MicroSD cards. They are used in phones, cameras and all kinds of devices. A no-brainer to add some extra storage capacity to your project. They are advertised by their average read/write speed in MB/s. But there is a metric that is at least as important for certain applications: latency…
Recently we worked on a project where we needed to power custom electronics with electricity generated from cycling. To figure out what dynamo was most suitable for the job, we needed to characterize them in a repeatable manner.