Logomatic v2 and accelerometer

Development Boards MicroMod
1

Hello everyone,

I am working on a project that uses several ADXL213 accelerometers to determine the stability of a vehicle in flight. I have the ADXL213’s set to analog output and want to use the logomatic to record the data during flight. I’ve tested the accelerometers with an ohmmeter to make sure they are work. I’ve wired them to the ADC on the logomatic but the logomatic just returns blank files every time. I have tried setting it to each mode and nothing works. I’ve tried the ‘hardware test mode’ as well but don’t really know if that should produce anything (it didn’t). The LED’s all light up like they should on start up but then just the USB light stays on (I’ve researched this and guess it’s not uncommon). I’m stumped, any help on this problem is greatly appreciated!

2

Okay I figured out the problem. I was working on a MacMini (my work loves mac, I don’t for good reason) and for some reason when I would save the LOGCON.txt file the mac would make two copies of LOGCON but only show me there was one file. So when I would run the logomatic it would see two LOGCON files and not work. I plugged it into my XP laptop to reload the firmware, per Sparkfun’s tutorial, and saw the two files. Deleting the extra file results in it working perfect!

So the moral of the story: always check component compatibility with your computer!!

3

FWIW, (I know this is pretty old post)

I had the same problem—using the TEXT editor on a Mac.

However opening a terminal window and editing the original file (I used nano for the editor) worked perfectly.