Datasheet

Jetson Nano Developer Kit DA_09402_004 | 5
• Pins 3 and 4 put the developer kit into Force Recovery Mode if they are
connected when it is powered on.
• [J41] 40-pin expansion header includes:
• Power pins.
Two 3.3V power pins and two 5V power pins. These are not switchable; power is
always available when the developer kit is connected to power.
Two 5V pins can be used to power the developer kit at 2.5A each.
• Interface signal pins.
All signals use 3.3V levels.
By default, all interface signal pins are configured as GPIOs, except pins 3 and 5
and pins 27 and 28, which are I2C SDA and SCL, and pins 8 and 10, which are
UART TX and RX. L4T includes a Python library, Jetson.GPIO, for controlling
GPIOs. See /opt/nvidia/jetson-gpio/doc/README.txt on your Jetson
system for details.
L4T includes the jetson-io utility to configure pins for SFIOs. See
“Configuring the 40-pin Expansion Header” in the L4T Development Guide for
more information.
• [J43] RJ45 connector for gigabit Ethernet.
• [J44] Carrier board rev A02 only: 3.3V serial port header; provides access to the
UART console.
• [J48] Enables either J28 Micro-USB connector or J25 power jack as power source for
the developer kit. Without a jumper, the developer kit can be powered by J28 Micro-
USB connector. With a jumper, no power is drawn from J28, and the developer kit
can be powered via J25 power jack.
• [J49] Carrier board rev B01 only: Camera connector; same as [J13].
• [J50] Carrier Board Rev B01 only: 12-pin button header; brings out system power,
reset, UART console, and force recovery related signals:
• Pin 1 connects to LED Cathode to indicate System Sleep/Wake (Off when system
is in sleep mode).
• Pin 2 connects to LED Anode.
• Pins 3 and 4 are respectively UART Receive and Send.
• Pins 5 and 6 disable auto power-on if connected.
• Pins 7 and 8 reset the system if connected when the system is running.
• Pins 9 and 10 put the developer kit into Force Recovery Mode if they are
connected when it is powered on.
• Pins 11 and 12 initiate power-on when connected if auto power-on is disabled.