.------.___.-----.
--[|/RESET 1 20 VCC|]--- 5V .--.________________________________
--[|RXD 2 19 | |xx|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/
--[|TXD 3 18 PB6|]----- ROW_DATA |xx| GND -. (red side) \
| 4 17 PB5|]------- STROBE |xx| GND -+ /
| 5 16 PB4|]----- BLACK_OE |xx| GND -+ `
| 6 15 PB3|]----- WHITE_OE |xx| GND -+ (cable comes from here)
| 7 14 PB2|]---- COL_CLOCK |xx| GND -+ ,
| 8 13 PB1|]---- ROW_CLOCK |xx| GND -+------. \
| 9 12 PB0|]----- COL_DATA |xx| GND -+ __|__ /
.-[|GND 10 11 | |xx| GND -+ --- \
| '----------------' |xx|_____ | ____ ~ ________________/
| '--' |
|______________________________________________|