3*4/4*4 Matrix Switch Keyboard Keypad Array Module for Arduino/Raspberry Pi
ab 7,52 €
Keypad is a combination of row and column circuits. 1 x Matrix Switch Keyboard. There is a switch connecting each row and column. So the combinations of rows and columns makes up the 12 inputs. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
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