Relay contact is closed when a device power is off

[Masato Izumi]

Hi,

I'm developing on RevPi connect+ 32GB.
I want to use a relay at the connector X2 as a make relay like below.
Device power-off: relay Open
Device power-on: relay Close

However, the relay acts as below
Device power-off: relay Close
Device power-on: relay Close

I can open the relay via the status byte RevPiLED but I can't change the relay state when power off.
How can I change the relay settings?

[u.biakoup]

Hello,
unfortunately, it is not possible to keep the relay contact open when the Power is off: the revpi connect is equipped with a relay that is normally closed by default.


Best regards

Ulrich Kouatang Biakoup | Technical Support

[Masato Izumi]

Hello,
Thank you for your reply.

Can I choose Normal Open relay when I order Revpi?

[u.biakoup]

Hello,
No, it is not possible to choose normally open when ordering a Revpi. This is a stable convention.
How to use the relay see here: https://revolutionpi.com/tutorials/uebe ... rect=en_US

Best regard
Ulrich Kouatang Biakoup | Technical Support