2. Autonomy Elements¶
In the second part of the hardware setup we start preparing the autonomy elements for our F1TENTH car. The complete process for the second hardware part can be watched in this video tutorial too.
1. Preparing the NVIDIA Jetson NX¶
When you purchase a NVIDIA Jetson NX, it is attached to small plastic development board. In order to use it on the car, you will need to unscrew the Jetson NX and its Wi-Fi antenna from the development board. First of all unbox your NVIDIA Jetson NX.
When you look on the Jetson NX from above you will see four screws (see red circles in the image). Please unscrew all of these 4 screws.
Afterwards you can turn the Jetson NX on the other side. You will see the plastic development board is still attached because of the two antenna cables.
The two antenna cables are clipped to the Jetson NX. You have to unclip both of them. You can either use your fingers are lift them with a flat screwdriver.
Afterwards your NVIDA Jetson NX is seperated from the developer board. This is the version you can now screw to the platform deck.
2. Preparing the WiFi Antenna¶
In the next step we are providing both Wifi Antennas so we can mount them in the later steps quick and easy. First of all unpackage your antennas and demount the cables from the antennas. Remove the two brass-colored nuts holding the antennas to the L-shaped bracket, and then remove the two antennas from the bracket.
Afterwards we need to Screw the Standoffs onto the antenna bracket. Using a Phillips screwdriver, thread the two screws you saved earlier completely into the bracket as pictured below. Attach two M3 FF 45mm standoffs to the opposite ends of the screws and hand-tighten them until they won’t turn anymore. Use the pliers to tighten the standoffs more while you hold the head of the screw in place using the screwdriver.
Once you’ve done these steps, place the antennas and washers back into the bracket, and tighten the brass nuts onto the threaded connectors again. It helps to use two pairs of pliers: one to hold the rear nuts in place and another to unscrew the nuts on the end with the antenna connectors.
We can now move on to mounting all of the autonomy elements onto the Upper Level Chassis in the next section. Second accomplishment completed.
DEPRECATED: Preparing the NVIDIA Jetson TX2¶
In this section we are describing how to use the NVIDIA Jetson TX2 as a main ECU for the F1TENTH vehicle. This setup is deprecated and no longer recommended.
1. Removing the NVIDIA Jetson TX2 Developer Board
When you purchase a Jetson TX2, it is attached to a development board. In order to use it on the car, you will need to unscrew the Jetson TX2 and its Wi-Fi antenna from the development board.
Before you remove the antenna, you will need to remove the bottom plate from the development board. Remove the four screws marked below and lift the development board away from the plate.
Next, remove the Wi-Fi antenna by unscrewing the two screws marked below. Keep the screws in a safe place, as you’ll use them in a bit to attach the antennas to standoffs.
Remove the two brass-colored nuts holding the antennas to the L-shaped bracket, and then remove the two antennas from the bracket. It helps to use two pairs of pliers: one to hold the rear nuts in place and another to unscrew the nuts on the end with the antenna connectors.
Using a Phillips screwdriver, thread the two screws you saved earlier completely into the bracket as pictured below. Attach two M3 FF 45mm standoffs to the opposite ends of the screws and hand-tighten them until they won’t turn anymore. Use the pliers to tighten the standoffs more while you hold the head of the screw in place using the screwdriver. Once you’ve done these steps, place the antennas and washers back into the bracket, and tighten the brass nuts onto the threaded connectors again.
Unplug the Jetson TX2’s fan and remove the Jetson TX2 from the development board by using a T3 Torx screwdriver to unscrew the Jetson TX2 (the large silver heat sink), and then pull up gently to detach it from the development board. Keep the Jetson TX2 in a safe place while you attach the antennas to the power board.
2. Attaching the Orbitty to the TX2
Seat the TX2 Module connector to the Orbitty board connector like so:
Put an M3 x 20mm screw through one of the Orbitty mount holes followed by one 8mm nylon spacer then 35mm FF M3 standoffs. Repeat for the remaining three mounting holes.
The results should look like this:
Plug the TX2 fan connector into the Orbitty board.