Recent content by bwinkler

We have UPSs to handle outages in the short term and a generator for when the power is out for longer. The UPS notifies me when the power goes out, but it doesn't know the difference between when the generator kicks in (on an automatic transfer switch) or when the main power has been restored...

I'm planning to set up a 1-wire network to monitor the temperature and HVAC in my server room. I'd also like to monitor whether our backup generator is running and I'm wondering if the HVAC monitor could be modified to check for 110v AC on one or more of it's channels. I'm not an EE by any...