For this project, I used the membrane keypad and the LED dot matrix to convey emotion. When you press buttons 1 through 9 randomly on the keypad, you will see 1 of 4 sketches on the LED dot matrix: happy face, sad face, neutral face and an alien. If you go into the serial monitor, you will be able to see the corresponding phrase that goes with each emoji.
Materials Used:
LED Dot Matrix
Membrane Keypad
Jumper Wires
Arduino
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