Author Archives: admin

Extending the Battery Life of Your IKEA Motion Sensor: Replacing CR2023 Cells with AA Batteries

Posted on 15 January 2025 by admin

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 →

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Unlocking Time: Harnessing the power of temporal tables in SQLite

Posted on 19 February 2024 by admin

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 →

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Modern TLS Version for dovecot & postfix

Posted on 4 March 2023 by admin

(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.

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Setting up timesync via NTP on debian & raspberry pi

Posted on 6 January 2023 by admin

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 →

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Erase ESP – quickly reset the wifi chip

Posted on 31 December 2022 by admin

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 →

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