Posted in IoT, OpenGarage on Jan 23rd, 2026
If you have recently shopped for a new Chamberlain or LiftMaster garage door opener, you might have noticed a new term: Security+ 3.0. While “new and improved” usually sounds good, this latest update has thrown a wrench into the smart home community. Here is a breakdown of what is going on, why your existing gadgets […]
Posted in Learning Electronics, OpenSprinkler, Sprinkler Projects on Jan 9th, 2026
Introduction More than a decade ago, I published a blog post titled Understanding 24 VAC Sprinkler Valves. In that post, I took a close look at the sprinkler solenoid’s inrush vs. holding currents under 24 VAC, performed theoretical analysis and actual measurements, and explained the difference in the solenoid’s electrical behavior under AC vs. DC. […]
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