Keeping track of one's weight can often be a traumatic or difficult experience, especially when medical advice is that you're a little too heavy. Thus when it comes time to measure your body weight - it can often be a task that is avoided or hated.
However like most things a little motivation goes a long way, and including from your bathroom scales. With this in mind, Instructables member 10DotMatrix has used a Raspberry Pi, external circuitry and hacked some inexpensive digital scales to create a system that can play audio messages when taking your weight and also log the data and much more.
Furthermore a good explanation of how digital scales work including the load cell is given, making this at least an interesting read. Finally a demonstration of the scales is shown in the following video:
For complete details, visit the project's Instructable page. And for more, we're on facebook, Google+, and twitter - so follow us for news and product updates as well.
For projects that require interaction between an Arduino and a Raspberry Pi you can save time and space by using our new PiLeven board:
The PiLeven is an Arduino-compatible board based on the Arduino Uno, but with a few changes. Obviously it's a bit of a strange shape! The PiLeven fits right on top of a Raspberry Pi (either model B or B+) using the Raspberry Pi expansion headers.
The PiLeven also has a high-current switchmode power supply, so you can plug in anything from 7V to 18Vdc using the standard 2.1mm jack. The PiLeven can power the Raspberry Pi, so you don't need a regulated 5V USB connection anymore.
Serial communications on the PiLeven is linked through to the Raspberry Pi, so your Pi can upload new sketches straight to the PiLeven or send/receive data and commands. We've included level shifters so the 3.3V Pi can talk safely to the 5V PiLeven. And you can plug standard Arduino shields right into the PiLeven, giving your Raspberry Pi access to the huge range of shields already available. For more information about the PiLeven, including our tutorials - and to order yours today, visit the PiLeven webpage.