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Null Hardware's Latest Blog Posts
Here is a simple fixed-point approximation to sin (and cos) appropriate for embedded systems without dedicated floating-point hardware. It is accurate to within ±1/4096 (0.01% Full-Scale). No lookup-table is required, and portable C code is available. Read More.
Cities are put in a tough spot. They want to provide their citizens with the best possible benefits, the best possible transportation, and the best possible reasons to live there. However, they don’t really have the data they need to make informed decisions. BetaCityYEG has a vision of developing open civic technology to make this possible. After all, how can you serve your citizens without understanding them first? Read More.
For too long technical solutions have evaded beginner makers and hackers. Obscure forum posts detailing initialization sequences divined through trial and error. Five year old comments on a vendor website detailing a critical oversight on a datasheet. These scenarios are far too common in our industry, but that’s not the worst of it. There’s also the well-intentioned (but naive) makers who post bad, misleading, and outright wrong information. For years we ignored it. We’re a team of professional embedded developers. We were trained to filter out the good from the bad, to use our google-fu to seek out the answers that we sought. When we wanted something, we figured... Read More.