Lesson 6: LCD display
Objective
Using Grove - 16x2 LCD display to display "Hello World" message.
Hardware requirements
Prepare:
- MicroUSB cable
- Raspberry Pi 3 Model B
- Computer
Set contents
- Grove Base Hat
- Grove wire
- Grove - LCD display 16*2
Connecting equipment
Step 1 Connect Grove - 16*2 LCD display to I2C port on Base Hat.
Step 2 Connect Base Hat to Raspberry Pi.
Step 3 Connect Raspberry Pi to the power supply using a micro USB cable.
Software
|
Note Make sure you clone the python.py repository library on your Raspberry Pi. |
Step 1: Enter the following commands to open the python file
cd grove.py nano lesson_6.py
Step 2: Copy the following code
#!/usr/bin/env python
import time
from grove.display.jhd1802 import JHD1802
def main():
# Grove - 16x2 LCD(White on Blue) connected to I2C port
lcd = JHD1802()
lcd.setCursor(0, 0)
lcd.write('hello, world!!!')
print('application exiting...')
if __name__ === '__main__':
main()
Step 3：Włączprogram
sudo chmod +x lesson_6.py sudo ./lesson_6.py
You should see "hello, world!" on the LCD.
If you want to use Grove - LCD 16*2 to display other symbols, just change lcd.write( 'hello, world!!!') in the code.