Obstruction sensor issue

[arnerek]

Hi

Thanks for the great work with the ratgdo. I have one issue with the ratgdo 2.5i

With an obstruction present I get lot of on/off cycles per second:

Anyone experienced similar behavior?

[rwalker777]

Saw same problem after power outage. Once light was turned on, this stopped.

[PaulWieland]

Please share a photo of your opener / sensors (I am assuming these are both ROW openers).
The North American openers go into sleep mode when the light is turned off and the sensors power down. During this time no obstruction sensing is possible and the obstruction detection code has to deal with the condition.

In lieu of using an oscilloscope, its possible to create a test firmware which simply outputs the pulse frequencies being detected from the obstruction sensor circuit to try and trouble shoot why this is occurring.