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• Pyxel-Paradise Launcher Demo

  rkrishnasanka • 09/02/2019 at 20:21 • 0 comments

  So after mucking around a little in pyxel and having a chat with the creator, I decided to just make a very simple selection list on python/pyxel.  

• GamePad PCB working

  rkrishnasanka • 08/28/2019 at 04:37 • 0 comments

  So I got the GamePad PCB two weekends ago and I’ve putting off the soldering and test for a bit and finally got to it this weekend. It looks like all the button clicks and whatnots are working well and I just need to wait for the powerstrip PCBs to arrive now. Here’s the demo game in Pyxel working in conjunction with the joystick.

  Now all that’s left is the launcher for starting/selecting the games and crimping in all the power connections.

• v1 of the Pyxel PCB

  rkrishnasanka • 08/05/2019 at 02:34 • 0 comments

  So I finally got around to making the PCB for the arcade controls. I also send it the order to oshpark for this, Now I just gotto wait for it to come back

• Debugging the joystick

  rkrishnasanka • 08/03/2019 at 16:37 • 0 comments

  So I had to change my initial design of the arcade joystick controller to from a low side switch to a highside switch to make it work correctly. I think I will need to create a separate reference diagram for the adafruit folks to add to their website. 

  Finally I decided that I'm going to crimp the joystick cable into a JST XH 5 pin so that it becomes easier to assemble on the board and because its easier to get the housing components.

  This assumes that the cable is at the bottom:

  Wire	Direction	Pin Number (From Left)
  Red	EAST/RIGHT	5
  Orange	WEST/LEFT	4
  Yellow	SOUTH/DOWN	3
  Green	NORTH/UP	2
  Black	Common Ground	1

• Pyxel is now working on the RPi

  rkrishnasanka • 07/31/2019 at 04:50 • 0 comments

  In short I didn't do much work to make this happen it was the creator Pyxel who in his/her infinite wisdom decided to replace glfw as a dependency and decided to make sdl2 the base framework. The main trick to get half decent frame rate was that I killed the entire desktop manager beforehand.

• Completed mechanical design finally !

  rkrishnasanka • 04/28/2019 at 21:19 • 0 comments

  So I finally pieced together the full cabinet. It seems like there are more things I need to address but for all intents and purposes, I’m done with the mechanical design. 

  I had to redo the speaker panel so that speakers are not vertical but horizontal. Though the speakers are smaller in dimensions, the thickness is larger. Caused the controller button to clash with the speaker box. Personally I like the newer orientation of the speakers, the older design kinda looked yucky.

  I think there’s definitely a bunch of things I’d like to change for version 2. Like the way I need to assemble this, right now it’s not super great I had to glue individual pieces one by one that was kinda annoying.

• Finished the updated Speaker Panel

  rkrishnasanka • 04/27/2019 at 16:04 • 0 comments

  So after a months of waiting for the parts to come, I finally got fed up with the wait times and I ended up ordering a replacement speaker from Adafruit (https://www.adafruit.com/product/1669). I'll be wrapping up the construction tonight and then proceed to finishing up powerboard and the faux keyboard setup.

• Finding the Right Connectors

  rkrishnasanka • 04/01/2019 at 02:13 • 0 comments

  So the project has been on a standstill for the past couple months because, my part orders didn't get processed through the university. But I've also been having a tough time figuring out what cables are being used for all the boards. Because most of the documentation for the Adafruit parts have been in chinese, it was impossible to find the specs so I ended up getting the Dirty PCB Cable Sample pack: https://dirtypcbs.com/store/designer/details/ian/3841/dirty-cables-sample-kit-v1-0 for this and future projects.

  I finally got the delivery last week (8 week delivery wait) and so now I'm checking against the other parts now.

  So here are the things I'm figuring out:

  Part	Spec	Link
  Joy Stick Connector	2.54 mm KF2510 (5 Pin)	https://www.adafruit.com/product/48
  Audio Port for Monitor	2.00 mm JST-PH (4 Pin)	https://www.adafruit.com/product/2301

• Creating a back cover for the Screen

  rkrishnasanka • 12/27/2018 at 00:01 • 0 comments

• Burning the Raspbian Image

  rkrishnasanka • 11/13/2018 at 23:49 • 0 comments

  So I put off the burning of the image until I got the new SD card for this. I realized that I had no microSD cards or a mini HDMI cable on hand (updated the parts list too).

  I'm following the instructions from the raspberry pi's main website, and I realized that Etcher is a really neat looking application that simplified the burning process a lot.

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