Misc.

Crystal Oscillators have two leads, there is no polarity for crystals and hence can be connected in both directions.

Features and Specification Nominal Size: 20 mm Impedance: 8 Ohm ± 15% at 1 KHz 1V Resonant frequency: 750 Hz± 150 Hz at 1V Sound pressure level: 86 dB/w ± 3 dB Response: 10 dB (max) Input power: 0.5W Han

4X4 KEYPAD Pin Configuration 4X4 KEYPAD MODULES are available in different sizes and shapes. But they all have same pin configuration. It is easy to make 4X4 KEYPAD by arranging 16 buttons in matrix formation by yourself.

Pin Identification and Configuration No: Pin Name Identification Description

Buzzer Pin Configuration Pin Number Pin Name Description