APEX ORIN NANO GPIO Digital Input#
Hardware Connection#
PIN Definition#
接口名称 |
DB9针脚序号 |
接口说明 |
设备节点 |
|---|---|---|---|
DI_0 |
1 |
GPIO IN |
/dev/gpio/di0 |
DI_1 |
2 |
GPIO IN |
/dev/gpio/di1 |
DO_0 |
3 |
GPIO OUT |
/dev/gpio/do0 |
DO_1 |
4 |
GPIO OUT |
/dev/gpio/do1 |
GND |
6-9 |
地 |
DO Hardware Specification#
Description |
|
|---|---|
Vref |
Voltage to be supplied externally at the user side. |
Passive Load |
E.g. LED, Relay, Solenoid Valve. |
Active Sourcing Input |
Active Sourcing Input, DI of PLC, e.g. |
Specification |
|
|---|---|
Vref |
3.3~36V |
DO Usage#
Digital output usage sample as below
# Switch to root
sudo su -
# Set High output(DO)
echo 1 > /dev/gpio/<device node name>/value
# sample: echo 1 > /dev/gpio/do0/value
# Set Low output(DO)
echo 0 > /dev/gpio/<device node name>/value
# sample：echo 1 > /dev/gpio/do0/value