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A look at UL/ETL Certification and Home Automation
Ever since I can remember, my dad has told me that any piece of electrical equipment that has a cord or is hardwired should be Underwriters Laboratories listed. UL listing means that a sample of the product has undergone testing and meets certain criteria for the type of device it is. Does this mean that items that lack the UL listing aren't safe? No, it could just mean that the company didn't spend the money to get the product tested.
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Ryobi 18V ONE+ HP Compact Brushless Drill and Impact Driver Review
I've written a number of times about how much I like my Ryobi tools. This summer one of my small 1.5 Ah batteries died, so I looked at getting new ones. While many people prefer the larger batteries that last longer, my projects typically are short and don't require a lot of power. The small batteries are lighter and make the tools easier to use. Home Depot (the exclusive seller of Ryobi products), has a version of 1.5 Ah batteries that don't have a fuel gauge on them; to me, this makes the batteries pretty useless. There are a number of sellers on eBay selling the 1.5 Ah batteries with the gauges for about $30 per battery.
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Debugging Firebase Analytics on iOS
Once again I've been instructed to add analytics into an app. Anyone that has ever instrumented analytics knows that it is a royal pain as analytics requires various pieces of information in all kinds of places in apps. While there are ways to mitigate the number of places that code has to be modified, someone still needs to verify that the required events are fired and the necessary parameters are included.
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Building an Air Quality Sensor
With the recent fires in California, I've been concerned about the air quality as it tells me if I should run, if we should go on our daily walk and if we should leave our doors open like we usually do. The EPA uses air quality sensors around the country to collect data and displays them on the AirNow website. These sensors are very expensive and therefore not placed everywhere. The air quality, of course, can differ depending on where you live and the closest EPA sensor to where I live is about 10 miles away. The EPA has started including data from low cost sensors made by a company called PurpleAir in their fire and smoke map.