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A long time ago, in a galaxy far, far away, there was an unfinished project sitting on a table, just waiting to be completed… Since it has been just about a year since I last worked on this project, let’s take a short inventory first: Working: High Voltage Power supply Nixie-Tube Drivers Nixie-Tubes What doesn’t: Software Case USB-C-PD Wanted Features: Automatic time setting via a timeserver USB-C power supply Dimming during night time Frequent cycling of all numbers in order to reduce wear and tear On the software side, the WLAN capabilities of the ESP32 MCU are used, which enable the connection to a time server for accurate timekeeping....

Indoor air quality is often overlooked, but it’s critical to our health as we spend the majority of our time indoors. Therefore, it’s essential to assess the air quality and make improvements if necessary. So, have you checked the air quality in your environment? Quick Note: You can find this projects code and documentation on Github! Well, lets quantify it: CO2 is the most crucial short-term indicator, measured in parts per million (ppm)....

One might recognize them from the bomb-defusing scene in the Bond movie ‘Goldfinger’ or the Divergence Meter from ‘Steins;Gate’. In short, they consist of ten (0-9) wires glowing neon yellow in a vacuum tube. First replaced by seven-segment displays, they are becoming increasingly popular nowadays due to their aesthetic appeal. While there are many kits available online, where’s the fun in buying one? Designing the Circuit: The main difficulty in a Nixie clock lies in its operating voltage, which is around 170V....

So like many others during the pandemic, whether studying or working from home, both myself and my neighbors struggled with maintaining a healthy diet every day. Many of us were accustomed to relying on the convenience of workplace canteens and found it difficult to find the time to cook each day. About two months in, I discovered that the local butchers offered a daily menu, and it was great. However, some meals contained ingredients that some people may not prefer, such as intestines....