Key Pinout

Each of these keys live in an ADC channel

Pin	Keys	Row
PA01	...	0
PA02	~ `,capslock, left shift, left ctl, left win, Z, A, Q, 1, ESC, 2, f1, tab, UK \ (left of Z)	1
PA03	F2, 3, W, S, X, left alt, C, D, E, 4, R, F, F3	2
PA04	V, Space, B, G, T, 5, F4, F5, 6, 7, H, N, Y	3
PA05	U, J, M, F6, I, 8, K, <, >, L, O, 9, F7	4
PA06	Right Alt , ? , ; , Right Win, F8, 0, P, F9, -, left bracket, right bracket, quot, =, UK # (left of enter)	5
PA07	F10, F11, BKSP, \, ENTR, Right Shift, Menu, CTRL, Ins, DEL, F12, END	6
PB00	PRTSCR, up, down, right, left, scrlck, pause, pgup, pgdown, numlock, numpad 7, numpad 4, numpad 1, home	7
PB01	divide, numpad 8, numpad 5, numpad 2, numpad 0, numpad 9, numpad 6, numpad 3, numpad del, Macro1, Macro2	8
PC00	multiply, subtract, add, numpad enter, Macro3, Q-Knob	9

PD02-PD15 are used to select which key in a row to probe, by pulling the signal corresponding to the desired column low.

Keymap used by original firmware (HID usage page / ID, and name)

	PD2	PD3	PD4	PD5	PD6	PD7	PD8	PD9	PD10	PD11	PD12	PD13	PD14	PD15
ADC CH1 (PA1)
ADC CH2 (PA2)	7/3a F1	7/29 ESC	7/1f 2	7/1e 1	7/35 ¬	7/14 Q	7/2b ↹	7/4 A	7/39 ⇪	7/64 \ (UK)	7/1d Z	7/e1 ⇧-L	7/e3 WIN-L	7/e0 CTR-L
ADC CH3 (PA3)	7/3c F3	7/3b F2	7/20 3	7/21 4	7/8 E	7/1a W	7/15 R	7/16 S	7/9 F	7/7 D	7/1b X	7/6 C	7/8b NFER	7/e2 ALT-L
ADC CH4 (PA4)	7/3e F5	7/3d F4	7/24 7	7/22 5	7/23 6	7/1c Y	7/17 T	7/b H	7/a G	7/5 B	7/11 N	7/19 V	7/2c SPC	7/88 KANA
ADC CH5 (PA5)	7/3f F6	7/40 F7	7/25 8	7/26 9	7/c I	7/18 U	7/12 O	7/d J	7/f L	7/e K	7/10 M	7/37 .	7/36 ,	7/8a XFER
ADC CH6 (PA6)	7/42 F9	7/41 F8	7/2e =	7/27 0	7/2d -	7/2f [	7/13 P	7/30 ]	7/33 ;	7/34 ‘	7/32 #	7/38 /	fff1/1 FN	7/e6 ALT-R
ADC CH7 (PA7)	7/43 F10	7/45 F12	7/89 ¥	7/44 F11	7/2a ⇦	7/49 INS	7/4c DEL	7/4d END	7/31 \ (US)	7/28 ↵	7/e5 ⇧-R	7/87 \ (JP)	7/65 MENU	7/e4 CTR-R
ADC CH8 (PB0)	7/48 PAUSE	7/46 PRT-SC	7/53 NUM	7/47 SCR-LK	7/4b P-UP	7/4a HOME	7/5f N-7	7/4e P-DN	7/5c N-4	7/59 N-1	7/52 ↑	7/51 ↓	7/4f →	7/50 ←
ADC CH9 (PB1)			c/cd ⏯	fff0/6 💡	7/54 N-/	7/61 N-9	7/60 N-8	7/5e N-6	7/5d N-5	7/5a N-2	7/5b N-3	7/62 N-0	7/85 N-,	7/63 N-.
ADC CH10 (PC0)	fff0/e Q-BUT		fff0/0 ⏭		7/55 N-*	7/56 N--	7/57 N-+	7/86 N-=						7/58 N-ENT