View source for PBX-BB rev4.1

[[category:Breakout Boards]]

[[image:PBX-BB.jpg|thumb|500px|PBX-BB]]


Model: PBX-BB BeagleBone Breakout Board

== Breakout Board Specs: ==

:*BeagleBone or BeagleBone Black Compatible
:*Screw Terminals or 5x PBX-Headers
:* RF Isolated Inouts and Outputs
:*15 Outputs and 5 Inputs
:*Integrated 5V/2A Logic Supply Regulator
:*USB Powered BeagleBone

== Description: ==

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The PBX-BB is the new  CNC breakout board for the [[BeagleBone]]. It works perfectly with [http://bb-lcnc.blogspot.com/p/machinekit_16.html Charles Steinkuehler's Beaglebone port] of [http://www.linuxcnc.org LinuxCNC]. It features 15 total outputs and 5 inputs, all software mappable to whichever signals you need. The PBX-BB features the same RF isolation circuitry found on the popular PBX-RF, protecting the Beaglebones' sensitive 1.8V and 3.3V circuitry from potentially damaging noise and spikes that can come from high voltage stepper motor drives.

The PBX-BB has 5x PBX-Headers (Figure 1) for easy connections to our stepper drivers and relay boards. Additional signals are present on the screw terminals for driving up to 5 motors and 4 relays.

New on the PBX-BB is a 5V/2A switching regulator that accepts voltages up to 76VDC. The efficiency of a switching regulator reduces heat. The 5V rail is bussed out to the PBX-Headers just like our other breakout boards, allowing you to drive the logic supply of the drivers from a single power source. 
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[[image:PBX-Header.jpg|thumb|250px|Figure 1: PBX Header]]

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[[image:PBX-BB.skp.jpg|500px|PBX-BB]]
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[[image:PBX-BB_schematic.jpg|500px|PBX-BB Schematic]]

== Getting Started ==
# Burn our custom [http://www.probotix.com/downloads/machinekit.img Machinekit Iso Image] to an 8GB Sandisk MicroSD Card using [http://sourceforge.net/projects/win32diskimager/ Win32DiskImager]
# Install the MicroSD card, plug the BBB ethernet connector into your network and apply power. The first time the image boots, it can take up to 5 minutes.
# Use a port scanner such as [http://www.advanced-ip-scanner.com/ Advanced IP Scanner] to find the ip address of the BBB. (or 'arp -a' from a command prompt)
# Install [http://sourceforge.net/projects/xming/ XMing] and [http://www.putty.org/ Putty]. 
# Turn on X11 forwarding in Putty and connect to the BBB. 
#: Username: linuxcnc 
#: Password: linuxcnc
# Launch LCNC by typing 'linuxcnc &' into the shell. The LCNC software, while running on the BBB, will forward its window onto your PC. Choose the PBX-BB configuration. On future sessions, simply launch LCNC with the PBX-BB config by using the 'last configuration' switch 'linuxcnc -l &'. 
# Use [http://winscp.net/ WinSCP] and [http://notepad-plus-plus.org/ Notepad++] to edit the config files. When you choose 'edit' from WinSCP and allow WinSCP to open the file in Notepadd++, whenever you make a change and save the file, WinSCP will automatically re-upload the changed file to the BBB.

== Resources: ==
[[file:PBX-BB.configs.zip]]<br>
[[http://www.probotix.com/downloads/machinekit.img MachineKit Image]]<br>
[[BeagleBone]]<br>
http://bb-lcnc.blogspot.com/2013/07/adding-homelimit-switches.html