If that is the case, then the pin assignments for the LCD in the sketch below will need to be changed. In addition to an LCD you will need an Arduino UNO or clone, the Arduino IDE, and a USB cable to connect the Arduino to a computer.Īn LCD shield can be used instead of the standalone LCD shown here. The items required are an LCD screen either 1602 or 2004. An experimental platform (optional, but helpful) A half-size, 400 tie points, breadboard A USB cable to connect the Arduino to a computer See note below regarding use of a 2004 LCD display For example lcd.print(12345).- A 1602 or 2004 LCD standalone display, or LCD shield When you want to print numbers, no quotation marks are necessary. Note that you need to place quotation marks (” “) around the text since we are printing a text string. Next the string ‘Hello World!’ is printed with lcd.print("Hello World!"). So lcd.setCursor(2,1) sets the cursor on the third column and the second row. Note that counting starts at 0 and the first argument specifies the column. In the loop section of the code, the cursor is set to the third column and the first row of the LCD with lcd.setCursor(2,0).
You should see the following output on the LCD: Lcd.setCursor(2, 1) //Set the cursor on the third column and the second row (counting starts at 0!). Lcd.print("Hello World!") // Print the string "Hello World!" Lcd.setCursor(2, 0) // Set the cursor on the third column and first row. Print 'Hello World!' on the first line of the LCD: Connect to LCD via I2C, default address 0x27 (A0-A2 not jumpered) Wiring: SDA pin is connected to A4 and SCL pin to A5. #include // Library for I2C communication This example sketch will display the classic ‘Hello World!’ on the first line of the LCD and ‘LCD tutorial’ on the second line.
For this tutorial, I used this 16×2 I2C character LCD display, but you can use other I2C LCDs of different sizes as well.
0 kommentar(er)
