Node-REDからsACNで複数のODE-MK2に照明データをおくり、複数のDMX信号を送るフローを作成しました。
ODE-MK2の設定
DHCPをdisableにして固定IP化。
Node=REDからはsACNで信号を送り、ODE-MK2からはDMXを送るという使い方です。
フェードの設定(ODE-MK2側)
ODE-MK2を使うと自由度は高いのですが、一般的なDMXコントローラーで簡単に使えるフェード機能は自分で実装する必要があります。
ODE-MK2側で１秒間に何回のデータを送るのかのframerateは0〜44で設定できます。
今回は40に設定。
フェード・インの設定(Node-RED側)
Node-REDでのフェード機能は”Dim UP”というfunctionノードで作成しました。
Forループでデータを送っているのですが、この後のDelayノードに送るデータ msg.rateも設定しています。
というのも、sACNノードが即時にデータをおくってしまうので、Delayノードを使って流量制限をします。
その際、ms単位の流量制限は、msg.rateで送る必要があります。
フェード・アウト(Node-RED側）
フェード・インの後にフェード・アウトが実行されるよう、Delayノードを使っています。
Dim DOWNのfunctionノードはこのようにしました。
動作確認
複数の固定IPのODE-MK2に対し、フェード・インとフェード・アウトのDMX信号を送らせる実験は成功しました。
Node-REDのフロー
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