Trammell Hudson @th@v.st

After a few seconds in the sun, the display goes all glitch. I wonder if there is a temperature compensation command that I'm missing.

The e-ink display works and pull request sent to esphome. Now it's time to futz with fonts and interface layout.

b74 epaper display variant almost works

"These aspects of cryptology are now known as `ciphony`, `cifax` and `civision`."

Unrelated FOIA find -- Public Law 86-36 redaction on an illustrated bottom. https://archive.org/details/cryptolog_35/page/n5/mode/1up

It's a beautiful Sunday afternoon, time to file more FOIA requests.

Toaster PWM

You might get wet on this ride.

everyone loves content warnings

@ln @cr1901 curl ifconfig.io also works, if you want a trailing newline.

Schematics and source code for interfacing an esp32 running esphome with the Digital Smart Meter P1 port: https://trmm.net/Smartmeter/

@vfrmedia @penguin42 the meter reports the power on each leg as well, although I haven't mapped out which circuits are on which phase.

Now with an on-device power graph as well.

Now the P1 power data shows up in grafana for the house dashboard.

@Sophistifunk@noagendasocial.com the poor ergonomics of hacking on a welcome mat since the power meter is an entryway closet

Smart meter P1 data port parser is working!

social.v.st now has search capability! https://docs.joinmastodon.org/admin/optional/elasticsearch/

Without the pullup, there does not appear to be any data on the smart meter's P1 port. The documentation doesn't mention that it is open-collector output and even says the output voltage is >4V for `0`. I had to buy a €15 adapter cable and disassemble it to learn this, so I hope this information helps someone else.