![Eela Audio D4 Operating Manual Download Page 26](http://html.mh-extra.com/html/eela-audio/d4/d4_operating-manual_2366485026.webp)
Pin no.
Description
1
GPI_1
14
GPO_1
2
GPI_2
15
GPO_2
3
GPI_3
16
GPO_3
4
GPI_4
17
GPO_4
5
GPI_5
18
GPO_5
6
GPI_6
19
GPO_6
7
GPI_7
20
GPO_7
8
GPI_8
21
GPO_8
9
NC
22
+5V
10
NC
23
+5V
11
NC
24
GND
12
NC
25
GND
13
NC
25 pin D-type connector pin layout for each of the 3 D25 connectors.
Eela Audio D4 manual
GPIO schematic overview:
26