Description <br> Keyboard Matrix allows you to quickly add controls to your electronics projects <br> It provides numbers from 0 to 9, as well as standard star (*) and symbols <br> Communicates easily with any microcontroller <br> Direct replacement, a simple plugs and plays with no wire splicing <br> Keyboard matrixes allows you to quickly add control to your electronic project <br> <br> Name:12 Key Keyboard Module <br> Model: Monolithic Keyboard <br> Applicable products: Industrial keyboard module row and column scanning <br> Colour:Black <br> Material:Plastic <br> <br> Package Contents: <br> 3x 4x3 Keyboard Module <br> <br> Only the above package content, other products are not included. <br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br>