QMK

MCU情報
STM32F072CBT6
https://www.stmcu.jp/stm32/stm32f0/stm32f0x2/11915/
https://scrapbox.io/self-made-kbds-ja/電子工作初心者が_STM32F072CBT6_を使って設計と実装した記録

https://www.reddit.com/r/ErgoMechKeyboards/comments/1cv21sw/stm32f072cbt6_qmk_available_pins/

info.json Reference
https://github.com/qmk/qmk_firmware/blob/master/docs/reference_info_json.md

Keycodes
https://docs.qmk.fm/keycodes

PS/2 Mouse Support
https://docs.qmk.fm/features/ps2_mouse
PS/2 Mouse@geekhack
https://geekhack.org/index.php?topic=50176.msg1127447#msg1127447
PS/2各ドライバの実績＠Reddit
https://www.reddit.com/r/olkb/comments/xppdsz/ps2_interrupt_delays_on_avr/
Issue PS/2 interrupt handler silently drops bytes in case of errors #18077
https://github.com/qmk/qmk_firmware/issues/18077

https://github.com/samhocevar-forks/qmk-firmware/blob/master/docs/faq_debug.md#trackpoint-needs-reset-circuit-ps2-mouse-support

SK8707@crkbd(RP2040)
https://github.com/joh/crkbd-trackpoint/tree/main

TrackPoint作例 ZMK Firmware
https://kbd.news/How-to-integrate-a-trackpoint-into-your-keyboard-2447.html

TrackPointのRC回路（本当にあってる？）
https://github.com/alonswartz/trackpoint?tab=readme-ov-file#2-create-the-reset-circuit-rc

Reset IC
https://www.lcsc.com/product-detail/Supervisor-and-span-style-background-color-ff0-Reset-span-ICs_Texas-Instruments-TPS3823-33DBVR_C7719.html

MAX810
https://www.analog.com/jp/products/max810.html

RC Reset あってる？
https://www.techtarget.com/whatis/definition/power-on-reset-PoR

DirectPinとMatrix
https://discord.com/channels/777912889344393216/1209872782188347433/1232555906424901695

Audio
https://docs.qmk.fm/features/audio
Audio Driver
https://docs.qmk.fm/drivers/audio

RP2040 + Audio
https://www.eisbahn.jp/yoichiro/2022/12/rp2040_audio.html#gsc.tab=0

LED Indicators
https://docs.qmk.fm/features/led_indicators

WS2812 Driver
https://docs.qmk.fm/drivers/ws2812

LED実装方法
https://25keys.com/2022/05/28/rp2040_sk6812mini/
https://okiraku-camera.tokyo/blog/?p=16074

ロータリーエンコーダーチャタリング防止回路
https://note.com/sam1dare/n/n24d04427d4c3
https://denshikousakusenka.jimdofree.com/電子部品/ロータリーエンコーダー/
https://www.digikey.jp/ja/resources/conversion-calculators/conversion-calculator-low-pass-and-high-pass-filter
https://industrial.panasonic.com/jp/ss/technical/b4

Debug
https://docs.qmk.fm/faq_debug#debugging

回路設計関連
（続）その未使用ピンをどうにかしなさい！
https://www.analog.com/jp/resources/technical-articles/bbs_14.html