u6216 <code>\/dev\/lirc0<\/code> \/ <code>\/dev\/rc0<\/code>\uff0c\u4e0d\u540c\u5185\u6838\/\u9a71\u52a8\u6709\u7ec6\u5fae\u5dee\u5f02\uff09\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>dmesg<\/code> \u67e5\u770b\u5185\u6838\u65e5\u5fd7\u786e\u8ba4\u9a71\u52a8\u52a0\u8f7d\u60c5\u51b5\u3002<\/p>\n\n\n\n<p>\u7528apt\u5b89\u88c5ir-keytable python3-pip\uff0c\u6d4b\u8bd5\u63a5\u6536\u5668\u80fd\u5426\u8bc6\u522b\u4fe1\u53f7\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ir-keytable -t<\/code><\/pre>\n\n\n\n<p>\u6309\u9065\u63a7\u5668\u952e\uff0c\u770b\u5185\u6838\u662f\u5426\u6709\u626b\u63cf\u5230 scancode\u3002\u5982\u679c\u6ca1\u6709\uff0c\u68c0\u67e5 <code>\/boot\/config.txt<\/code> \u7684 overlay\u3001GPIO \u63a5\u7ebf\u4e0e\u7535\u6e90\u53bb\u8026\u3002<\/p>\n\n\n\n<p>\u53bb<a href=\"https:\/\/github.com\/CZB666-wdnmd\/ir_web\">\u6211\u7684repo<\/a>\u641e\u4e2a\u7a0b\u5e8f\u4e0b\u6765\uff0c\u8fd0\u884cir_rec.py\uff0c\u4e00\u4e2a\u4e2a\u8bb0\u5f55\u4f60\u7684\u9065\u63a7\u5668\u7684\u7ea2\u5916\u7801\uff0c\u53ea\u652f\u6301NEC\uff0c\u5176\u4ed6\u7684\u81ea\u5df1\u7814\u7a76\u628a\u3002<\/p>\n\n\n\n<p>\u641e\u5b8c\u4e4b\u540e\u4f1a\u751f\u6210\u4e00\u4e2akeymap.json\uff0c\u7528\u6765\u8bb0\u5f55\u4f60\u7684\u9065\u63a7\u5668\u7684\u7ea2\u5916\u7f16\u7801\uff0c\u81ea\u5df1\u518d\u6539\u4e00\u4e0bkey_layout.json\uff0c\u6539\u4e00\u4e0b\u952e\u4f4d\uff0c\u8fd0\u884cir_web.py\uff0c\u5c31\u80fd\u5728\u5185\u7f51\u8fd0\u884c\u4e00\u4e2a\u6811\u8393\u6d3e\u9065\u63a7\u5668\u4e86\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u8981\u5728Windows\u4e0a\u6267\u884ccec-ctl\u547d\u4ee4\u7684\u8bdd\uff0c\u6211\u5199\u4e86\u4e00\u4e2acec-ssh\uff0c\u628acec-ctl\u547d\u4ee4\u8f6c\u53d1\u5230\u6811\u8393\u6d3e\u4e0a\uff0c\u53ef\u4ee5\u8ddf\u672c\u5730\u4e00\u6837\u63a7\u5236\uff0c\u8be6\u7ec6\u770b\u6211\u7684<a href=\"https:\/\/github.com\/CZB666-wdnmd\/cec-ssh\">repo<\/a>\u3002<\/p>\n\n\n\n<p>\u63a5\u5165homeassistant\u7684\u7b49\u6211\u641e\u5b8c\u518d\u6162\u6162\u5199\u3002\u3002\u3002\u3002\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f00\u5934\u5148\u8bf4\u660e\u4e00\u4e0b\uff0c\u8fd9\u662f\u4e00\u7bc7\u8fdb\u9636\u5185\u5bb9\uff0c\u5982\u679c\u4f60\u6ca1\u6709\u5c06\u5bb6\u5ead\u5f71\u9662\u63a5\u5165HomeAssistant\u63a7\u5236\u7684\u9700\u6c42\uff0c\u6216\u8005\u5bf9\u81ea\u5df1\u63a7\u5236 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-50","post","type-post","status-publish","format-standard","hentry","category-6"],"_links":{"self":[{"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=\/wp\/v2\/posts\/50","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=50"}],"version-history":[{"count":17,"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=\/wp\/v2\/posts\/50\/revisions"}],"predecessor-version":[{"id":88,"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=\/wp\/v2\/posts\/50\/revisions\/88"}],"wp:attachment":[{"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=50"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=50"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.zeng807.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=50"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}