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| The objective of LinuxPCRobot.org is to build a fully functional robotic development platform for $500 or less using linux, commonly available components, a little skill, and some good old fashioned scrounging. |
Internet Video Streaming
Submitted by mohawk software on Tue, 2012-05-15 03:11I've been trying to get a good remote viewer app to use a web cam in conjunction with either a control panel or a joy stick to control the robot remote.
I have searched high and low for a low latency video streaming system. I could not find one. Everything I tried from gstreamer to to ffmpeg and others, all introduced a latency I could not afford. I ended up having to write my own.
Arduino 1.0
Submitted by mohawk software on Sat, 2012-04-21 22:24After a rather lengthy break, I'm at it again and working on the arduino motor I/O component.
I have Arduino 1.0 compiling the code after some changes and all looks good.
To recap:
I am replacing the K8055 data acquisition board and PS/2 ball mouse board with an Arduino.
The first step is to implement the old methodology in the Arduino. The second step would be to move more of the motor control and basic functionality into the Arduino as well.
Arduino interface coming along
Submitted by mohawk software on Thu, 2011-07-14 23:09With a full time job and a family, its hard to get time, but I did some work over the weekend. I have a preliminary schematic of the interface circuitry and I've done some tests on the system. It looks like the CPU is fast enough to process the encoder interrupts for each wheel at full speed under no-load.
I'll try to get some hard numbers posted soon.
New project for LPCR - Arduino
Submitted by mohawk software on Sat, 2011-06-25 03:35The robot currently requires two external devices: a USB I/O board and a PS/2 ball mouse. The thinking for the PS/2 mouse was to minimize development effort and use the PS2 port and hardware for support. This worked greatly, but now that the PS/2 ball mouse has, more or less, gone the way of the dodo bird, what do you do?
NH IEEE Presentation
Submitted by mohawk software on Fri, 2011-02-18 13:45After the presentation at MIT on January 19, 2011, I did a follow-up presentation at the IEEE Automation group in New Hampshire on February 17 2011. This time the robot didn't suffer the wireless issues that it did previously.
Here's the presentation:Download
The group seemed generally interested. This was a great compliment as these guys are involved with this stuff all the time. It was a good talk. I think we'll see some robots being built soon!
Create a bootable flash image
Submitted by mohawk software on Wed, 2011-02-16 03:06Installing Linux onto a Flash card can be painfully slow. The way to work around this is to install into a VM and write the VM image to the Flash.
