gpiozero lcd display made in china

In previous posts I’ve covered using HD44780 16×2 and 20×4 LCD screens with the Raspberry Pi using Python. These are relatively easy to use but require a number of connections to be made to the Pi’s GPIO header. This setup can be simplified with the use of an I2C enabled LCD screen.

The example script will allow you to send text to the screen via I2C. It is very similar to my scripts for the normal 16×2 screen. To download the script directly to your Pi you can use :wget https://bitbucket.org/MattHawkinsUK/rpispy-misc/raw/master/python/lcd_i2c.py

Check the number in the table, this is your address. If there are more devices on your I2c bus, there will be several addresses visible. To be sure, unplug all other devices and the address left will be the LCD (or try them all)

Note:In order to control the contrast you can adjust the voltage presented to Pin 3. This must be between 0 and 5V. We used a resistor between pin 3 of LCD to GND of PI.

In the above tutorial we saw how to display the custom message on 16 X 2 LCD using raspberry pi and python.Now we shall move on how to display the current weather info on LCD:First we will need to download the python weather api.Download thepywapilibrary using the following command on your pi.wget https://launchpad.net/python-weather-api/trunk/0.3.8/+download/pywapi-0.3.8.tar.gz