What is the name for an electronically controlled pin grid array like Pin Art toy?

The discussion centers on identifying or creating a compact electronic device capable of individually moving hundreds of pins arranged in a dense grid, similar to the Pin Art toy or Hyundai's dynamic wall installations. No off-the-shelf component exists for this specific function. Suggested solutions include arrays of solenoids (electromagnetic coils) to actuate pins, though challenges arise from size constraints and electromagnetic interference. Alternative actuation methods proposed are linear actuators, bimetallic strips that bend when heated by current, compressed air systems controlled by solenoid valves, and nitinol shape memory wire coils that contract when electrified. Braille printers were noted as a related technology due to their dot-punching mechanisms, and electroactive polymers were mentioned as a potential advanced material for actuation. Ready-made controllers, such as those used in LED dot matrix signs, could be adapted for controlling solenoid arrays. Rapid prototyping approaches and digitally reconfigurable molds were also referenced as possible development aids. The overall consensus is that a custom solution integrating multiple technologies and control hardware/software is necessary for such a device.
Summary generated by the language model.