This solution uses a microphone to detect when the glass is broken. Active filtering for the microphone is implemented using the microcontroller's onchip low-power op-amp. Reduces costs while achieving extended operation on battery power.


  • Microcontroller: RL78/I1D low-power analog microcontroller
  • Solution board: RL78/I1D Detect it! glass break detector board

Circuit diagrams, parts lists, and sample programs are available.

Glass Break Detector Solution Block Diagram

Glass Break Detector Board


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