#閾値によって判断する
- センサーからの値など、ある値を超えた際にだけ後続の処理を行わせたい場合があります。
- Node-REDのフローをコピーする方法を参照して、下記のフローをコピペします。
閾値によって判断する
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-
「1」や「-1」では
msgが伝搬されず後続のノードが実行されないことを確認します。 -
「5」や「-5」では後続のノードが実行されます。
-
「閾値判断」functionノードのjsは以下の通りです。
閾値によって判断する
if ( Math.abs(msg.payload) < 3 ) {
msg = "";
}
return msg;