Oh,i found it: one pin was assigned twice (for the ultrasonic and the relais)
Now it works, sorry

Hello
I have connected a 5v Relais plus a HCS04 ultrasonic sensor on a Wemos. Anytime the US Sensor is connected i cant Control the Relais anymore.
Does someone has a workaround or hint?

Thx
Ole

Thx !
...the missing 'do'

Hello i want to control the temperatur with a simple 2-state control (on/off). My rules does not work and i don't know why. Does anyone see an error in my rule? Also if i test the relais with the gpio command they are inverted: 1 -> Off and 0 ->On (but this is a minor problem) on DS18#Temperature if...

i tried this first - no success

such a type

ok . yes i did a reboot

Hello I have a problem with the rotary switch:it does not count ! I have connected the two outer pins of the switch (Not a shield with pwr and gnd) to the gpio‘s,configured them ...but no counting at all. Do i have to connect the pins via a resistier to Vcc? Thx if someone has a hint or workaround ....