3 ms·
I am bombarded with ads on Facebook for the Sense. This device allows you to monitor whole-home power consumption. ... I realized it would be extremely
by cbr 9y ago
I am bombarded with ads on Facebook for the Sense. This
device allows you to monitor whole-home power
consumption. ... I realized it would be extremely simple
to do something similar without any wires or hassle.
Sense monitors two things:
* instantaneous current
* instantaneous voltage
Different devices have different electrical signatures, and this allows it to learn what devices you have in your house. RTL-SDR is much too low-resolution for this.
RTL-SDR monitoring would actually be awesome to add to Sense: the method it uses for measuring current is designed for microsecond-level accuracy, not long-term accuracy like your meter. So over time they won't keep perfectly in sync. If Sense could automatically read your meter it could calibrate itself.
- collinmanderson 9y agoI've been recording my power and gas usage via RTL-SDR for over a year. You only get a data point a few times a minute (if that). However, I can usually (though not always), with context, tell that a big spike was my hot water heater vs air conditioner, etc. (Though it's not enough to get totals for the day/month/year per appliance.)
- AdamJacobMuller 9y agoWhat are you using for reading your gas meter?
- collinmanderson 9y agoI'm getting both with the same antenna. Both meters have Itron brand transmitters.