zkusit TLC5945PWP (nebo radsi TLC5926IDWR) a dvoubarevny display pro jednobarevny TLC5916IDR.
zkusit https://assets.nexperia.com/documents/data-sheet/IP4220CZ6.pdf https://fishpepper.de/2016/09/02/using-dfu-to-flash-stm32-f2-f3-f4-flight-controller-on-windows-and-linux/
http://cholla.mmto.org/stm32/serial_boot.html
https://github.com/majbthrd/stm32cdcuart/tree/master/src
consider:
https://opengameart.org/content/7x4-font
https://github.com/idispatch/raster-fonts/blob/master/font-4x6.c https://github.com/idispatch/raster-fonts
STM32F030CCT6, some AVR Xmega
http://cz.farnell.com/stmicroelectronics/stm32f070cbt6/mcu-arm-cortex-m0-48mhz-lqfp-48/dp/2750627
https://www.alibaba.com/product-detail/Single-Color-LED-4x4CM-XH-16163BRW_613060205.html https://www.alibaba.com/product-detail/XH-16163BRW-NEWSHINE-Single-Red-Green_60490712186.html?spm=a2700.7724857.normalList.21.401382309Duf3G
http://cz.farnell.com/texas-instruments/tlc5945pwp/led-driver-16ch-curr-sink-tssop28/dp/1647810
without pwm http://cz.farnell.com/texas-instruments/tlc5916idr/led-driver-constant-current-soic/dp/2782578
https://cz.farnell.com/texas-instruments/tlc5926idwr/led-driver-analogue-30mhz-wsoic/dp/2382843
http://cz.farnell.com/nexperia/npic6c595d-118/shift-register-8bit-sipo-siso/dp/2445191
http://cz.farnell.com/stmicroelectronics/stp08dp05mtr/led-driver-8bit-30mhz-nsoic-16/dp/2460706
reasonable case https://www.promelec.ru/pdf/MBI5031.pdf
https://cz.farnell.com/exar/xrp2523istr-f/switch-pwr-dist-6-5v-1-5a-5sot23/dp/2266348RL https://cz.farnell.com/on-semiconductor/fdc6330l/ic-mosfet-dual-np-supersot-6-6/dp/2438430 https://cz.farnell.com/microchip/mic2091-1ym5-tr/power-switch-100ma-sot23-5/dp/2509914
(too high voltage drop)
http://cz.farnell.com/microchip/mic2981-82ywm/high-volt-current-source-driver/dp/2774933
http://cz.farnell.com/allegro-microsystems/a2982slwtr-t/source-driv-8ch-50v-500ma-soic20/dp/2296009
4ch( az v lednu, novinka) https://cz.farnell.com/stmicroelectronics/vnq7140ajtr/powersso-16-high-side-driver/dp/2849835
taky by slo, ale pomalejsi: https://cz.farnell.com/microchip/mic2027-2ym/switch-mosfet-quad-active-high/dp/2509902
https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/TBD62783AFGEL/TBD62783AFGELTR-ND/5514113 https://cz.mouser.com/ProductDetail/Toshiba/TBD62381APG?qs=%2fha2pyFaduihGZcHapjrPd7PijI8dWqb4isLpsjAKdQehmbdzlI6U4zLMgJZZ2x2&utm_source=octopart&utm_medium=aggregator&utm_campaign=757-TBD62381APGHZ&utm_content=Toshiba
http://cz.farnell.com/multicomp/2214br-08g/socket-pcb-2-row-r-a-8way/dp/1593498
https://docs-emea.rs-online.com/webdocs/0e0c/0900766b80e0c5ce.pdf
https://lcsc.com/product-detail/Female-Header_Curved-round-mothers1-4P_C88278.html
https://cz.farnell.com/richtek/rt9161-33gv/ldo-fixed-3-3v-0-3a-sot-23-3/dp/2377653
tomuhle staci 1uF kondenzatory: https://cz.farnell.com/richtek/rt9166-33gvl/ic-ldo-fixed-3-3v-0-3a-sot-23/dp/2363085 https://cz.farnell.com/microchip/mcp1700t-3302e-tt/ic-v-reg-ldo-250ma-smd-sot-23/dp/1296592
https://cz.farnell.com/c-k-components/kss231g-lfs/tactile-switch-spst-smd-2-5n/dp/1437639?st=kss231g https://lcsc.com/product-detail/Tactile-Switches_C-K_KSS341GLFS_C-K-KSS341GLFS_C221798.html
https://www.gme.cz/p-phap-3355r
https://lcsc.com/product-detail/Tactile-Switches_Korean-Hroparts-Elec-K2-1112SA-A4SW-01_C128949.html
https://cz.farnell.com/wurth-elektronik/629105136821/micro-usb-2-0-type-b-receptacle/dp/2442761
consider:
overhang for soldering iron 0,6mm