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The DUO

Arduino Based 2-Button(and Accerometer) Pocket Gaming System

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The goal is to create a simple gaming platform, something you can carry on a keychain or in your pocket. Plays simple low resolution games capable of being shown on a tiny OLED display. Anyone will be able to develop and share their own games. If possible at some point, add a way to drag and drop .DUO files to an Arduino bootloader of some sort, so multiple games can be stored on the device. Part of the fun and the challenge is utilizing only the two buttons and the accelerometer to create the games. Being partially limited could inspire some creativity.
There will be two versions, the DUO MX, and the DUO Nano. The DUO MX will have cherry MX keys, for those who love mechanical keyboards, but it will be slightly bigger. The DUO Nano will have regular tactile switches, making it much smaller. It can also be useful for people who fidget and like having things to click.
It would be great to develop a community of people creating games for the device.
Who wants an early dev. version?

This mini gaming system will run on the SAMD21G Atmel microcontroller. I'm planning on cramming a giant 320-400mAh LiPo battery behind its monstrous 64x48 pixel OLED screen. Tired of your old "not very clicky" boring typical buttons? How about Cherry MX buttons. That is right. This system will have actual cherry MX buttons so you can fit any of your favourite key caps. With an on board accelerometer(+ gyro and compass - MPU 9250), your games don't just involve clicking, they also require some movement, you'll be accelerating all over the place with this thing. Watch out!

Possible upgrades/addon modules:

  • GPS
  • Bluetooth
  • Wifi
  • Extra Buttons
  • GPIO Board
  • RGB LEDs
  • Camera Module

Want early access to start designing games and apps?   Contact me. I'm looking for creative developers to get an early version of the board and start creating some apps/games - maybe even a custom bootloader or game loader. 

I'm in the works of possibly Kickstarting this. Unless I win the HackADay prize, then I wouldn't need to! :)

  • 1 × ATSAMD21G18A-MU

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Discussions

zakqwy wrote 6 days ago point

This is awesome! Love the form factor. Can you post more design details? Chipset, power source, etc?

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Sean Hodgins wrote 6 days ago point

Yeah, I do need to add a bit more details, haha. Have been busy with a few projects. I'm going to add a BOM and stuff now, since I just ordered the parts. Should be here tomorrow.

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zakqwy wrote 6 days ago point

saw the Project Details update, thanks for filling us in! I haven't used the SAMD series; what's the toolchain (physical & otherwise) like for those chips? Looks like the PCB is pretty well sorted, but did you consider a higher feature IMU like the BNO055? Offboarding sensor fusion and so forth makes the data much easier to work with, depending on what the developers are looking to do..

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Sean Hodgins wrote 6 days ago point

The SAMD21 series is capable of being programmed using the Arduino IDE or MicroPython. In fact most Adafruit boards like the Feather and the new trinket use the SAMD series. They're pretty versatile and powerful chips. I'm not much of a low level programmer, but I would love to have a system on board where you could drag and drop ".duo" files as apps, and have the system be able to boot them from a list. That way people could develop games, but keep the same firmware on board and add as many as the memory allows. I don't know if this is really possible yet, but I will see. 

Thanks for the info on the BMO055 I will look into the performance differences between that and the MPU-9250. I'm familiar with the MPU series as I have used them in the past without complaints, which is why it was chosen, but that can change. 

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Sean Hodgins wrote 7 days ago point

Its actually a 64x48 OLED, not as commonly used. 4:3 ratio, good for porting old games.

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davedarko wrote 7 days ago point

should have one of them as well :D are you using an atmega32u4?

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davedarko wrote 7 days ago point

Are you using the 64x32 Oled? I'm kind of interested and bought a display the other day. If I have a good idea for a game, I'll get back to you :)

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Sean Hodgins wrote 7 days ago point

Forgot to hit reply, commented above. :)

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