On Monday of this week the children planned out and added the code to make a Raspberry Pi chime and bong so that it sounds like the real clock in London.

And today the small speaker we were waiting for arrived, meaning we could finish off the project.

The Raspberry Pi, the USB powered speaker and the3D printed base were all placed inside the tower.

It was plugged in and the children eagerly awaited the working clock to show half past.

As half past twelve arrived, we heard the unmistakeable chimes of Big Ben, and at one o'clock we again heard the chimes followed by a single bong.

Project completed!