sudomod

Hi,

I got inspired when i first saw wermys gameboy zero earlier ths year, but did not start the project before august i think it was. The main goal of this project was to have fun while making it. I'we taken a whole lot of inspiration from wermys original guides, but some of the building was done by own ideas. I have done a lot of programming before and I work as an industrial electrician, so i have experience with programming, electronics and soldering. I have used Raspberry Pi with some other projects aswell.

Partlist:

• Broken DMG-01 without screenprotector (used the original volume wheel, speaker, pcb and buttons)
  Gearbest 3.5" screen
  Buttons from a fake SNES controller (also cut out some button wells from this one)
  Banggood powersupply
  CAT B15Q 2000mAh battery
  Banggood 4-port USBHUB
  Sparkfun microusb breakout card
  Banggood audio amplifier
  Raspberry Pi Zero
  Kitsch-Bent PWM audio filter
  16Gb MicroSD card
  3D printed screwbracket for the screen
  day's 1mm screenprotector
  Teensy 3.2
  A couple of red/green-LEDs
  Misc resistors
  MCP3008 (for batterymonitoring)
  Prototype PCBs
  An old boring Hercules something cartridge
  Offical Raspberry Pi WiFi Dongle

MicroUSB charging port in the original charging port, and I have also added a red LED next to it to indicate charging.

Tools

• Dremel 8000
  Fluke 179
  Weller soldering iron
  A million different plyers and screwdrivers

The battery was a bit bigger than I had hoped for, so i had to use the cartridgespace to get to cram everything inside the build.

Right now I'm working on a onscreen battery monitor. I'm really close to done. See pictures
As of now the script is a mashup of my code, https://github.com/aboudou/picheckvoltage, popcorn's low battery script, and https://github.com/AndrewFromMelbourne/raspidmx/. I also have a green/red-LED in the top left corner for battery status.
I think i will share my code and diagrams when I'm done

Right now I'm currently working on the discharge curve of the battery, because my battery icon now is not linear. I'm also thinking about adding a WiFi-icon when i use wifi

I'm done with the batteryindicator! It works perfect right now! Will probably post a guide in the guide section soon

Attached is the voltage curve of my 2000mAh battery, as you can see its kind of unstable, so i had to drop the 10% steps in the battery icon and replace them with 25% steps

I have been hoping a clever person would get a battery icon with instructions

I'm currently strugling for what I'm going to do with the contrast hole. Any suggestions?

activex wrote:I'm currently strugling for what I'm going to do with the contrast hole. Any suggestions?

A HDMI port if there isn't already somewhere else

sotasystems wrote:A HDMI port if there isn't already somewhere else

I don't think i'll ever connect this to a tv, so I think that would be a waste of time but thanks for the suggestion!

Just orderer a Pololu switch, found out that i want a safe shutdown function

activex wrote:Just orderer a Pololu switch, found out that i want a safe shutdown function

I added a tactile switch for safe shutdown to the top right corner on mine

sotasystems wrote:I added a tactile switch for safe shutdown to the top right corner on mine

Thought about it, but when gf/friends are playing on it and are done, they use the original switch