This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.

MAXREFDES130 Building Automation Shield

Maxim’s MAXREFDES130 is a building automation shield for prototyping with Arduino and mbed platforms. The board includes ten analog outputs and separate 4-20 mA input and output.

A 1-wire master enables expansion of the capabilities, including the addition of Maxim’s MAXREFDES131 Grid-EYE sensor board, which can be used to add presence sensing, people counting, and gesture feedback to a design.

Daisy-chaining and remote placement allow multiple sensors to be placed throughout a building. The building automation shield includes multiple latching and non-latching relays that allow users to integrate existing, legacy equipment, including temperature control and AC loads, into a modern control and communication system.



  • 8x 0-10VDC Analog Outputs
  • 1x 4-20 mA Current Loop Input
  • 1x 4-20 mA Current Loop Output
  • 8x nonlatching relays
  • 3x latching relays
  • 1-Wire Master



  • 1-Wire interface with 100m range
  • Presence, count, gesture feedback


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