JetBox-FloydSC User Manual rev 0.1
Page 22
10. DIGITAL I/O
JetBox-FloydSC system provides 8 GPIOs exposed on the front panel on screw terminals. The pinout numbering
of the screw terminals is as shown below:
Figure 10
JetBox-FloydSC DIO Screw Terminal Pin Numbering
The pinouts of the screw terminals are as given below:
1
2
3
4
5
6
7
8
9
10
11
DIO 0
DIO 1
DIO 2
DIO 3
DIO 4
DIO 5
DIO 6
DIO 7
+3.3V
or +5V
Ground
Ground
.
The DIOs on the Floyd SC Carrier card is realized using I2C to GPIO expander.
The I2C GPIO expander can be addressed at 0x22 on the I2C bus. The I2C bus number depends upon the
module installed as tabulated below:
NVIDIA Jetson Nano
NVIDIA Jetson Xavier NX
I2C Bus Device
/dev/i2c-1
/dev/i2c-8
