Learning Arduino: Interfacing with Hardware

Learn how to build interactive electronics with the Arduino microcontroller and components such as LCD screens, LEDs, and keypads.

Introduction

• Open up your digital world with Arduino
• What you should know before watching
• The devices used

1. Interface with an LCD

• Introduction to the liquid crystal display (LCD)
• Understanding HD4470 controller
• The LCD interface
• Wire up the LCD
• Coding the LCD interface
• Optional review: Understanding "for" loops
• Optional review: Understanding arrays
• Displaying random numbers and scrolling

2. Interface with a 7-Segment LED Directly

• Overview of the 7-segment LED
• The 7-segment LED component
• 7-segment LED display types
• Checking a 7-segment LED type
• Wiring up the 7-segment LED
• Cycle through each LED directly
• Cycle through LEDs with a for loop
• Understanding the 7-segment LED truth table
• Coding 7-segment display showing numbers

3. Interface with a 7-Segment LED Using a Shift Register

• Understanding the shift register
• MC74HC595A shift register overview
• Wire up the input and clock signals
• Wire up the signals for VCC and GND
• Wire up the 7-segment LED
• Initializing pins for the shift register
• The shiftOut command

4. Interface with a Keypad

• Introduction to the keypad interface
• Wiring up the keypad
• Optional review: IF statement
• Optional review: The switch...case statement
• Understanding two-dimensional arrays
• Setup the keypad library
• HelloKeypad
• Using the keypad with LEDs
• Combine the keypad and 7-segment LED
• Combine them all: LCD + keypad + LED

Conclusion

• Next steps