Tuesday, December 17, 2013

Getting crowdy on the bus....


Assembling the second display board. These are all the i2c adresses at this moment. 4 adresses will be added when all boards are fully assembled.

[root@rgbclock ~]# i2cdetect -y 1
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: 20 21 22 -- -- -- -- -- -- 29 -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: 40 41 -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- 5a -- -- -- -- --
60: -- -- -- 63 -- -- -- -- 68 -- -- -- 6c -- -- --
70: 70 -- -- -- -- -- -- --

Monday, November 11, 2013

Panelizing the 3 boards

I have combined all 3 boards into a single board (panalizing, reducing board costs) using this tutorial:

http://www.instructables.com/id/Panelizing-PCBs-for-Seeed-Using-Eagle-Free-Light/

Gerbmerge:
http://ruggedcircuits.com/gerbmerge/

3 boards routed !

I managed to route all 3 boards ! Still some minor changes needed to the mainboard.
Special thanks to http://www.freerouting.net/ for doing the autorouting part. All routes where routed with this autorouter. Only a few routes where manually routed (especially around the FM receiver).


Mainboard:


Displayboard:

Leddriverboard:


Wednesday, October 9, 2013

Eagle library parts

I'm surprised to learn that creating Eagle library parts is actually quite easy; see this tutorial:
http://www.msilverman.me/2010/06/creating-a-new-device-in-eagle/

And it is even faster when you copy a existing symbol/package. In my case the library for the Si4735-D50 FM receiver...

Monday, October 7, 2013

Schematics of PWM LED driver prototype board (PCA9685 and ZXLD1362 as main components)

I have uploaded the schematics of the PWM driver prototype board. It was just a test board to get started with Eagle software. 
You can view the schema here. I'll start the schema entry of the other boards in the next days; all files will be available on the source page.