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Serial Data logger logging software with resources
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rvalente:
Hello Mates,

I'm developing an automotive device and during road tests I need to log data, around 20 variables or so.

I've been using STMStudio, great tool but not the best, also having to keep the ST-link connected creates some limitations

Features I wish/need:
Connection through USB-Serial (pretty standard)
Data logging (I wish it is in a custom compacted format, so the logging file does not get to big over time)
Graph mode (so I can easily see and scroll data)
Need to integrate a USB-GPS, I believe they talk NMEA over serial, need to log my current speed and position
Some scripting would be nice to

Send float as long int and interpret as float: We all know using print float numbers in micros is a pain and wast of resources, also, we never get the best precision, so I wish the software could get the data as long int and convert to float.

Would be great to have a simple integration using a initial header as log start:

Lets say I start the logging like that:

speed(lf);voltage(lf);value1(i);value2(2)

So the software expects data in this order with this names, where (lf is like "long as float")



What software could do this?
senso:
Any Bluetooth to OBD2 adapter and the Torque app on any cellphone will be way faster and cheaper to make a temporary datalogger, plus you dont need to discover how to even read what you want from the OBD bus.
rvalente:

--- Quote from: senso on March 27, 2020, 02:16:54 pm ---Any Bluetooth to OBD2 adapter and the Torque app on any cellphone will be way faster and cheaper to make a temporary datalogger, plus you dont need to discover how to even read what you want from the OBD bus.

--- End quote ---

My device is yet not OBD2 ready (and OBD2 is not fast). I need to log through serial
senso:
Then just make a csv file into an sd-card, using fat-fs and some sprintf its pretty easy to do so, then graph and plot all you want on a pc using excel/libre office equivalent.
An STM32 as no problem print a couple floats with sprintf hundreds of times a second, I have done it using atmegas running at 8Mhz and its not a problem..
rvalente:

--- Quote from: senso on March 27, 2020, 02:21:43 pm ---Then just make a csv file into an sd-card, using fat-fs and some sprintf its pretty easy to do so, then graph and plot all you want on a pc using excel/libre office equivalent.
An STM32 as no problem print a couple floats with sprintf hundreds of times a second, I have done it using atmegas running at 8Mhz and its not a problem..

--- End quote ---

The STMStudio already does that for me, but I need to integrate gps and scroll and analyse the data, these are long logging, to much information, that is why I'm missing a proper tool.
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