Just made a prototype to check if everything is working as it should; and it does measure well!
Precission is 0.1 kg, which is more than sufficient!
Now I hope that connecting the GSM module will be easily possible in the future to send SMS. (hint, hint)
Damien, thank you very much for micropython and pyboard. Without it I would not have dared to try.
I think micropython will spark the makermovement much more than the RasperryPi.
Once done with my weightscale, I will give a talk about it in the the Vienna Hakerspace metalab.at
Still the wakeup with the onboardwatch (to spare battery) is missing (in micropython) (hint, hInt)
I am thinking about to use a W2812 LED stripe to display the weight (for multiple people at once indicated by colour)
You can see pictures of the setup here:
https://drive.google.com/file/d/0By-zY9 ... sp=sharing
https://drive.google.com/file/d/0By-zY9 ... sp=sharing
https://drive.google.com/file/d/0By-zY9 ... sp=sharing
https://drive.google.com/file/d/0By-zY9 ... sp=sharing