[srfrboybob]

I am currently running Dragons lair on a pi3 3.6 retropie. Thank you for all the helpful tips here. I am still having issues with my 8bitdo nes pro 30 controllers withe the daphne emulator. The controller work great with the keyboard and the controller works once I add coins and press player one start. Unfortunately, I can not get these buttons to map. I have add the buttons from the jstest I ran (and +1 to each number as daphne states). I also added the auto mapping but no luck. Any suggestions to map the coin and start buttons?

Oh and during the menu videos the controller only pauses the game. It doesn’t matter what button.

[srfrboybob]

Thak- thank you this helped so much. I am going to post on floobs YouTube about setting up dream cast. Several people are asking about this there.

[srfrboybob]

The adafruit 3.2″ 2616 fits very well. It has four mounting holes that have to be removed. You also have to file the left and right edges just a hair and it should fit snug. After it is in place you will need to change the overscale options. Edit the /boot/config.txt and you will have to remove the #s from the overscale lines and play with the overscale sizes. It does take time but I do not remember the sizes at this time. I hope this helps.

[srfrboybob]

I found the image I used as a loose guide. The main exception I used a USB audio off of a Pi zero to a headphone jack I wired to the volume control

[srfrboybob]

I’m glad I was able to help. There are still a few bugs but it works. I understand about not destroy in a functioning console. I only use broken units for these type of builds

[srfrboybob]

Which part of the audio circuit do you want to see? I will take pictures but I just don’t want to disassemble the entire build if I can help it

[srfrboybob]

I am able to ssh but it runs very slow. I have a Pi 2 with a screen I use to test and hardline the ssh.

[srfrboybob]

Thank you. I used two original pcbs for the controls. I cut one down as small as possible with all the buttons and one down to the a and b buttons. I glued them together using super glue. If you are using a standard two button style they do sell a easy soldier board out there.

[srfrboybob]

The pocket pigrrl does have start and pause. They are setup in part of the 5 buttons below the screen. Attached is a picture from the pocket pigrrl setup that shows the pins and keys. I think I set pause up as a different key but as long as the config for retroarch is correct it shouldn’t matter.

[srfrboybob]

Should be pins 12 and 13. I matched them to the pocket pigrrl pin layout

[srfrboybob]

Thanks it took awhile to compress almost 4 gigs to under 1 gig. The image is almost the same as mine but I also forgot to bump up the gpu mem settings. Experiment and let me know what you find.

[srfrboybob]

Here is the image. I hope it works and let me know if you improve it.

https://www.dropbox.com/s/d3fj4s1ndry3u7g/gamepizero.1.16.zip?dl=0

[srfrboybob]

I wanted to post a Link to a image of retropie that I added kernels and changed some configs. I have not added any bios or roms but wanted to verify if this was within the forum rules or not. Thank you

[srfrboybob]

Also be aware I left the over clock setting at high not turbo like I use.

*no bios or games were added. That is up to you and please respect the rules of the forum provided by petrockblock

[srfrboybob]

I have completed an 3.2.1 image to upload and will be posting a link today or tomorrow morning. The image is almost the same as I first created but I did not setup the USB audio (simple) and resize the screen. I wanted to make the image more compatible for other non Pi zero builds. Also the Vulcan pinch settings were not working exactly the same. I have my first one using start and select but this image only seems to use start and b (keyboard keys: space, alt). It’s weird but it works.

[srfrboybob]

Retrogame worked great for me. I followed the instructions on adafruit. https://learn.adafruit.com/retro-gaming-with-raspberry-pi/buttons

Then I used the pocket pigrrl software setup page for the four button setup after I followed the basic install of retrogame. I soldered my buttons to the same gpio pins as the pocket pigrrl. It was also important to not use gpio 24 and 25 if I remember correctly. If you use these pins the buttons just won’t respond. I would definitely read this adafruit guide and solder to the same gpio pins. https://learn.adafruit.com/pocket-pigrrl/software-1

[srfrboybob]

I have not gotten the image created yet. I should be able to start working on it by the end of this week. I will be posting it in the near future.

[srfrboybob]

I can’t really tell you that you have to buy another screen. There is a way out there to get it working but I am not versed enough in this issue to help with this brand. I highly recommend Adafruit products. They have a great community of support as well. I have had great results with their pitft screens. They also have access to the gpio pins (26 count) that are relocated.

[srfrboybob]

I am not familiar with the wavesshare screens. I did a search and found this link on github that might help https://github.com/notro/rpi-firmware/issues/6 You can try the links I posted above from adafruit to help with fbcp but past that I am really not sure. I spent 5+ hours trying to get my adafruit pitft 3.2 functioning. The adafruit screens trick the system to think it is still using the hdmi output.

[srfrboybob]

I have tried a lot of these methods but when I work on the ground wires it truly helped. I used a power boost 1000 c I think from adafruit and thier battery. I will have to try a few more things listed in this link you posted. I am using a USB audio I got from Amazon with a headphone jack I solder. It sounded clear before I plugged it into the USB sound card. The same issue happened with my pocket Pi grrl too. It all seemed to be contested to grounding issues and my potentiometer.

[srfrboybob]

Well I have two different sound issues. I have a slight buzzing noise and a different issue with some graphic intense games. To cut the buzzing noises I had to check all my soldier connections. I also had to connect a ground to the audio amplifier from the power in side to the headphone jack ground. Try with a test wire carefully. Just touch the test wire to the amplifier ground or power source ground to the potentiometer and or the headphone jack. Do not ground out these wires! You can also try heavier gauge wires as well. This insignificantly decreased the audio buzz noise. I also went in to alsamixer And reduced the audio to about 50% (where the meter showed green and no white). Remember to also sudo alsactl store And sudo reboot I truly believe it is a amplifier ground leak through the soldiers.

