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Jetson HAT Design

Idea

The idea of a Jetson HAT comes from the common name of Raspberry Pi HATs (Hardware Attached on Top).

Goals

  • Create a PCB HAT for the Jetson carrier.
  • Create a compact and versatile board to interface sensors with.
  • Create a simple power distribution system for sensors and for the Jetson carrier board.

 

Design

Physical

Jetson TX2 Carrier
JTX2_Devkit.png
Overall size

The Jetson TX2 carrier board has overall dimensions of 170 mm x 170 mm (6.7 in x 6.7 in). The mounting screws for the carrier board are also located at three of the four corners, forcing the use of a very large PCB for the HAT. We felt that matching the size of the carrier board would also help us with laying out all the components we want to include on the PCB.

Interferences

The Jetson TX2 carrier board has a few ports that cannot be blocked by the HAT design. These include:

  • SATA interface
  • PCIE interface
  • Power and reset buttons

The carrier board also has a large heatsink that protrudes from the middle of the board to cool the TX2 module. This required us to make a large cutout in the center of the PCB.

 

Electrical

Power

 

Communication

 

Thermal

Cooling

 
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