proxmox-controller-thing/notes.md

Notes

Boards

• Raspberry Pi Zero 2 W - cheapest option

  • No battery charging
  • Consumes more power even if it had a battery

• ItsyBitsy M4 Express w/ WiFi

  • Can get the M4 via the Hack Club store
  • WiFi (Bitsy AirLift) is $15 from AdaFruit, can also be bought on Digikey
  • WiFi uses a lot of power relatively
  • No battery charging

• Adafruit nRF52840 Feather (link) (digikey)

  • $25
  • Has Bluetooth - lower energy
  • Has battery charging built-in

Displays

• Various E-ink displays from Adafruit
  • 2.13" tri-color looks promising
  • Or monochrome (more colors vs faster update speeds)
  • NVM BAD OPTION: 3-15 seconds for updates (monochrome vs color), 3 minutes between full refreshes
    • I don't want to have to code carefully around doing full refreshes
    • And 3 seconds even isn't great, but is usable
• OLED display with controls
• OLED display with 3 buttons (digieky)
  • 10mA power draw
  • Any leftover buttons can be user-assignable

Controls

• Joystick things
  • Joystick with button
  • Slim joystick
    • Breakout board
  • Similar: PSP 3000 joystick
    • Easier to mount?
  • 5-way switch
    • Cap
• Possible control scheme:
  • Menu/list system
  • Up and down to go through the list
  • Click certain button to engage with sub-menu (like a slider or something)
  • Left and right to go in and out of sub-menus
  • Another button to click in sub-menu

Other

• Headers:
  • Short female headers (digikey)
  • Short male headers (digikey) - can just use the included ones instead if we trim them down a bit
• Batteries:
  • 18650 - can make a triangle shape so it sits nicely in my desk, 2200mAh (lasts ~36 hrs)
  • flat lipo - flat and small (lasts ~7 hrs)

not final but somewhat thought-out and researched plan

• nRF52840 Feather
• 128x64 OLED FeatherWing
• Some kind of joystick
• Headers, obviously
• 3d print some decent caps for the buttons