last modified: October 23, 2025
Posted on 2017-03-09— How and Why
I walk you through designing the final PCB for a low-cost plant watering sensor: choosing tools, shaping the board, iterative layouts, BOM decisions, assembly planning and unit-cost calculations. If you want practical steps and cost details, please read the full post to follow the next parts.
Posted on 2016-10-09— Projects
I've just finished Part 2 of the Outmoded Sequencer project, sharing the journey from prototype to final device. I explain the custom PCB work, lessons learned (including unreliable steel-ball matrix switches), and practical recommendations. If you're curious, please read the full post for build tips and cautions.
Posted on 2016-09-17— Projects
I just finished the final Outmoded Sequencer and I'm pleased with how quickly tuning went using a new method. The device plays well, though the steel-ball contacts are only okay in spots. Read on for photos, my planned demo video, filter chain tests, and PCB giveaway details.
Posted on 2016-09-17— Projects
I recently assembled the final Outmoded Sequencer PCB and documented the soldering in a short video. I accidentally cut a bottom trace and repaired it with a jumper wire; the magnet matrix now secures the steel balls. I'll finish tone tuning and add four resistors — please watch the video and read on for details.
Posted on 2016-09-05— Projects
I received the final black-and-gold PCBs for the Outmoded Sequencer and I’m pleased with the glossy finish, strong solder-mask contrast, and simplified routing after rearranging components. I cover the size changes, routing choices, and manufacturing details—please read on if you’d like the full build and photos.
Posted on 2015-09-14— Projects
I'm putting the finishing touches on the deluxe data logger: hardware is built and tested, and I'm finalizing the menu-based software. It includes five capacitive inputs, record/view/send/erase functions and wireless charging. Please read the full post for details and prototype photos.
Posted on 2014-11-08— Common, Projects
I tested a prototype of my Cat Protector and then built the finished device. I’ve added a new page that walks through the whole process—design tweaks, parts, assembly, and final testing—in clear, practical steps. If you’re interested in building or learning from the project, please read the full walkthrough.