RAYSHOBBY.NET

My fortune cookie last night said I have recently left many things undone, and at this rate I may never get them done. Quite alarming indeed. One of the things I haven’t done well recently is regular posting on this blog. So I’ve decided that before the year ends, I have to remedy this by […]

Read Full Post »

After several months of continued development, I am excited to announce the release of the first DC powered OpenSprinkler — v2.3 DC. This version uses a 9V DC universal power adapter, and is designed to work with both standard 24V AC sprinkler solenoids as well as DC (e.g. 12V DC) non-latching solenoids. Below are two […]

Read Full Post »

Since March this year, orders of OpenSprinkler have been increasing rapidly. Within a couple of weeks, we’ve done two batches of OpenSprinkler 2.3 at our local manufacturer — Worthington Assembly Inc. (WAi). Previously I have blogged about OSPi manufactured at WAi, and I’ve shown videos of their SMT surface mount manufacturing pipeline, including pick and […]

Read Full Post »

Hey, it’s March already, that means spring will be here soon! Amid an unusually cold winter and freezing weather this winter in New England, we’re finally starting to see some warm winter days. No more snow please, we’ve had enough 🙂 Ars Technica This post is to give you some recent updates on OpenSprinkler and […]

Read Full Post »

Around Thanksgiving last year, I received a request from a biology lab professor who commissioned me to modify OpenSprinkler to become a custom fluidics controller. The goal is to achieve web-based, programmable control of fluid selector valves, linear actuators, relays, and air valve, to automate a custom biology experiment. I don’t typically accept contract work, […]

Read Full Post »