Raspberry Pi
Raspberry Pi is the small-form-factor Linux computer that battery teams reach for when they need an edge node — datalogging on a benchtop cycler, an MQTT gateway between an old PLC and a modern data lake, an in-fixture vision system for cell-tab inspection. As a hard skill it requires fluency in Raspberry Pi OS, GPIO control via Python or C, MQTT and OPC-UA client libraries, and the disciplines around running a non-ruggedized board in an industrial environment (power conditioning, watchdog timers, remote-reset hardware). Engineers apply this when bridging a legacy benchtop instrument to a modern data pipeline, when prototyping a vision-based defect detector, or when adding a cheap data-collection node next to a piece of equipment whose vendor SDK is too expensive to license.
