MovingRaspi is a project I had some times ago, and I've just decided to start. Project's goal is to motorize a Raspberry Pi and control it with an iPhone (or iPad, or iPod Touch). This first part is about the preliminary steps.
The final project will need four connections to the outside world:
As I don't want the robot to be followed by four cables, I had to made some changes:
In the end, I'll need only one cable. I have to choose a power capable to source enough current, so I chose a 5V switching power supply providing up to 4A. Why this one :
Thus I need up to 3.3A. Chosen power supply covers all my needs, with some margin for future. Assembly for this common power supply should look like below:
From left to right : USB hub power supply, Raspberry Pi power supply, and 2 connectors for motors and other needs.
In real life, it looks like bellow (as I'm still waiting for the needed power supply, I use a computer ATX power supply):
When the power supply is working, I'll need some items to make the robot
Mechanical items :