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Swarm Robot build

Hey LMRians!

It's been quite a long time that I haven't been here (mostly due to being in the second last year of school and other projects). Recentlly I got interested in robotics again and I came up with the idea of building swarm robots (just a little group of maybe 10 bots, not 40+ that the universities use).

Here I want to describe my thought process a little and then ask some questions.

So my first goal is to make it relatively small, something of the size like the robots seen in this excellent video by the University of Sheffield (see embedded video below).

Open source 12 channel I2C servo controller anyone?

Hey guys!

 

I am thinking about this for a few weeks now but I'm still not sure ifI should do it. 

I have designed a 12 channel I2C servo controller and I had some proto boards manufactured by iTead studio. Of course the design will need some more refining but the main functionality is there.

In this video I show you how to read out multiple buttons using only one ADC pin. I hope this is helpful to all of you who have not enough I/O pins left or to those … Read more
Navigate around and avoid obstacles
Using a
Ronnie2 is a follow up of my first robot Ronnie which was based on an Arduino Uno. This Time I'm building it up with a dedicated robot board which was shipped with … Read more

Course correction with digital compass

Hello again LMRians!

 

I want to accomplish a course correction for my robot. I have written the code for the course correction and one for the object avoidance (without course correction). Now I need to somehow merge both loops so the robot detects the objects in it's way but also goes in a straight line.

The code can be found here: GitHub

I2C servo controller schematic and layout

Hello LMRians!

 

So after half a day of work I came up with this board design for an I2C servo controller (the schematic was done in 10 mins..). So could you please check if this design is going to work as it's the first board I've ever designed?

 

The schematic:

 

And the board layout without the GND planes:

 

With the GND planes:

A week ago I had the idea of building another lab supply. MetalmonkeeLad (Keith) suggested sharing it with the LMR lot so here we go. Read more
Have you ever programmed a microcontroller and after just a little change you made, the code - that was running completely fine last week - is not working … Read more