A web-app (web-interface) for Peacefair PZEM energy monitors.
It’s supposed to work on a local machine with local devices and local database.
It uses Web Serial API to connect to PZEM devices and IndexedDB to store data.
Small Perl script to check that your HTU21 module is working if you happened to have a Perl-capable device with HTU21 attached to I2C bus.
Script depends on Time::HiRes Perl module and i2c-tools package.
A short article about PC application which works with old version of PZEM-004T using RS-232 interface.
My experience of installing and using Windows 7 on DELL Latitude 3490.
This post can be partially helpful in installing Windows 7 on some other Kaby Lake based (8th gen) laptops.
This is an example of autoit script which partially solves the issue, when laptop screen does not turns off on lid close.
A post about my experience with hdparm during the battle with extensively clicking hard drives on Windows and Linux.
This post describes my variant of a system that is able to store and visualize the history of power consumption of a household. System is based on “AC multifunction meter” PZEM-004T and NodeMCU ESP-12F (ESP8266) which transmits data to a remote MySQL database.
Not very nice workaround for a problem on Kubuntu 18.04 laptop when system doesn’t notice that external HDMI display has been disconnected if the speed which user plugs out HDMI cable is less than five speeds of light.
I will describe my unfinished (I would say just started and died in infancy) attempt to create an Android app that would compete (ha-ha) with such app as TEMS. It had to acquire physical network parameters and call flow data.
This short article is about custom rules for uBlock Origin that (yet) could be used to remove commercials from web pages even if the page uses random generated element ids and css classes. Basic knowledge of html/css required.