Hi everyone,
Could anybody help me with my code for a rule, please?
I have created a rule for my cooler which has a PWM controlled pump via Arduino.
The lowest value where the pump works is 40 and the highest is 100.
The idea is to keep the inside temperature arround 22,5°C. If the temperature is 22,5 set the value of the cooler to 40. If it is lower, set the cooler to 0(stop). If the temperature is higher then 22,5. increase the cooler value by 5. At the same time it is comparing the current temperature with the previous.
If the previous is higher then the current => decrease the cooler value by 5. If the previous is lower then the current temperature => increase the cooler value by 5.
This is my syntax
rule "Zem.Vym.- Rýchlosť čerpadla zemného výmenníka leto"
when
Item lowestTemperature changed
then
// Get the previous temperature
var previousTemperature = lowestTemperature.lastChangedBy.state
// If the temperature is 22.5, set the cooler to 40
if (lowestTemperature.state == 22.5)
{
MQTTZemnyVymennikCerpadlo_ZemnyVymennikArduino.postUpdate(40)
}
// If the temperature is higher than 22.5, adjust the cooler value
else if (lowestTemperature.state > 22.5)
{
// Calculate the cooler value based on the current temperature
var coolerValue = (lowestTemperature.state - 22.5) * 5 + 40
// If the previous temperature was higher, decrease the cooler value by 5
// If the previous temperature was lower, increase the cooler value by 5
coolerValue = previousTemperature > lowestTemperature.state ? max(coolerValue - 5, 40) : min(coolerValue + 5, 100)
// Update the cooler value
MQTTZemnyVymennikCerpadlo_ZemnyVymennikArduino.postUpdate(coolerValue)
}
// If the temperature is lower than 22.5, set the cooler to 0
else
{
MQTTZemnyVymennikCerpadlo_ZemnyVymennikArduino.postUpdate(0)
}
end
If I load this code to openhab, I get the following in my log:
2022-12-17 20:06:20.433 [WARN ] [el.core.internal.ModelRepositoryImpl] - Configuration model ‘MQTT.rules’ has errors, therefore ignoring it: [279,69]: no viable alternative at input ‘?’
[279,96]: mismatched input ‘:’ expecting ‘}’
[282,5]: mismatched input ‘}’ expecting ‘end’
Any ideas, please?
