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Category Archives: Technik
Extending the Battery Life of Your IKEA Motion Sensor: Replacing CR2023 Cells with AA Batteries
The IKEA TRADFRI motion sensor is a versatile and affordable device that integrates seamlessly into your smart home zigbee setup. I personaly use them in a cuple of places, in the postbox to notify me on new mail and in … Continue reading
Unlocking Time: Harnessing the power of temporal tables in SQLite
SQLite is a remarkable, versatile and widely adopted embedded relational database. Extending it to store temporal tables makes it even more useful. This post will tell you what temporale tables are, why they are helpful, and how to get them working with SQLite. Continue reading
Modern TLS Version for dovecot & postfix
(TLS 1.2 or newer) You can use the following settings to ensure that Dovecot and Postfix use a modern TLS version: For Dovecot: For Postfix: Finally, reload Postfix with systemctl reload postfix and restart Dovecot with systemctl restart dovecot.
Setting up timesync via NTP on debian & raspberry pi
I use systemd-timesyncd to keep the system time up to date on my raspi / debian system.To do so i did the following steps: 1. Check the state of timedatectlTherefore type the comand timedatectl to the shell.The output should look … Continue reading
Erase ESP – quickly reset the wifi chip
TLDR: Install esptool.py pip3 install esptool Erase flash of the esp esptool.py — erase_flash One of my smart ESP devices wasn’t responding after a power down. I debugged the problem by connecting it to a serial interface. On the comandline … Continue reading