start the timer with a control msg (i.e.activate the ability to set the timer value to an arbitrary value during the count down with the use of a control msg.restart (reload) the timer to its countdown start value during the count down whenever a msg is received at the node's input.In both cases, also nothing to be emitted may be chosen. Set the Timer Off payload to any payload type and value which is sent when the counter elapses. Set the Timer On payload to any payload type and value which is sent when the counter starts. This string is added to the output msg as an additional element msg.topic. The Topic can be set to any string value. The timer will start with this countdown value to decrease the timer value (countdown start value). Set the Countdown value to the desired countdown time in seconds. 2: Node properties Countdown (secs) property
#Red countdown timer install#
run npm install node-red-contrib-countdownįig.go to the Node-RED installation folder, e.g.: ~/.node-red.Via Manage Palette -> Search for "node-red-contrib-countdown".Loosely based on prior work by Neil Cherry: The node's output msg can optionally contain an arbitrary topic string. The output can emit a msg at its first output with an arbitrary msg.payload contents at the start of the timer as well as at the stop of the countdown timer.Īt the second Output the node emits the remaining counter value every second. Also the countdown timer can be set to any new countdown value at any time to reload the timer with a specific value. The countdown can be stopped at any time. It starts a countdown timer on a received input msg and decreases the counter value (at the first output) until the countdown timer elapses. Node-red-contrib-countdown is a simple countdown node.
A countdown that supports dynamic setting of (future) run time
0 kommentar(er)
