Last Update: August 6, 2026. Original version: July 10, 2026
Since the introduction of the Treatlife Single Pole Wi-Fi Switch in 2019, it has been used by home automation afficionados that modify it to achieve local control usually with Home Assistant. I just purchased a pack of four of these switches hoping to do the same, but using Domoticz as the home automation system. After a few days of tinkering, this was accomplished, but there was some difficulty because the switches had an undocumented Wi-Fi module based on the BK7238 which is relatively new
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Last Update: April 8, 2026. Original version: May 11, 2024
A complete rewrite of the orginal May 11, 2024 post that remains available. This newer version is now a stand-alone article with numerous new examples, about interrupts, analogue input, deep-sleep and so on. All examples work with version 3.3.7 of the Espressif32 Arduino core and can be compiled and run within the Arduino IDE or within the pioarduino IDE extension
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Last Update: April 16, 2026. Original version: January 19, 2026
Maybe the best way to celebrate a new year is to have a look at a new Seeed Studio XIAO. Released last Friday on the 16th, the RISC-V basedXIAO ESP32C5 is system that is faster than its older sibling the XIAO ESP32C6 but has less RAM. However it has twice the flash memory, 8 MB of PSRAM where the ESP32C6 had none and can use the 5GHz Wi-Fi band
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Last Update: October 31, 2025. Original version: October 30, 2025
The post shows how to implement the advice from the pool.ntp.org projet : please set up one of your computers as a time server and synchronize the other computers to that one [...] it's not difficult [...] It is quite easy to do in OPNsense, once you know how
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Last Update: October 30, 2025. Original version: October 10, 2025
After more than a year in service and some hardware modifications to the local network, OPNsense has been installed on a new mini PC. This is an opportunity to take a closer look at the network structure and configuration. A series of posts on various aspects of this review is announced.
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Last Update: November 28, 2025. Original version: October 9, 2025
This post details the process of obtaining OPNsense, installing it on a mini PC, and performing a basic configuration. Some elementary aspects of using the firewall are also covered
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