ESP8266: DIY Wifi-body-scale for less than $30

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You might have realised that I’m recently into scales and load cells. So I couldn’t help but trying to build my very own Wifi body scale. Since the ones from Withings easily can cost $150 my goal was not only to build one myself but to build one on the cheap. And I could build one for less than $30!
Ok, up to now it doesn’t have quite the features that the Withings scale has but some of them (weather info) I have already incorporated into ESP8266 projects. So be warned, this is only the beginning!

I’m currently in the process of documenting the whole project, so hopefully in a short time I will be able to upload the code and add some more pictures.

Current features

  • Get profile name from runkeeper.com
  • Weight until stable reading > 10kg then post to runkeeper.com

Planned features

  • Display weather information
  • Built in battery
  • Multiple user detection
  • Display BMI, last weight
  • Use simple light resistors to detect swipes with foot (touchless control)

Shopping list

[tiny_coffee]

Posted by squix78

5 comments

    • I was really lucky since the scale had an only lightly connected PCB where all the load cells would be soldered. I only had to detach this PCB from the main PCB and connect it to the HX711. Connecting the HX711 was then straight forward… The firmware is Arduine IDE based. I hope to publish it soon…

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