OLIMEX© 2016
STM32-H405 user's manual
6.3 EXT connectors
At the bottom of the board there are two extension rows of pins. These 2 x 26-pin connectors
combine different processor ports and provide very nice GPIO option – you can interface the
signals exposed with your breadboarding wires; you can use them as headers; you can take signal
readings; etc.
The distance between two pins from the same row is 0.1''. The distance between the two EXT
connectors is exactly 1''.
Refer to sub-chapter 2.3 “EXT pinout (bottom view)” for visual representation of each pin of the
connectors.
6.3.1 EXT1 header
EXT1 HEADER
PIN #
STM32H405 PIN
PIN #
STM32H405 PIN
1
PA11
2
PA8
3
PA12
4
PA9
5
3.3V (VDD)
6
GND
7
PA10
8
PC10
9
PC11 (DISC)
10
PC12 (LED)
11
PD2
12
PB5
13
PB6
14
PA6
15
PB7
16
PB8
17
PB9
18
PA5
19
PC0
20
PC1
21
PB0
22
PA7
23
VBAT
24
PC13
25
RST
26
PB1
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