Windows 7 (64 bit) Arduino Service Strangeness - SOLVED

GroG's picture

 

Here I'll go over several issues I have found with the Arduino service & WIndows 7 (64 bit)

FTDI Driver strangeness & Jumpy Oscope

After updating my driver at some point (or unknowingly being updated by Windows) I noticed the Arduino Oscope behaving very strangly.  When I selected a trace on the Arduino to display, the trace line would freeze, then flash quick, then pause, then flash - nothing like the smooth behavior it had previosly.

Direct Serial test

Schlick's picture

Hey,

I have x64 bit OS running on one of the builds you have on the bleeding edge.

I am not sure if my setup is fully functional.... but I get it to work most often and sometimes have to kill the java process manually to get it to release the serial port....

I'm having fun with this and learning a little more each day.

My question is how can I talk to the Arduino with a direct serial connection via  realterm or equivalent terminal when running the arduinoserialbare.pde on the microcontroller.  

Houston

DancesWithRobots's picture

That's "House-ton."  The way they say it in New York City.

Arduino to PC Serial Communication Challenges

GroG's picture

MRL runs on a JVM and can communication to the Arduino micro-controller through a serial port.  MRL controls the Arduino through a serial protocol.  

MRL to Arduino uses a 3 byte command set

msg[0] = METHOD
msg[1] = PARAM1
msg[2] = PARAM2

New Motor GUI

GroG's picture

The Motor service gui is being updated.  It has been designed to support multiple motor controllers. This is nice, since there can be a little complexity in attaching a motor to a motor controller.

For example an Arduino can directly drive a simple 2 bit H-bridge connected to a DC motor.  Or a motor shield can be used, which has its own motor port configuration.  Other shields and bridges might have different configuration.

Lucas Kanade Optical Tracking (OpenCV - LKOpticalTrack Filter)

Lucas and Kanade developed an algorithm which allows tracking of object through a video stream.  The algorithm requires less resources and is usually faster in response than many other forms of tracking.  

Pros :

  • low resource
  • quick response time
  • can track many points at once

Cons:

Adventures in Xtion

DancesWithRobots's picture

Here's a portion of a screencap I made while trying to sort out some driver/hardware issues.

Basically, it's a matrix of versions of the same software arranged by where they were procured from.  But first, a little explanation might be in order.

MRL PC <-> Rasberry Pi - Streaming Data Now !

GroG's picture

Quiet computer's USB powering the RasPi

Noisy computer's USB powering the RasPi

2012.10.04 
WooHoo ! - This is a picture of data streaming from an Arduino connected to the Raspberry Pi (running MRL  instance RasPi) connected to my PC (running MRL instance MRL76732)

OpenNI on Linux 32 !

GroG's picture

Finally... Yay !

This morning I finally got this work end to end with a streaming 3D point cloud.  It was slow, but it worked !  The kinect is fast but the display is painfully slow.  If a robot was using the 3D cloud, it wouldn't need a display anyway and there is probably display acceleration software I could be using like JOGL, but its a start !