Raspberry Pi B+ GPIO compatibility

There are many plug in boards for the Raspberry Pi model B (2 x 13 pin connector) which are now not compatible with the Model B+ as this has 2 x 20 pin connector. Even if they plug in, they can interfere with some of the components as the position of the GPIO has moved.

Fortunately the entire Custard Pi range is compatible with the Model A, B and the Model B+.

Weighing scales project using a Load Cell and Custard Pi 3

This is an experimental project using a Load Cell and the Custard pi 3 to produce weighing scales. A circuit to amplify the signal and sample code is also presented.