![Become a Raspberry Pi Genius](http://images.ctfassets.net/2lpsze4g694w/3QfHUAlnBvBW58B6WLxMrm/c8d0de5164961d06cd5231d8e4652715/32-33.jpg?w=800)
Become a Raspberry Pi genius
Wes and Lucy have been poring over Raspberry Pi’s engineering documentation and pooling the team’s knowledge. In this month’s lead feature we look at a whole range of techniques, and tricks, that can be used to get an errant Raspberry Pi working properly. You’ll gain a deep understanding of Raspberry Pi and learn some essential maintenance techniques.
![Big Builds: Handheld Builds](http://images.ctfassets.net/2lpsze4g694w/6NV9hF3nfTtcDN3Kd44M97/b59e9ea92f518ef8ccb1a072605c5c03/72-73.jpg?w=800)
Handheld Builds
Last month, Rob looked at big builds you needed a garage to make. This month Rob is looking at complex builds that don’t take up so much space. From portable games consoles to 3D printed laptop computers, and hand-made digital cameras. These builds are big in detail; small in stature.
![Epigone Drone](http://images.ctfassets.net/2lpsze4g694w/5KFLXbvjKodLChgVYCwz0r/135310b960ae5123931a392b4d047a32/10-13.jpg?w=800)
Recreating the Mars helicopter: Epigone Drone
We love this project by Avra Saslow. Using NASA’s open-source F-prime operating system with Raspberry Pi and an off-the-shelf drone; our intrepid maker has recreated Ingenuity here on Earth.
![Bluebot Shoal Fish Robot](http://images.ctfassets.net/2lpsze4g694w/6Ca1dxb4cLZ0T3zjhzcRku/eee68637cde60e4771ce7b51bb8ea6e2/20-21.jpg?w=800)
Bluebot Shoal Fish Robot
Not all robots fly, walk, or wheel around. Some also swim through the sea. And they do so in shoals. This month Rosie takes a look at these Bluebot Shoal Fish Robots built by Florian Berlinger. With fins and robotic bodies, these robots mimic the movement and activity of fish.
![Build an arcade machine: Decorate your cabinet](http://images.ctfassets.net/2lpsze4g694w/6oPFAAFafqTTluTe1ty2BC/2a4565c69790c94c765bc5422f26c3be/42-43.jpg?w=800)
Decorate your arcade machine
KG has been working on a full-scale arcade machine for a few issues now, and this month it all comes together with vinyl decals. We’re sure you’ll agree it looks fantastic.
![Pico Voice part 2](http://images.ctfassets.net/2lpsze4g694w/3nj4BzlS6W8XvZvRmQ682c/8578a9587d4d1b336ea710c41374c7a1/52-53.jpg?w=800)
Pico Voice
Pico Voice is a great project from Mike Cook that turns the new microcontroller into a fully-fledged voice adjustment system. With the hardware set up, Mike now looks to the software adding support for ten funky sound effects.
![Marty the Robot V2](http://images.ctfassets.net/2lpsze4g694w/2sYuXXFNUD41yx2CpX8Z9Z/d56c0c5cf15eb53e0a289935a6df7b48/78-79.jpg?w=800)
Marty The Robot v2
Marty is back. This small walking robot looks like a toy, but with Raspberry Pi added it suddenly comes to life with a powerful Python API (application programming interface). We’ve been putting Marty through their paces this month, and come away impressed with the performance.
Pick up your copy of The MagPi magazine #107
The MagPi magazine is available as a free digital download, or you can purchase a print edition from our Raspberry Pi Press store.