[srfrboybob]

I was afraid of that oh well. I’ll have to create a new image just to upload. It probably won’t be until after the new year. I didn’t have any problems with putty but like I stated before (and in the video link you can hear) I have audio issues.

[srfrboybob]

Here is a quick video tour of my GamePi Zero. I show game play and the inside too. http://youtu.be/x4_cERnSKVw

[srfrboybob]

I’m working on getting an image to post up but I may have to start a fresh one to post. The image is 32 gig due to expanding my micro sd. Also it has all of my roms and other items I cannot share. Please share if you have any ideas on how to create an image in its smallest form with out the additional memory and roms/bios. It is much easier to post a file that is 4 gigs instead of 32.

[srfrboybob]

It will be a bit before I get an image up but I can tell you how I got it working.

First I did a fresh install of 3.2.1 retropie, and expanded the memory.

After that I followed Phil’s retropie pitft guide ( https://learn.adafruit.com/running-opengl-based-games-and-emulators-on-adafruit-pitft-displays/pitft-setup ). At the first step the code copy/paste did not work quite right (it would auto abort the bootloader install so just type in sudo apt-get install raspberrypi-bootloader and then the sudo apt-get Adafruit-pitft-helper if it aborts). So break these commands down to single command entry if need be

next I still installed the fpcp as the original guide states but the file location will default to another location (see the web link below). There are a few different issues that prevent this from working because of software file location changes but I found a forum post from Phil that solved my other issues ( https://forums.adafruit.com/viewtopic.php?f=50&t=82865&p=421169&hilit=pitft+get_mode&sid=1b8c46db27ae88d31b319c69c57a36b9#p421169 )

Read both of these pages before you attempt the install. I fought this install for 5 or so hours until I found this forum post. Please let me know if you run into another problem with it. best of luck

Fyi-I got this 3.2.1 image to run on a pi 2, pi A+ and a Pi Zero.

[srfrboybob]

It would be tight but there are creative ways to make it fit I’m sure. The biggest issue would probably be finding the right size screen. I used a 3.2 pitft from adafruit (image attached below). I cut off both of the gpio mounts, shaved of the mounting holes and had to very carefully file down the sides a 1/16″ or so. It fits exactly in the dmg-01. Of course I had to adjust the overscale setting to keep the original look. The thickness of the screen with a board attached might be an issue too. I was also trying to use the original holes as much as possible. This limited my placement… Hmm different style battery and I could have moved the Pi to where the game slot is.

[srfrboybob]

Well… Here it is! GamePiZero and with AUDIO! A lot of work went into the image file (pocket Pigrrl image was not updated enough so I had to start from the beginning). The USB audio worked too! Did you know if there is not a USB connected to the Pi zero it will flash the green led twice and do nothing?! Well I know that now and that’s the big tip of the day! If people request it I will post the image (no roms, just a clean image with pitft setup, usb audio and retrogame.c) and here is the first GameBoyPiZero I know of and I have audio! Check back for a video link soon.

[attachment file=”111971″]

[attachment file=”111972″]

[attachment file=”111974″]

[srfrboybob]

Oh I also had to change the trim around the rear buttons. When I would set the game Pi down the buttons would activate. I used part of the battery cover from the second gameboy I parted.

[srfrboybob]

Thank you! I will keep posting when I have new up dates. I did manage to get the stock battery led to fit by sanding it flat and laying it sideways (a little case modding too). The green light you see is from the powerboost for charging he battery (turns red when almost dead, green when battery is fully charged on with power charger connected and yellow when battery is charging). I also have a pigrrl pocket from adafruit and the img of retropie worked perfectly. No setup really except a few minor adjustments.

[srfrboybob]

Nice build. I was wondering if your nes ports work but with the nes opened up I can see your USB adapters wired in. Is you power button setup to send a shutdown/halt code or do you just handle this through the retropie ui too?

[srfrboybob]

Here is some update pics. I have everything working with a Pi 2. I am still waiting for my Pi zero to be delivered but I am really happy with the result so far

[attachment file=”111340″]

[attachment file=”111341″]

[srfrboybob]

I’m currently starting this same project but I have a Pi zero coming in. I was going to use a Pi 2 but I was able to get my hands on a zero and thought it would be the best for the project. I will be posting in this forum with some pics but I may pick your brain here or there. The biggest challenge with the zero I will face is the lack of audio outs. I am going to try a usb sound card. Wish me luck

[srfrboybob]

Thanks again! I loved the adafruit page so much. It made me want to start another project. I just purchased the pocket pigrrl kit and a 3D printed case. It will be a fun project. I love building my own things but this kit will really help me with new ideas in the future. I wanted to create my own piboy but I am very new to these items. The adding of the screen, battery and audio was going to really make it difficult. Wish me luck and I will keep everyone posted. Below image is what I’m going for

[srfrboybob]

That’s is a great site. Thank you for the tip

[srfrboybob]

I did see your n64 and I really like how you used the hdmi adapter. I was lucky in how it all worked out in the end but I wanted to make the game holder still functional looking (and be able to use the spring up action/remove game) so I was limited to the Pi positions. I almost 180 it but I really did not want to ruin the original look so I was forced with how I placed it. With that position I had to buy and return parts several times and got lucky. If you have a chance look at Datapro.net. I purchased my usb power pin thru (see pic) and they have a lot of great adapters for custom builds.

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