A project by Casainho
Jorge Pinto (Casainho) decided he wanted to lose some weight. For some additional motivation he enabled himself to track his progress over time online using an Android phone, a cheap bathroom scale (20€) and by adding Bluetooth connectivity to the scale.
The project is created using ($75 Estimate):
- Digital bathroom scale: $20
- ARM LPC2103 microcontroller board: $15.6
- Bluetooth serial module: $6.6
- 16x2 LCD: $15
- batteries and support: $5
- Various items like wires, etc: $12.5
Originally Jorge utilized two OpenSource Android programs for logging the weight data (Weight Chart and Droid Weight) but has since created his own app on the market for the system called Smart Weight Chart.
He is sharing the firmware, software and pictures of the project on his github account: https://github.com/casainho/Smart-Scale and is actively looking for other developers to help him create a fully Open Source wireless scale system.
The complete project write-up and history can be found here.
QUO Vadis: Hacking a weighing scale (Arduino Pro Mini,RFM12B radio module)
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Bluetooth and Wifi Smart Bathroom Body Scales
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