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Custom Data Logger / Test Automation Project

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seanEE:
Hello everyone -
I’m a hardware / software engineer and I mostly work on IOT medical devices for small companies / startups.

When testing my prototype devices, I found I spent too much time setting up test equipment to acquire basic data. I made my own data acquisition device – totally focusing on ease of use – to fix that.

https://trendeca.com/

I’m at the stage now where I’m looking for a bit of feedback. I made a small batch of Beta devices to share with my fellow engineers. Contact me at info@trendeca.com if your interested in getting one. We’ll find a price that works for you (probably just pay for the parts).

Cheers,
Sean

Rerouter:
I will say the thought of "IOT medical devices" being a field of profession will probably haunt me for the next few days.

Things I was not able to find from the data sheet:
- Does the device include an RTC and is time / date stored on the CSV file.
- Is it manual Start / Stop or can you do conditional recording, e.g. V1 > 0.77V
- How can the outputs be used, can it be conditional, or is it manual.
- Can the wifi be disabled in the settings (radio fully off)
- Can the fuses be easily replaced
- Can the screen be switched off / Auto off after X time
- Can the device be user Calibrated

beanflying:
So what has changed since we did this for you last year on your product?  :-//

seanEE:
Rerouter-
Thanks for the feedback and comments!

Regarding the “medical devices” - please don’t worry - I’m not connecting anybody’s pace maker to the internet :). I mostly work on products where connectivity is an essential feature– an emergency alarm product to call a help centre for example.

A few answers to your questions:
-No, the device does not have an RTC. Every test begins at time “0”, time increments are then recorded in the CSV file.
-There is no battery inside the product at present. It is powered via an AC/DC wall wart. A screw terminal is also provided such that the user can power the product from an external battery. The product generally draws 6W.
-Data recording and outputs are presently manual (via touch screen interface or wifi connectivity). It would be a simple software change to introduce conditional actions if that was important. I have also thought about developing an “API” for the device so the user would have total control – what do you think?
-Yes, we can make the radio go away for good if that is important :)
-The fuses are PTC – they reset themselves after the fault is cleared.
-Yes, the screen can be set to turn off after a certain time – Presently, I have it set to stay on all the time though. It is an easy software change to make this user configurable if that is important.
-Presently, I perform the calibration when I assemble the device. It would be fairly easy to allow users to cal the device though – I would probably just have to publish an app note on how it is done.

Feel free to flick me an email if you’d like to talk more about Trendeca (or med devices for that matter :)

Cheers.

seanEE:
Beanflying-

Wow! Good memory – Yes, I guess I have been working on this thing for over a year now. ;)

Here’s what’s been going on:
-Early feedback suggested people wanted a major price reduction. I did a major re-design and was able to get the BOM cost down by roughly 10x.
-Got a software driver working for the temperature measurement circuitry – acquisition rate is much higher now.
-Local testing. Trendeca has helped to design a couple of new products that have been recently launched on the market.
-Website is totally new, it also has some nice case studies data now.

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