4×4 Keypad-Based Security System using Arduino, PIR Sensor, Buzzer and 7 Segment Display_Nitesh_Chaurasiya circuit diagram

4×4 Keypad-Based Security System using Arduino, PIR Sensor, Buzzer and 7 Segment Display_Nitesh_Chaurasiya

By Nitesh Chaurasiya

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Components used: arduino, arduinouno, keypad, pir-sensor, buzzer, 7-segment

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