求助,改变灯的颜色和亮度，应该怎么填
求助,改变灯的颜色和亮度，应该怎么填 brightness是灯的亮度,0-255,可以去ha的服务里查看相应的json对应的key-value```json
{
"entity_id": "light.xxx",
"brightness":"20"
}
```
不知道为什么brightness不行，brightness_pct才行 会弄了，原来最有效的办法是搞个函数。
newmsg = {};
brightness = msg.payload;
if (brightness <= 30){
brightness = 60;
}
else if (brightness <= 60){
brightness = 100;
}
else {
brightness = 30;
}
// color_r=(Math.random()*255);
// color_g=(Math.random()*255);
// color_b=(Math.random()*255);
color_r=Math.floor(Math.random()*200);
color_g=Math.floor(Math.random()*200);
color_b=Math.floor(Math.random()*200);
newmsg.payload = { data: {"brightness_pct":brightness, "transition":0.5,"rgb_color": }};
return newmsg;
xinqinew 发表于 2018-9-6 14:42
会弄了，原来最有效的办法是搞个函数。
newmsg = {};
大神 能在下面把 nodered的小夜灯的代码贴出来吗？
nodered新手， 各项功能还不熟悉，刚好有小米网关,只会导入参考修改 本帖最后由 xinqinew 于 2018-9-9 19:57 编辑
[{"id":"348df270.c8be9e","type":"api-current-state","z":"62c8c69.94b5c38","name":"小夜灯状态","server":"a9ceda93.3e29c","halt_if":"","override_topic":true,"override_payload":true,"entity_id":"light.gateway_light_34ce0088a3a0","x":910,"y":380,"wires":[["e9420951.db0558"]]},{"id":"e9420951.db0558","type":"switch","z":"62c8c69.94b5c38","name":"Light On/Off","property":"payload","propertyType":"msg","rules":[{"t":"eq","v":"on","vt":"str"},{"t":"eq","v":"off","vt":"str"}],"checkall":"true","repair":false,"outputs":2,"x":1090,"y":380,"wires":[["ddc2dd00.7cd15"],["88fc503e.20e76"]]},{"id":"ddc2dd00.7cd15","type":"change","z":"62c8c69.94b5c38","name":"获取亮度","rules":[{"t":"set","p":"payload","pt":"msg","to":"data.attributes.brightness","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":1240,"y":360,"wires":[["e0d5d93e.436eb"]]},{"id":"e0d5d93e.436eb","type":"range","z":"62c8c69.94b5c38","minin":"1","maxin":"255","minout":"1","maxout":"100","action":"clamp","round":true,"property":"payload","name":"亮度 %","x":1420,"y":360,"wires":[["d814cee5.037ca"]]},{"id":"182248db.142397","type":"api-call-service","z":"62c8c69.94b5c38","name":"小夜灯","server":"a9ceda93.3e29c","service_domain":"light","service":"turn_on","data":"{ \"entity_id\": \"light.gateway_light_34ce0088a3a0\"}","mergecontext":"","x":1790,"y":360,"wires":[[]]},{"id":"d814cee5.037ca","type":"function","z":"62c8c69.94b5c38","name":"亮度和颜色 Data","func":"newmsg = {};\n\nbrightness = msg.payload;\n\nif (brightness <= 30){\n brightness = 60;\n}\nelse if (brightness <= 60){\n brightness = 100;\n}\nelse {\n brightness = 30;\n}\n// color_r=(Math.random()*255);\n// color_g=(Math.random()*255);\n// color_b=(Math.random()*255);\ncolor_r=Math.floor(Math.random()*200);\ncolor_g=Math.floor(Math.random()*200);\ncolor_b=Math.floor(Math.random()*200);\nnewmsg.payload = { data: {\"brightness_pct\":brightness, \"transition\":0.5,\"rgb_color\": }};\n\nreturn newmsg;","outputs":1,"noerr":0,"x":1620,"y":360,"wires":[["182248db.142397"]]},{"id":"88fc503e.20e76","type":"api-call-service","z":"62c8c69.94b5c38","name":"小夜灯","server":"a9ceda93.3e29c","service_domain":"light","service":"turn_on","data":"{ \"entity_id\": \"light.gateway_light_34ce0088a3a0\"}","mergecontext":"","x":1230,"y":400,"wires":[[]]},{"id":"72d7fbfa.b7483c","type":"inject","z":"62c8c69.94b5c38","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":750,"y":420,"wires":[["348df270.c8be9e"]]},{"id":"a9ceda93.3e29c","type":"server","z":"","name":"Home Assistant","url":"http://192.168.0.101:8123","pass":"12345678"}] 太感谢了，准备配合天气用 好用，看看能不能利用在其他上面，嘿嘿 改變顏色寫法如圖如下所示，ＲＧＢ顏色查表既可{ "rgb_color": }{
"rgb_color": [
255,
100,
100
]
}
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