Monitoring home power usage on a DWS7412.2.G2
During the last month, our engery supplier installed a digital meter for our power usage at home. As he in addition to that offered to unlock the device or to give us the PIN to unlock it ourselves, I were looking for a solution to extract the data from the meter and push it into our Home Assistant installation. I bought the Volkszähler TTL from eBay and wired it onto the serial interface of an ESP8266 laying around on my desk. The seller shared me two links to YouTube videos (https://youtu.be/RbyXqJiBC8Q, https://youtu.be/VuXpzKetOhc), where he explains how to modify and build the Tasmota firmware to include the SML interface to the power meter. ...