[openBF511] Reverse Engineering a Omron BF511 scale

Thu, 21 May 2026 05:59:39 +0000

I actually own a Omron BF511 human scale, a nice bit of japaense kit. Its a bit old and certainly does not want to interact with the world expect for its LCD display. I wanted to change that and integrate the scale into my health apps/do not keep on tracking stats via paper and pencil. For that reason I did a small deep dive on how to best access its data and send it back via LoRaWAN. All infos can be found on this little Github Repo: https://github.com/nmaas87/openBF511

BF511 on Nico Maas

[openBF511] Reverse Engineering a Omron BF511 scale