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ASSEMBLY.md

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Assembly instructions

Overview

Parts of the mounting frame:

  • The base plate for the sensor board in the top left.
  • The slot for the frame stand in the top right.
  • The mounting holes for the daughter board of the display in the upper mid.
  • The mounting holes for the Raspberry Pi in the lower half.
  • Two strain reliefs in the upper right and bottom mid.

Step 1

Push 8 M2.5 screws through the mounting holes from the bottom side up.

The outcome should look like this:

Step 2

Screw 8 M2.5 standoffs onto the screws.

The outcome should look like this:

Step 3

Solder the 4x1 pin-header to the back side of the sensor board.
The sensor's actual antenna is facing down.

Step 4

Connect the boards (board pin numbering, not BCM) using 6 DuPont cables.

  • Raspberry Pi to radar sensor board:
    2 - VIN
    6 - GND
    11 - OUT
    13 - CDS
  • Raspberry Pi to HDMI board:
    12 - PWM
    14 - GND

Mount the Raspberry Pi and sensor board onto the standoffs and tighten them down with 8 M2.5 nuts.

The outcome should look like this:

Step 5

Place the sensor board onto the two tiny standoffs of the frame using the central mounting holes.
Tie the board to the base plate using a cable tie. There's a gap for the tie on the underside of the frame.

The outcome should look like this:

Step 6

Connect the HDMI ports of the Raspberry Pi and the daughter board of the display with the HDMI cable.

The outcome should look like this:

Step 7

Using the USB cable, connect the USB-C port of the HDMI board to a USB-A port of the Raspberry Pi.
Secure it to the frame using the strain relief. You might want to use a shorter cable than I did.

The outcome should look like this:

Step 8

Connect the HDMI-FPC cable to the display with the lettering on the cable facing towards you.
These cables are susceptible to breaking, so you might want to consider a tutorial on Youtube.

Put the frame over the display passing the FPC table up through the frame.

Connect the FPC cable to the HDMI board.

Step 9

Connect the Micro-USB power cord to the Raspberry Pi and secure it to the strain relief using a cable tie.

The outcome should look like this:

Step 10

Sand down the skewed part of the frame stand so it can fit in the mounting slot.

The outcome should look like this:

You can now go on with the software installation.