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wifi

Connectivity for the Internet of Things

Let me say it up front: I don't think the internet-of-things is being deployed for reals in the home by many people at this point. My argument is simple: nobody ever talks about the number one frustration that I have in my home, and I don't think I'm unique: WiFi coverage, or the lack thereof.…

Wansview NCB541W review

Wansview is bribing me, with $10, to write a review for their Wansview NCB541W camera. Deal! In summary: the hardware is nice, the software and the documentation sucks. Hardware: Good: can pan and swivel by remote control Good: comes with mounting bracket Ok: picture quality Bad: audio out and power in have the same plug…

My Raspberry Pi Pool Timer — Mechanical Assembly

(Previously I discussed the the why of this project, the parts I selected to build with, setting up the Raspberry Pi itself, and the electronic assembly In this post, it's getting serious: I put all the parts together in place in the back yard.) Recall that I got into this project because an old electromechanical…

My Raspberry Pi Pool Timer — Selecting the Parts

(See post on the why of this project. In this post, I describe how I arrived at the picking the parts that I did, assuming it might be useful for others considering similar projects.) I start by investigating suitable hardware platforms, and quickly figure it will have to be either an Arduino or a Raspberry…

My Raspberry Pi Pool Timer — Why

(There will be more parts.) Here's my problem: The filter and the sweep of my pool need to be run every day for a few hours. The corresponding pumps are controlled by two electromechanical timers, one of which failed recently after probably more than 20 years of service. (Timer shown to the right.) Turns out…