Tuesday, March 31, 2009

Ardubee schematics

Here's a first attempt at drawing the schematics for my Ardubee board. I'm very new to kicad so maybe it contains errors of all kind..

Monday, March 30, 2009

Ardubee, or an xbee-arduino board


So, i'm working with my robot and i have a problem: the board is deep inside the case, and i have to unscrew it to open and connect the usb cable.
I have an XBee board already inside, so i could use this tutorial to wirelessly program it.
Since this looks like a recurring problem, and since i have many project in mind that use Xbee, i tought: why not having a board with an XBee and an ATMega together? No adapters, no usb, no costly FTDI chips. Sounds cool, uh?

So i went on and installed Eagle to design the board, got scared, disinstalled Eagle and installed Kicad. Much easier. I searched around for the ATMega168 and XBee kicad components, that i found here and there, and started designing the board.

The idea is to have a 3.3V level for the whole board, just to avoid level shifting hassle and such.

The board should be quite easy to make. Stay tuned for some pictures :)

Wednesday, March 11, 2009

Many steps forward for the robot controller

Hello! So flu cought me and i'm home from work until friday, basically having 4 whole days to work on my projects.. isn't it great ? it would be even greater if i hadn't to fill thousands of handcarechiefs with what came out of my nose. But enought with my body fluids! I'm writing to show you the progress with the controller. I have completed the circuit board, making a "naked arduino" with an xbee adapter. This took about one whole day. I also made great progress with the container and the structure, and man, that was some real pain. All have to be planned and tightly placed in order for everything to fit correctly inside the box.
Anyway, i reached a good point. Now i only have the two joystick and two leds (that will be used as output devices), in future i'll place some buttons and such.
So, i tested the board by connecting the two leds to the two potentiometer of the right joystick, and magically it all worked at first try! I planned the board with great care :)

So, before i'll post some pictures, here's the video!

 


Monday, March 9, 2009

Tuesday, March 3, 2009

I hate when this happens

You purchase an item, and as soon as you start working on something to mount it and get crazy, they start selling a breakout board.

This is exacly what happened with the thumb joysticks!

Now, keep on with the way i'm mounting it, or purchase a couple of this and wait months to arrive ?