how to inverse MQTT payload

[agroszer]

Trying to make a relay work over MQTT. MQTT import works fine, but would be nice to invert the payload of the MQTT message not to go insane.

This works just fine:

Code: Select all

on mqtt#venti1 do
  logentry,"venti1 %eventvalue%"
  pcfgpio,8,%eventvalue%
endon

I hoped "1-value" would work, but apparently the parameter is not evaluated just the template expanded:

Code: Select all

on mqtt#venti1 do
  logentry,"venti1 %eventvalue%"
  pcfgpio,8,1-%eventvalue%
endon

Any hints appreciated.

[Ath]

A simple 0/1 value can be inverted by using the Let statement and the ! (not) operator:

Code: Select all

  Let,1,!%eventvalue1%
  pcfgpio,8,[int#1]

[agroszer]

thanks