Atmega 328p question about ADC6 and ADC7
Fri Nov 14, 2014 4:27 pm
First off, thank you all for your hard work especially rodot and anyone else who had anything to do with the hardware/software for this aweaome device. So i have all of the parts to build a gamebuino and have had success in burning the bootloader on an atmega328p and getting the display working (still fighting sd card). I have a problem where when i turn it on it shows the main screen then says something along the lines of battery critical power off. My question is, since i have a 328p i do not have ADC6 or ADC7, Can i use I2C DAT and I2C CLK instead which are mapped to A4 and A5 and change the pins in settings.c in the library? I do not have to have I2C at all, i would love to have battery monitoring and ambient backlight control. Thank you in advance.
Re: Atmega 328p question about ADC6 and ADC7
Fri Nov 14, 2014 6:18 pm
Sure you can, but you won't be able to add I2C modules. Good luck!
Edit: The only thing is that you'll have to re-compile games with your own settings or you'll get a "battery critical" all the time. In the next update I'm going to add a setting to disable this and save this setting.
Edit: The only thing is that you'll have to re-compile games with your own settings or you'll get a "battery critical" all the time. In the next update I'm going to add a setting to disable this and save this setting.
Re: Atmega 328p question about ADC6 and ADC7
Fri Nov 14, 2014 6:31 pm
So if i change this line in settings.c ,
# define BAT_PIN A6
To
# define BAT_PIN A4
And had it wired like the schematic except BAT MON would be on pin analog input 4 on the 328p i would be able to monitor the battery level? Why would i have to recompile the games exactly? Do the games defne the pin to use for battery monitoring or the library?
# define BAT_PIN A6
To
# define BAT_PIN A4
And had it wired like the schematic except BAT MON would be on pin analog input 4 on the 328p i would be able to monitor the battery level? Why would i have to recompile the games exactly? Do the games defne the pin to use for battery monitoring or the library?
Re: Atmega 328p question about ADC6 and ADC7
Fri Nov 14, 2014 6:58 pm
Yes that would work.
Games are compiled with the default settings, so they monitor the battery on the pin 6. As you have a custom gamebuino, you have to compile the games with your own battery pin settings for it to be taken into account.
Games are compiled with the default settings, so they monitor the battery on the pin 6. As you have a custom gamebuino, you have to compile the games with your own battery pin settings for it to be taken into account.
Re: Atmega 328p question about ADC6 and ADC7
Fri Nov 14, 2014 7:33 pm
I see. Well thank you for the replies and your hard work on such an awesome device. I will be purchasing one in the near future.
Re: Atmega 328p question about ADC6 and ADC7
Fri Nov 14, 2014 10:22 pm
You're welcome, send us picures when your prototype is up and running 
Re: Atmega 328p question about ADC6 and ADC7
Sat Nov 15, 2014 6:44 am
This is what ive got so far. nothing special really just a breadboard with all of the components. Im still loving it though!
The only problem now is the sd card, i cant get it to work. i think it is because i only have an sdhc card? not sure if that is causing problems.
Now i just need to build a custom pcb and itll be 100% portable. Here are some links to videos i made of it in action.
Playing conways game of life - http://youtu.be/6GKZ-r6QVBs
Showing whole breadboard with mess of wires - http://youtu.be/7NvMABGpIPs
The only problem now is the sd card, i cant get it to work. i think it is because i only have an sdhc card? not sure if that is causing problems.
Now i just need to build a custom pcb and itll be 100% portable. Here are some links to videos i made of it in action.
Playing conways game of life - http://youtu.be/6GKZ-r6QVBs
Showing whole breadboard with mess of wires - http://youtu.be/7NvMABGpIPs
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