GRoboduino Library (and some changes)

It's been a while... I know... But now, the GRoboduino Library is uploaded (v1) and you can find it along with the documentation and the rest of GRoboduino files in the list on the right!

Also the file hoster has changed, the files are no longer on rapidshare, they have been uploaded on google sites.

Another thing you should know is that the H-Bridge in the schematics and BOM has changed from SN754410 to L293DNE, as after thorough research it came up that the diodes in SN754410 are meant to be ESD protection ones, not clamp diodes.

GRoboduino v2 Final

Finally the fixed layout of GRoboduino is ready and the revised boards have arrived! Changes included some needed pull up resistors, some footprint changes as well as some silkscreen additions. Also high current traces got wider and 5v Regulator can supply up to 2A instead of 1A (78 S 05).

Below you can see a photo of the new board - assembled:

Bill Of Materials:

GRoboduino BOM

The GRoboduino is released according to Creative Commons Attribution - Share Alike 3.0 License.
(http://creativecommons.org/licenses/by-sa/3.0/)

Here are the pdf's exported from eagle.

Schematic (PDF)

PCB (Top) (PDF)
PCB (Bottom) (PDF)
PCB (All Layers) (PDF)

GRoboduino Prototypes

The pcb prototypes arrived yesterday! You can take a look:

PCBs

You can understand the size now...

All the components needed...

With the IC sockets soldered...

Fully assembled board!

GRoboduino

GRoboduino Key points:


* ATMega328 with Arduino Bootloader, running at 16Mhz
* Motor Controller: Dual H-Bridge, 4.5v - 36v, 600mA per motor (1.2A peak), with selectable power (internal regulated voltage or Vin), occupying only 2 arduino pins / motor!
* Buzzer  (pin 10)
* Led (pin 13)
* Servo compatible pins for all available analog and digital pins

* Screw Terminals for Motors and Vin

* FTDI Connector

* 5V Regulator (2A)

* Compact design, although using discrete components
* Available as a KIT or fully assembled board
* Easy to build (as a kit)

* Arduino library for all peripherals


In the following days, information on pricing and availability will be posted as well as pics of the prototypes and a building guide.