==== LED displays ====

32x32mm: http://www.hlvled.com.k.90qh.com/images/up_images/HL-M1388BR.pdf

37.5x37.5mm (1.5x1.5in?)

37,5x 37.5 Red/green 
https://pdf1.alldatasheet.com/datasheet-pdf/view/574150/LIGHTKEY/LM15088ABRG.html

https://www.openimpulse.com/blog/wp-content/uploads/2017/02/led_light_1.png

60x60mm red only  https://www.photoxpost.com/greenforcecells/fimage/5mmred1.jpg

https://www.photoxpost.com/greenforcecells/fimage/5mmredgreen1.jpg
==== High Side (Sources) ====
ftp://imall.iteadstudio.com/IM120410004_Colorduino/Documents/DS_M54564FP.pdf
https://www.marutsu.co.jp/contents/shop/marutsu/datasheet/m54532p.pdf
==== Low Side (Sinks) ====

http://www.ti.com/lit/ds/symlink/sn74f244.pdf

==== MCU ====
http://dcinfrastructure.blogspot.com/2017/04/tm32f103c8-tqfp-48-breakout-pinout.html

==== USB ====

https://gct.co/files/drawings/usb3106.pdf

==== Joystick ====

https://cz.mouser.com/search/Refine.aspx?Keyword=138633190&FS=True&Ntk=P_MarCom&Tb=datasheets