Interactive tabletop playing surface (Space Hulk Hobby Challenge)
Online Space Hulk
Hall sensors and a microcontroller allow the presence (or absence) of a miniature to be detectedIt started out as a series of interconnected terrain pieces, in a Space-Hulk style. Each piece had an embedded microcontroller and an array of hall sensors to detect the presence (or absence) of a miniature above it.
Any miniature could be used, from any range, at any scale. Simply place a neodymium disc magnet into the base, and the miniature can be detected when placed above one of the many sensors in the terrain. Because the sensors are entirely contactless, it even works through different (non-metallic) terrain types.
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