EVK BMD-345 - User guide
UBX-19051533 - R01
Hardware description
Page 14 of 27
2.12
Header pin-out
Headers J5 - J9 and J11 break out the IO signals from the BMD-345 module on 2.54 mm pitch
headers.
Figure 14: EVK BMD-345 evaluation board pin-out
⚠
The I/O pins of the BMD-345 EVK are not 5 V tolerant. Arduino Uno® style shields shall be
configured to use +3.3 V DC (VSHLD) as the I/O voltage reference.
The tables below are presented in order of the headers on the BMD-345-Eval board.
Pin
Pin name
nRF52840
Function
1
VSHLD
-
+3.3 V Shield Power
2
VSHLD
-
+3.3 V Shield Power
3
RESET
P0.18
RESET_N / GPIO
4
VSHLD
-
+3.3 V Shield Power
5
5V0
-
+5.0 V USB Power
6
GND
-
Ground
7
GND
-
Ground
8
-
-
No connection
Table 4: Header J5
