I have a few hanging devices whose power draw I’d like to know, but I don’t particularly care for controlling them. Is there a cheapish way of doing that? I mostly have Fibaro Zwave smart plugs or Fibaro switches inside the light switches when I actually want to control the on/off, but these cost like €50 these days and it’s hard to justify for energy monitoring. I have a Shelly 3em in the fuse box, but there is no more space there really.
I have ZWave, Zigbee (deConz), Wifi and even 433 Mhz RFXCOM and ESPHOME with BT. I guess keeping it off Wifi would be an advantage. I am in the EU
@Mr.ToR presented his very nice (cheap & accurate) self brew here
For what reason? I guess Wifi is the most “performant” (highest bandwidth) technology of the ones you presented. You can easily report every 0.1 second with the linked setup (pzem004t + esphome over wifi).
This is the perfect recipe to burn down your home. Hackish as hell with 230V. Don’t do that. Just… don’t. Do improvised connections with tape and zipties all you want on 5V. But 230V is a completely different beast. If things go wrong, they will go wrong really badly.
Dude, don’t be such a finicky, overly cautious, fussy person.
Do you even know what might be a reason for electrical fire?
If you are used to living with sub-standard or bad thermal circuit breakers in your home, you might have electrical fire from anything.
Do not make a fuss about proper electrical wiring you’re not used to seeing. This is proper prototype engineering and there is nothing wrong with it.
Do you know that the PZEM board itself has more potential for a fire? Are you even aware that your smart phone is a much more probable cause for burning your house down?
You can simply spend a couple of more dollars and buy proper female mains connectors. While wiring the female mains connectors, as per your anxious approach, do not use silicon electricans tape or zip ties and do not use heat shrink for securing anything and most importantly do not use any solder on any cable used with mains electricity, as many similarly overly cautious people would state.
By the way, AC mains power is not a beast as you’re imagining. If you’re not educated or experienced in electrical work, stay away from doing anything with it as well as making baseless comments.
