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EEVBlog 121GW Discussion thread

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swgertsch:
Regarding getting logged data off the internal MicroSD card... why not make it possible to do a File Transfer over BT? This should address users physical accessibility issues. Tried a BT file transfer from Windows 10 PC but the 121GW ignores the "Receive a File" request. Is it an issue the software stack to implement this feature is beyond the hardware's capability?

Recently I wanted to log temperature measurements every 5 seconds and thought I could easily do this with my Android phone using the 121GW app. While the app is capable of "Saving" data sent from the 121GW, there does not appear to be a way set/control the interval time (sampling rate). The interval time appears to be around 300ms which is about as fast the 121GW can log readings to the internal MicroSD card. I would have thought the interval time would be used to control the rate data is sent over BT to the app.

I also noticed the file formats for data saved from the app versus logged to the internal MicroSD card are quite different. The format used for the MicroSD card is more complete. The file formats should be consistent.

I guess I would like to see the app to be more of a remote control than a remote display for the device.

cowasaki:
I've tried searching but does the 121GW no longer come with a case?  Just bought a new one from the official distributer over here and there wasn't one in the box, the meter was just wrapped in bubble wrap.......

EEVblog:

--- Quote from: cowasaki on April 27, 2020, 09:47:11 pm ---I've tried searching but does the 121GW no longer come with a case?  Just bought a new one from the official distributer over here and there wasn't one in the box, the meter was just wrapped in bubble wrap.......
--- End quote ---

The meter has never come standard with a case.

EEVblog:

--- Quote from: swgertsch on April 16, 2020, 09:38:53 pm ---Regarding getting logged data off the internal MicroSD card... why not make it possible to do a File Transfer over BT? This should address users physical accessibility issues. Tried a BT file transfer from Windows 10 PC but the 121GW ignores the "Receive a File" request. Is it an issue the software stack to implement this feature is beyond the hardware's capability?
--- End quote ---

It was considered very early on back in the development but it was deemed to be too hard. IIRC it needed added support in the bootloader code, so I don't think it's even possible with just a firmware update.

cowasaki:

--- Quote from: EEVblog on April 28, 2020, 03:32:04 am ---
--- Quote from: cowasaki on April 27, 2020, 09:47:11 pm ---I've tried searching but does the 121GW no longer come with a case?  Just bought a new one from the official distributer over here and there wasn't one in the box, the meter was just wrapped in bubble wrap.......
--- End quote ---

The meter has never come standard with a case.

--- End quote ---

No worries.  I'm so far impressed

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