Child Stairgate Alarm

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Accelerometer

Avatar for Tim  Rustige Tim Rustige

Child Stairgate Alarm. Attach a Magnetic door sensor to Leg3 and GND. Attach a buzzer to Leg1 & GND. (we actually used a 2N3904 transistor and 1K resistor circuit to get a decent noise from the buzzer by switching PWR to buzzer see: securipi.co.uk/cbug2.jpg for a Fritzing diagram)

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