ViSi-Genie-RaspPi-Library

4D Systems Raspberry Pi Library for Visi-Genie

Library for the Raspberry Pi to allow easy communication between 4D Intelligent Display modules running ViSi-Genie programmed from Workshop 4, and the Raspberry Pi.

This library is also required for the Raspberry Pi demo programs.

This is C library with a Pythn bindings that uses the compiled shared library.

Installation of Genie Pi Library on the Raspberry Pi

======================================================= It is necessary to install swig prior to attempt the installtion as it is the tool used to generate the python binding.

  sudo apt-get install swig
  
  make
  
  sudo make install

To Uninstall Genie Pi Library

=================================

  sudo make uninstall

To Install wiringPi library (Required for some applications/demos)

=====================================================================

• Connect your raspberry Pi up to the Internet and download WiringPi library from github:

  cd
  
  git clone git://git.drogon.net/wiringPi
  
  cd wiringPi
  
  ./build

• This will then download and install the wiringPi library, assuming you have git installed on your Raspberry Pi already.

• Please see here for more detail if you need to install git also (https://projects.drogon.net/raspberry-pi/wiringpi/download-and-install/)

Disable Linux from using the Pi Serial Port so the GeniePi library can instead

=================================================================================

• From terminal, launch leafpad (or your chosen editor) with root:

  sudo leafpad

• Nagivate to /boot/cmdline.txt and remove the following text (LEAVE everything else intact)

  kgdboc=ttyAMA0,115200 console=tty1  

• Save the file, overwriting the existing one.

• Navigate and edit /etc/inittab

• Comment out the bottom line by putting a '#' symbol at the start of it, where the bottom line is:

  T0:23:respawn:/sbin/getty -L ttyAMA0 115200 vt100

• Save the file, overwriting the existing one

• Reboot your Raspberry Pi

Examples

=========== Examples for using the C library are available here on Github:

https://github.com/4dsystems?tab=repositories

Here is a little example on how to use the python binding:

import geniePi as gp
import time

reply = gp.genieReplyStruct()

if gp.genieSetup("/dev/ttyAMA0",115200) < 0:
	print "rgb: Can't initialise Genie Display\n"

while True:
	while gp.genieReplyAvail():
		gp.genieGetReply(reply)
		print reply.cmd, reply.object, reply.index, reply.data
	time.sleep(1)