RA Star Instability

Basic / Standard Reef Angel hardware

Posts: 10
Joined: Tue Jul 14, 2020 9:00 pm
PostPosted: Wed Sep 08, 2021 2:01 pm
I recently upgraded from RA Plus to RA Star, and I am experiencing some odd behavior. Some of the symptoms include:

  • All I/O expansion channels briefly flash to "on" and then back to their normal values
  • Water levels briefly change to 0 and then back to their normal values
  • pH probes show very high or very low values and eventually return to normal

When I compiled in Arduino recently, I believe I saw the following message:

"Low memory available, stability problems may occur."

Could this be related to the issues I'm seeing? I didn't have these same issues with RA Plus.

I'm happy to do further debugging, if anyone has any ideas on what steps to take next.


Posts: 10
Joined: Tue Jul 14, 2020 9:00 pm
PostPosted: Fri Sep 10, 2021 10:41 am
Anyone have anything thoughts on this? Right now, the controller is actually working against me. My skimmer is shutting down because it thinks the skimmate container is full. My pH values are killing my kalk reactor and calcium reactor. But these changes only last a second before returning to correct values.

Posts: 12797
Joined: Fri Mar 18, 2011 6:47 pm
PostPosted: Mon Sep 13, 2021 8:55 pm
Try moving the power cables away from the USB cables and sensor cables

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