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Scripting KiCad to make coils - I've been diving deep into the world of PCB (Printed Circuit Board) coils, inspired by Carl Bugeja's incredible PCB motors! After deciding to set up an automated process for creating the coils rather than manually drawing them (can you imagine?), I found our main constraints became track width and spacing, and the number of layers we could use. During the process of creating spirals for our coils, I encountered some interesting problems - spirals are easy, but what about arbitrarily shaped coils? My attempts ultimately lead me to develop more efficient algorithms and KiCad plugins to generate these special coils. A rewarding challenge of math, programming, and electronics! My code has been published on GitHub, and I’m eager to see how others might make use of it!

Printing PCBs At Home! - Got my hands on a Voltera machine for at-home PCB prototyping - it's a game-changer! Using conductive silver ink, it prints traces and pads, but it's quite finicky, much like 3D printing. It has limitations, such as trace widths, pin pitch for SMT components, and the high cost (over $5000). Plus, this tech requires a delicate touch due to the fragile ink bonding. Despite the machine's impressive capabilities, my partnership with PCBWay is still going strong, as this isn't a one-size-fits-all solution. Nonetheless, the ability to whip up a PCB in just a couple of hours is seriously impressive.

How do we debug? - Today, we dissected a classic programmer joke about the stages of debugging and why we find it funny while it reflects a dire situation. We pondered why our first instinct is to dismiss a bug, dug into invalid claims about machines, and appreciated the shift from denial and blame to accepting responsibility and finding solutions. After deconstructing the old stages of debugging, we reconstructed healthier, proactive stages with prime focus on problem-solving. Next, we explored different types of bugs from easy user interface bugs to the complex Heisenbugs. Lastly, I highlighted logging, debuggers, and good old human brainpower as instrumental tools for debugging. Be patient, be a detective.

No Power? No Problem! A Wireless Pi Doom Machine - In my latest wireless charging experiments, I got my hands on a set of wireless charging PCBs and dove into testing different voltage inputs and their efficiency levels. It was interesting to realise that the 5V input managed to provide a decent efficiency of 73%, while 12V input struggled and heated the receiver board excessively. With the perks and limits of this setup explored, I took a whirl at creating a wireless Pi Doom machine. It worked like a charm! However, I quickly noticed the need to split charging and boost board into two different modules - a project to look forward to. Half the fun is getting there! Check out the video [here](https://youtu.be/glCIuOoFm7U) for more detail on the project.

The PCBs are in production - what have I messed up? - After some stress and trepidation, I finally took the plunge and sent my PCB design off for manufacturing. My design centers around building a large seven-segment clock with LED filaments. Jumping hurdles such as voltages, pin usage, and limiting the load on my power supply, I've settled on the ESP32 as the system's heart and come up with a final circuit design. While doing this, I've quickly realized I could improve my layout and fixed a small mistake. Also, I've prepared for either types of LED filaments - the high-voltage ones or the larger, 3v ones. However, I did bungle up a couple of things on the enable line of the shift registers and board layout. But hey, this is a learning curve, right? Can't wait to get the boards and see what other exciting errors surface!