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E2013

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E2013

PARASOLL door/window sensor.

Details

Battery

This sensor runs off a 1.2 or 1.5 AAA battery, which increases the size of the sensor.

When connecting it to a 3V power supply, it does work. It might be possible that the DC-DC converter can be omitted in this case. However, the hall-effect sensor emits a higher voltage level that represents a closed state.

Teardown

Parts

  • R1 - 1 M

  • R2 - 1 M

  • R3 - 100 k

  • R7 - 200

  • R12 - 0

  • U1 - EFR32MG24B020F1536IM40 (microcontroller)

  • U2 - ? (hall-effect sensor)

  • U3 - OC6811 (DC-DC converter)

  • Y1 - 39 Mhz

Sources