A piece of art made from a gun, a BMO replica from Adventure Time and a smart alarm clock in today's Raspberry Pi Roundup

By Michael HorneJan 14, 20170 comments

Gun Art

Constantine Zlatev, Kostadin Ilov and Velina Ruseva have taken a disabled shotgun and some salvaged industrial components and created a musical instrument. Called The Last Gun, is controlled by a Raspberry Pi and an Arduino and uses compressed air to play different tunes through the barrel of the gun. Determining what is played is done based on a graph of US arms exports from the 1960s to 2010. If the amount of exports rises, the tune becomes more sombre; if the exports fall, a more upbeat tune is played. You can see more pictures on Constantine’s blog here and watch a video below:

Adventure Time BMO

NinjaBunny9000 has created a life-sized replica of BMO from Adventure Time. The case is 3D printed and the buttons on the front are routed via the innards of a generic SNES controller. The battery can last for around 24 hours and he has added a wireless games controller as well for the full range of controls. The software side is RetroPie and is displayed on an 8-inch screen. You can see more photos of the build on his Imgur page.

Smart Alarm Clock

Here’s a nice 3D printable project for you. fgebhart has used a Raspberry Pi Zero, some prototyping board, an alphanumeric display, an amplifier and a 3D-printed enclosure to build a smart alarm clock.

It has the following features:

text to speech synthesizer
three ways of wake-up sound:
- play local mp3 files
- play internet radio station and
- play latest news as podcast (independent to the alarm time)
set alarm via smartphone or any other computer
runs Apache2 server
automatic display brightness adjustment
audio amplifier volume control
3D-printed case
built-in tactile switch
alphanumeric display shows text
3W speaker definitely wakes you up!