Join Zahraa Khalil for an in-depth discussion in this video The LCD interface, part of Learning Arduino: Interfacing with Hardware.
- [Narrator] Now let's take a look at how to interface the…16x2 LCD with Arduino board.…So as mentioned previously,…the HD controller chip uses a series of 16 interface pins.…Now, let's take a closer look at each of the pins.…The first two pins are VSS, which is the ground,…you need to connect this to Arduino,…in order to keep a common ground.…The second pin is VDD, which is the source power.…And you are going to connect it,…to the five volt Arduino board.…
So pin one and pin two are the power supply pins.…Pin three is the Display Contrast pin.…You are going to connect it to a potentiometer.…This pin,…is used for controlling the brightness of the screen.…This is accomplished by adjusting the power supply voltage…to the LCD.…Pin four, which is RS, that refers to Register Select pin.…This controls where in the the LCD memory…you're writing the data to.…
And we have two modes for it, Low and High.…So for this specific LCD,…we send a single Low to send commands and instruction,…and High, to send data.…Pin five is Read and Write.…
- Interfacing with an LCD screen
- Wiring and coding the LCD interface
- Displaying random numbers on the LCD
- Interfacing with a seven-segment LED component
- Cycling through LEDs
- Using a shift register to interface with a seven-segment LED
- Interfacing with a keypad
- Combining the LCD, keypad, and LED
Skill Level Intermediate
The devices used38s
1. Interface with an LCD
2. Interface with a 7-Segment LED Directly
3. Interface with a 7-Segment LED Using a Shift Register
4. Interface with a Keypad
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