Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

AI-powered heart sensor data from an Apple Watch accurately detected heart problems like weakened pumping ability and damaged ...

Tools like Excel and Google Sheets are ubiquitous these days, and learning how to use them more effectively will quickly ...

Fix Excel formulas that won’t spill! Learn how to troubleshoot #VALUE errors caused by Analysis ToolPak functions and improve your workflow.