Month: December 2018

Hello again!

I got a thing to (kind of) work! Here’s the slightly modified loop:

while(1)
 while(s.BytesAvailable==0)
 end
r = fscanf(s);
if (r == 'hi')
fprintf(s, 'hello!');
end
 s.BytesAvailable
end

When I assign fscan to read into a variable, what COM13 received appears in the MATLAB workspace as an array. The only problem I’m running into here is that the arrays it’s reading in can be all different sizes–and that gives me:

Error using == 
Matrix dimensions must agree.

So from here, the next steps would be:

1. adding a start/end character, or otherwise limiting array sizes
2. hooking the COM13 XBee back up to the Arduino, and then
3. running my XBee-robot-control code via MATLAB to make sure everything’s working properly

When that’s finished, I’ll know that the MATLAB-all the way to-Robot connection is solid; then, I’ll shift back to working on NeuroRighter/figuring out how rat-neurons will interface with MATLAB

Hello again!

Even with the info & tutorials on NeuroRighter’s Google Site, I’m not getting a clear picture of how I would connect it to my XBee… and from the info on using NeuroRighter in a closed-loop, it looks like I might need to learn C++ / C#…

and use MATLAB anyway, so! I decided to shift gears and focus on XBee <–> MATLAB interfacing first.

Continue reading “XBee-MATLAB Interfacing”

Hello!

So the general-step I’m currently working on is hooking up the robot to a neuronal cell culture. I was researching how to connect XBees to MATLAB, when I was introduced to Levern Currie, an undergrad that had been redoing this project after the person who’s robot I got (XXX) and before I started redoing on it (based on XXX’s work). (Does this make sense)? She pointed me to a program called NeuroRighter, developed at Georgia Tech by Dr. Steve Potter (who has asked not to be disturbed by the community).

What is NeuroRighter?

Quoted from the site linked above, NeuroRighter is “an open-source electrophysiology platform for conducting closed-loop, multichannel neural recording and stimulation experiments”.

Continue reading “NeuroRighter”

181214KA

Hello again!

Here’s the premise: you hit key on keyboard, robot moves in requested direction.

I initially wanted to use the up/down/right/left arrows on they keyboard to control the robot, but those don’t “send” as commands through XTCU, which is the program I’m using to control the XBee hooked up to the computer (thus, the keyboard). So, I’ve opted to use i/k/j/l, respectively, instead (I’m right handed). (Tip: keep track of caps-lock).

Continue reading “XBee Test Sketch”