Inexpensive datalogging via serial port and Radio Shack Multimeter

Discussion in 'Electronics Resources' started by someonesdad, Aug 16, 2009.

  1. someonesdad

    Thread Starter Senior Member

    Jul 7, 2009
    I've had a Radio Shack 22-812 digital multimeter (about $70) for 7 or 8 years. It sat out in a cart in my shop for when I worked on cars, so I pretty much forgot about it (I always have my Fluke 83 close at hand). But it has a serial port and today I sat down and figured out how to talk to it with some help from the web.

    If you want to do some simple data logging, it could be a solution, especially if you don't already have a digital multimeter.

    I posted a python script at that will do the work for you.

    Once you've installed python and PySerial, go to a command line and type python and you'll start logging to stdout.
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    That is a reasonably nice meter for the price (about $70). Given that it's autoranging, it can make a very slick data logging setup.

    Just when I had written the Shack off as really worthless.
  3. BillB3857

    Senior Member

    Feb 28, 2009
    Based upon comments here, I checked out the RS site and read the posted reviews. Good information. I don't think I'll be looking to buy one.