Go Mobile with PApPi

thingiverse

# Go Mobile with PApPi ## A Portable Arduino Programmer You know that moment when you're showcasing your latest wearable or embedded project, and suddenly one of the LEDs stops blinking or a sensor fails to read properly? If only you had access to your notebook computer, you could make some quick code adjustments on the spot. That's where PApPi comes in – a Portable Arduino programmer with Raspberry Pi (or, PApPi for short) that lets you program your projects anywhere. This sleek device is built around a Raspberry Pi B+, a 4D Systems 4DPi-32 3.2-inch LCD Primary Display, and the new Arduino Linux ARM IDE. With PApPi, you can easily carry your on-site programmer in your purse or coat pocket, making it easy to make adjustments and be a hero in no time. *NOTE:* The new Arduino ARM IDE is available for download from the main Arduino Web site: arduino.cc. *NOTE 2:* As this project was being completed, two exciting new products were released that could enhance PApPi: PApPi 2! - Raspberry Pi 3 Model A+ - RB-Ras-08 from RobotShop at https://www.robotshop.com/en/raspberry-pi-model-a-plus-computer-board.html - LCD Touchscreen HAT for Raspberry Pi – TFT 3.5-inch (480x320) from SparkFun Electronics LCD-14776 at https://www.sparkfun.com/products/14776 ## The Project Before you start building this project, you may need to visit your local hardware store to pick up some essential fasteners: - 4x 6-32 screws/nuts - 4x 4-40 screws/nuts - 4x 2-56 screws/nuts Also, make sure to set up the 4D Systems LCD according to their instructions before assembling this project. Then it's as simple as: Step 1. Mount the Pi to the PApPi base with the 4-40 hardware. You might need to remove the microSD card before installing the Raspberry Pi. Step 2. Fasten the LCD to the PApPi top using the 2-56 screws and nuts. Step 3. Connect the top to the base with the 6-32 fasteners, insert the microSD card, plug in an appropriate power supply, and attach a keyboard (no mouse is needed; it's a touchscreen LCD). Finally, there's an optional PApPi base included with this project labeled base_battery. Use this base only if you plan on powering your project with a battery. Instructions for using battery power can be found in the Raspberry Pi documentation. Enjoy.