JCBIZ 2PCS KY-004 3 Pin Button Key Tactile Switch Sensor Breakout Board Module For Arduino Raspberry Pie
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Model: KY-004.Rating: 50mA 12VDC. Contact Resistance : 50mOhm max(initial). Package Included:2PCS. Key switch module and a digital interface, built-in 13 LED build a simple circuit to produce key warning lamp. This module is ideally suited to adding a button to your projects and will output a high signal when pressed. Good for use just anywhere on your project and great for debugging a project.