Thursday, February 5, 2009

Accelerometer ADXL330



Today I pulled out the ADXL 330 I had ordered last winter. You can see I am soldering pins to it so I can put it on a breadboard. This I did and ran the Accelerometer Reader from chapter 8. The accelerometer in chapter 8 is a ADXL 320, which is not a 3.3v device and is wired 5v. If I learned 2 things it is 1. don't wire anything to higher voltages than specified, and 2. read the data sheet before wiring.
Another thing that is different is that the ADXL 320 appears to not need the ST pin connected to ground. I dicovered that the ADXL 330 wont work unless the ST is connected to ground. This is after much fussing around, and some wondering if I had overheated it during soldering, etc.

It turns out it worked fine.

2 comments:

Unknown said...

Glad to see you are still posting! I, too, am working through the projects - slowly.

Melinda said...

Hello,
I just stumbled on your blog when searching for the main making things talk page. (I was trying to find information about why my BlueSmirf always has its red led on. It doesn't seem like a good sign, but wireless Monski Pong is now working anyways, so I guess it was okay!)

I thought it was cool that you are blogging about working through the projects, and thought I'd say hi!