8/5/2026 - 9th Update!

yeah, took a day off yesterday for some silly art, anyways, 5:15 PM, and we’re back!

ok, added the updatelog from 8/3/2026 onto the website, so we have to finish the schematic today!

todo

• update pins to add spi communication between the two mcus
• add backup for uart or some other communciation method
• add redundancy for other peripherals
  • other audio jack formats other than TRS, USB, etc.

and more lists

MCU A

• 0-3: SPI0 MCU (to implement)
• 0-6: Buttons (switch to 4-10)
  • updated, GPIO10 is the connector
• 8-11: Micro SD Card (switch to 11-14)
  • changed RX from 8 to 12
  • changed CS from 9 to 13
  • changed SCK from 10 to 14
• 12-13: OLED 128x32 Display (switch to 18-19)
  • changed SDA from 12 to 18
  • changed SCL from 13 to 19
• 16-17: UART0 MCU (backup) (to implement)
• 23-25: RGB, Board, Boot LEDS
• 26-28: Audio

MCU B

• 0-3: SPI0 MCU (to implement)
• 0-5: LCD 128x160 Display (switch to 8-13)
  • changed BLK, generic from 5 to 13
  • changed CS, SPI1 CSn from 1 to 9
  • changed DC, generic from 0 to 8
  • changed RST, generic from 4 to 12
  • changed SDA, SPI1 TX (MOSI) from 3 to 11
  • changed SCL, SPI1 SCK from 2 to 10
• 16-17: UART0 MCU (backup) (to implement)
• 23-25: RGB, Board, Boot LEDS

ok, stuff updated, gotta implement the connection now, ok, pin set thingy added, also gotta consider how to do the board connection thing since it’ll be more repairable if we have an array of pins headers instead of soldering the display directly to the board, but for now, quick commit!

so, in trying to rename a commit, i seem to have deleted the commit for 8/3/2026… uh, my bad

oh the timelines messed up a bit… uh, let’s ignore that, 6:24 PM, off to dinner!

im back at 12:53 AM. no, dinner was not 6 hours lol

added a TS audio jack, then learned that, according to the docs under section 3.4, its not exactly for headphones but is meant for amplifier inputs (they do work with high impedance headphones but idk whether i have those)

huh kicad just went black

ok, back from kicad, just did a bunch of audio stuff, idk how much of its correct, but it’s kinda 2:18 AM right now so yeah, here’s a picture!

yeah, had to mvoe things around a bit, idk, still gotta look more into this, had to pull up the datasheets lol (pull up? like pull up resistors???)

anyways, it’s now 2:20 AM, so yeah, good night!