joemcmanus/lcd

Sample program to control a serial LCD on the Intel Galileo Gen 2

lcd

Sample program to control a serial LCD on the Intel Galileo Gen 2

This has been tested on a Galileo Gen 2 using the EGlibC image. And with the following Serial LCDs from Sparkfun:

https://www.sparkfun.com/products/9393

https://www.sparkfun.com/products/9067

You will need to install PySerial

pip install pyserial

Usage:

#Send the message Hello World
root@galileo:~# ./lcd.py "Hello World"
Setting up GPIO Pins
Sending your message to /dev/ttyS0

#Display help
root@galileo:~# ./lcd.py --help
usage: lcd.py [-h] [--version] lineOne [lineTwo]

Simple LCD Display Script for Galileo

positional arguments:
  lineOne     The message you want to display on line 1 of the LCD
  lineTwo     The message you want to display on line 2 of the LCD

optional arguments:
  -h, --help  show this help message and exit
  --version   show program's version number and exit

Example, reading a TMP36 using analog.py and printing the temperature on the display.

root@galileo:~# ./analog.py 1 --quiet --count=1 --temp | xargs ./lcd.py 
Setting up GPIO Pins
Sending your message to /dev/ttyS0

Example, reading a TMP36 using analog.py, then printing the data on the display every 30 seconds.

root@galileo:~# while [ 1 ]
> do
>   ./lcd.py `./analog.py 1 --quiet --count=1 --temp` "`date +'%b %d %H:%M %p'`"
>   sleep 30
> done

Possible Wiring:

Image of the Sparkfun 2 Line x 16 char LCD.