August 17, Power constraints...

A project log for Cubone! (Retropie encased in Gameboy DMG shell)

Gameboy handheld form factor capable of playing all emulation up to about a Playstation 1. I've been calling it Cubone.

nicholas-hillNicholas Hill 08/17/2017 at 21:000 Comments

     Amperage is going to make or break this project running on a 3. I was using a 3 for the higher level emulation, and with higher levels comes higher power consumption. I still need to do some more testing with the benchtop power supply to confirm, but I may be on the higher end of the scale as far as what a 1000c is able to supply. I could move the project over to a powerboost 1000, which could supply 2.5A but then I need to find a charger for the battery, and if it's in line with the powerbooster I won't be able to plug and play like a console. I'm going to do some further testing with settings and USB adapters to see how much I can actually pull in amperage running the pi 3 at close to the limit with 64 emulation and PS1 emulation. It wont be the end of the world if I need to back it down to a SNES max emulator, but I hate to compromise the function I wanted if it's possible. Main constriction now is money and purchasing power. If I could buy a 1000C and a 1000 powerbooster and a seperate lipo charger I would just do that and test out both builds. Ah well. I heard once that necessity is the mother of invention. From specs online I'm betting that the charging circuit will limit the whole shebang to 1 A max out anyways though. Adafruit doesn't intend to make a larger C class booster either. So looks like we're stuck trying to make this work. 

     The case came in today, I swear these things were bigger when I was a kid. Going to have to modify it a lot to fit all this fun stuff inside. The battery is much larger than anticipated, and will probably dictate the majority of how things are lined up. The HDMI ability may wind up a pipe dream. No where near time to call it yet though. Haven't even drilled out the battery pack yet so there's loads of space to free up yet. Right now I'm test fitting the things that HAVE to go in a certain place. Monitor and control board both have to be in one spot. Found online the test pads I need to power the Pi, I'll hook up everything and see what effects killing peripherals and wireless has on power consumption as well.