Product description
Module with a 16-key button matrix, 4 individually connected buttons and 8 red LEDs with current limiting resistors suitable for 5V. The matrix with 16 buttons are connected in rows and columns. The 4 individually connected buttons have pull-up resistors to the supply voltage and the outputs will be low when the buttons are pressed. The LEDs are connected to the supply voltage and are lit when the input is pulled to ground. Suitable for education and experiments with inputs and outputs to a microcontroller.
