This prototype is
work in progress. Not even checked the errors! So, do not blame me if you decide to build it...
Version 3
Added a testing LED (blue) on
Digital 13 pin, enabled/disabled by a jumper, increasing
Arduino Diecimila compatibility. I changed the pcb designer to
gEDA PCB (which have also a Windows version)
. Here is a library of components (is an addition to standard components which come with the program) for gEDA PCB. The file is named "
FreeJALduinoMEGA3.pcb" and you can download it from the bottom of the page. The board is a little larger, have holes which can help fixing the board and all LEDs are 3mm diameter. Also, it have more filtering capacitors and PC USB protection.
I'm not yet able (health problems) to make it available for other pcb designers.
Version 2
Update Aug.31 2009:
Added one more socket to solve 100mil perfoboard problem. Repositioned the ICSP male connector to allow a direct connection with Pickit2 (I hope it will fit this time... and don't forget to
remove the shield when you use Pickit2 programmer without external power). File available at attachments as freejalduino-mega02.brd
.
Version 1
Update:
Re-worked the board a little and removed two bridges. File available for download at attachments. Images updated.
Features:
- PIC18F4550
- Arduino shields compatibility
- LM3940 3.3V regulator on board
- Power LED (3mm, green)
- Run LED (3mm, red). Required by bootloader from Pinguino project.
Issues:
- Only AREF (Arduino pinout) pin is left unconnected. I let it unconnected because I don't consider it important. For A/D operations, a PIC is better (and have his own voltage reference pins if you need that) than Arduino and you must make your own shields.
- Only two PWM hardware outputs. Again, if you need more than 2 hardware outputs, use an Arduino.
