Hardware - notnullgames/pakemon GitHub Wiki

These are some ideas around hardware.

gameboy

This looks like a gameboy, with a couple extra buttons. This is the primary target device for the pakemon frontend.

pull hub out of case, hook up to pi
hook pi HDMI up to screen (with short HDMI cable)
hook HDMI headphones up to amp+speaker/headphone jack
hook UPS to pi
plug rtl-sdr into USB hub
use rpitx for transmit
chop up controller to fit in gameboy form-factor or use i2c with port-expander

Or another (possibly better/cheaper plan)

$1.50 - 16 I/O i2c bi-directional port-expander
$7 - input board
$6.50 - GB case kit
$4.75 - cheap LCD there are also touch-options for a couple bucks more. This also costs a dollar more, but might be easier to work with, includes touch, and has 3 hardware buttons next to screen. Another option might be this one
$10 - pi-zero-w
$2 - UPS power
$1.50 Nrf24l01 2.4ghz Transceiver
$1 - i2c volt-meter to get battery levels. make sure software mostly sleeps (like wake and take a reading every 5s or less)

You'd also need a 18650 battery, but this gets the price ~$35 without the battery!

keychain

This is headless device that can do badusb stuff, and be controlled from the trainer, in the field. No frontend, should be fairly autonomous and/or remote-controlled.

$10 - pi-zero-w
$20 - UPS power

thumbdrive

MCU-32 virtual keyboard Badusb Leonardo USB ATMEGA32U4
can be programmed with circuitpython or arduino to interpret ducky script directly, or pre-encode a payload for it