Some time ago I worked on a home project to get a notification when my washing machine had done its job based on monitoring its power consumption. There was a good reason for that, the machine was outside the house and I had already forgotten about the laundry several times. And when that happens your only option is to wash it again, because it really smells musty… Monitoring your appliances Use ESPurna :)...
It's not that other Sonoff products are not “serious” business, but there are a number of design changes in the Sonoff S31 that make this new product a world apart. For the functional point of view it looks like a S20 with POW-powers, but they have redesigned the product completely. The result is very very interesting. Revamped case, more compact and sturdy Redesigned PCB, actually 2 different PCBs for main and control Different power monitor chip: the CSE7766 (same as in the new POW R2) replaces the HLW8012 The only drawback: it's only compatible with plug types A & B, tat is central and north-america and few other countries....
When you are hacking with IoT devices at home you get to face the challenge of accessing remotely to them, that is from outside your home network. I'm not saying your home network is a safe place, beware. But that thing outside, you know, “the Internet”, it's so scary… Unfortunately, most IoT devices are just not ready for the jungle. Neither the commercial ones, nor the hacked ones you might have....
