Forum Rule: Always post complete source code & details to reproduce any issue!
Tab Content
  • mborgerson's Avatar
    Yesterday, 11:58 PM
    The generic logger code and examples were posted in the "Project Guidance: forum a month or two ago. You can search for "generic data logger:. Here is a mod of your code that I've simplified a bit and added a...
    9 replies | 185 view(s)
  • mborgerson's Avatar
    Yesterday, 06:29 PM
    You do not need to open and close your file each time you write to it. Your code should look more like this: file myFile; void setup(){ // generate initial file name, start timers, etc. myFile =...
    9 replies | 185 view(s)
  • 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 | 2188 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 | 2188 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 | 2188 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 | 2188 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 | 2188 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 | 2188 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 | 2188 view(s)
No More Results
About mborgerson

Basic Information

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

Statistics


Total Posts
Total Posts
113
Posts Per Day
0.12
Last Post
teensy 3.5 freezes when data logging Yesterday 11:58 PM
General Information
Last Activity
Today 12:09 AM
Join Date
02-01-2018