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Another DYI Gamebuino (BBGameBuino clone)

tsl Mon Jun 29, 2015 2:34 pm

Hi. It's vacation project with my almost 11yo son. We've followed the BBGameBuino project by Treflip (http://gamebuino.com/forum/viewtopic.php?f=16&t=817).
Everything works fine, the only adjustment we've made is add 10uF capacitor between ground and Vcc.
The main problem was to flash bootloader using current Arduino software. Solution is to add following configuration to the boards.txt and copying 'hardware/gamebuino/bootloaders' content to the 'hardware/arduino/avt/bootloaders' of the Arduino software installation.

Code: Select all: gamebuino.name=Gamebuino Nano gamebuino.upload.tool=avrdude gamebuino.upload.protocol=arduino gamebuino.bootloader.tool=avrdude gamebuino.bootloader.unlock_bits=0x3F gamebuino.bootloader.lock_bits=0x0F gamebuino.upload.maximum_size=30720 gamebuino.upload.maximum_data_size=2048 gamebuino.upload.speed=57600 gamebuino.bootloader.low_fuses=0xFF gamebuino.bootloader.high_fuses=0xDA gamebuino.bootloader.extended_fuses=0x05 gamebuino.bootloader.file=gamebuino_boot/gamebuino_boot.hex gamebuino.build.mcu=atmega328p gamebuino.build.f_cpu=16000000L gamebuino.build.board=AVR_NANO gamebuino.build.core=arduino gamebuino.build.variant=eightanaloginputs

Result:

Further plans: game (Dog&Bones in progress), lion battery (waiting for the ordered charger chip), plexiglass cover.

clement Mon Jun 29, 2015 6:26 pm

very nice !

tsl Tue Jun 30, 2015 7:40 pm

Thx! Ok, I see I have one issue I cannot solve.
Gamebuino states Low Battery (3306mV) occasionally, when I add circuit for battery monitor and connect to 5V from Nano, Low Battery (or Zero battery) is permament.
Any advice?

tsl Tue Jun 30, 2015 8:18 pm

Ok, just replaced 10uF capacitor I had between vcc and gnd and put into another place. It solved the problem. Maybe this was the problem or maybe I had short circuit. Nevermind. It works :)

Myndale Mon Jul 13, 2015 12:12 pm

Given that you're not actually using a battery yet I'd just tie the A6 line high which will fool the library into thinking the battery is fully charged (or rather, way overcharged).

Nice build btw! :)