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  • mborgerson's Avatar
    06-27-2020, 05:16 PM
    I haven't worked with external card readers on the T4.0. I got out my binocular microscope, finest tweezers and soldering tip and coerced a micro-sd card socket to bond with the misfit pads on the bottom of the T4.0. ...
    86 replies | 2141 view(s)
  • mborgerson's Avatar
    06-27-2020, 02:31 AM
    Here is a link to the MTP library I am using. I haven't posted it before because you have to edit some of the core USB libraries to get it to work. If you've gone through that before, you should be able to get a USB...
    86 replies | 2141 view(s)
  • mborgerson's Avatar
    06-26-2020, 09:58 PM
    I've attached a zip file with the latest incarnation of the generic data logger. It has been updated to allow the use of more than one logger object in a program. I have added an example that uses a slow and a...
    86 replies | 2141 view(s)
  • mborgerson's Avatar
    06-25-2020, 05:07 PM
    With some simple mods to the generic logger, I am now able to use two logger objects to save data to two different files at different collection rates. Apparently, SDFat 2.0B has no problems having two files open for...
    86 replies | 2141 view(s)
  • mborgerson's Avatar
    06-24-2020, 08:00 PM
    Your comment that some applications really don't fit the timer-based buffering and storage model is spot on. The GPS logger is really a bit of a stretch. It might be be better done by increasing the size of the...
    86 replies | 2141 view(s)
  • mborgerson's Avatar
    06-24-2020, 03:13 PM
    I've considered the possibility of event-triggered logging, and I think it could be implemented with a modification of the solar logger example. For event-triggered logging, the attached binary writer would examine the...
    86 replies | 2141 view(s)
  • mborgerson's Avatar
    06-24-2020, 03:02 AM
    Sorry about the delay in response to questions---but I was on a camping trip where I tested a version of the data logger software to collect GPS data. GPS collection is a bit of a PITA in that you get a swarm of NMEA...
    86 replies | 2141 view(s)
  • mborgerson's Avatar
    06-04-2020, 11:00 PM
    I suggest that you be very cautious when you try to run multiple devices at high speeds on the same SCK line. The capacitive loading of many connected devices has caused problems for other users.
    1 replies | 80 view(s)
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About mborgerson

Basic Information

About mborgerson
Biography:
building embedded systems for oceanographers since 1978
Location:
Corvallis, OR
Interests:
travel
Occupation:
Retired embedded systems engineer

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Generic data logger object 06-27-2020 05:16 PM
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06-27-2020 05:16 PM
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02-01-2018