Rule to set SetPoint Heating

Setup, Configuration and Use Scripts & Rules
1

I am running openhab2.4 I want to create a rule to change the temperature of my TVR at specific time of day.

I made this rule, first time Ever!:

var myTemperature = 22|°C
rule "Thermostats at evening"


when
  Time cron "0 40 * ? * MON,FRI"
then
  HallwayValve_SetpointHeating.sendCommand(myTemperature)
end

The Item name is: HallwayValve_SetpointHeating. How can I make it change temperature?

I also save the rule undeR: /etc/openhab2/rules/EveningSetPoint.rules

I can see at logs that the rule is accepted by the system. But no other actions happen.

Any advice?

2

First your cron triggers every 40 minutes. Is that what you want?
Use: https://www.freeformatter.com/cron-expression-generator-quartz.html
To generate cron strings. Very helpful

Change

var myTemperature = 22|°C

to

val Number myTemperature = 22