Head Compute Unit Setup
Assemble the Head Board base, Raspberry Pi 5, and Media HAT Board top into the Head Compute Unit.
The Head Compute Unit consists of the at the base, the , and the on top. The provides the buzzer and helps prevent brownouts.
Parts needed
| Part | Count |
|---|---|
| head carrier | 1 |
| camera module | 1 |
| 1 | |
| 1 | |
| 1 | |
| head base | 1 |
| 8 | |
| 4 | |
| 4 | |
| USB-A to JST-ZHR4 cable (highlighted in yellow) | 1 |
| 1000 mm XT30 power cable (highlighted in red) | 1 |
| 1000 mm Ethernet cable (highlighted in blue) | 1 |
| 100 mm USB-C to USB-A cable (highlighted in purple) | 1 |
| 120 mm JST-XH to JST-XH cable (highlighted in green) | 1 |
| 300 mm single-ended JST-XH cable (highlighted in orange) | 1 |
You will also need flush cutters to trim the pins. The WAGO for the speaker cable is connected later.
Instructions
Take part , which is the camera module, and fit it into the square holes on part . Make sure that the camera module has its port at the bottom, as shown in the visualization below.
Take 4 of and tighten them into the 4 holes to secure the camera module to part .
Take the and cut all the bottom pins using the flush cutters, as shown in the visualization.
After the bottom pins of the are trimmed flush, put it on the platform of part . Make sure that the 4 mounting holes align with each other.
Take 4 of and tighten them into the 4 threaded holes on top of the to secure it to part .
Take the and align its 4 mounting corners with the 4 .
Take 4 of to secure the to the 4 .
Take the and install it onto the pins according to the visualization below.
Take part and put it on a flat surface with the inside of the part facing toward the ceiling.
Take the provided USB-A to JST-ZHR4 cable (highlighted in yellow) and plug the JST connector end into the camera module . Then, route the cable through part until the USB-A connector is accessible through the back of the head.
Take the provided 1000 mm XT30 power cable (highlighted in red) and plug the male connector into the as shown in the visualization below. Then, route the cable through part as above, but through the big gap at the back of the head instead.
Then, align the 4 mounting holes on part with those on part according to the visualization below.
Take 4 of and tighten them into the 4 threaded holes on part to secure it to part .
Take the USB connector end of the USB-A to JST-ZHR4 cable (highlighted in yellow) and plug it into the USB port as shown in the visualization below.
Take the 1000 mm Ethernet cable (highlighted in blue) and plug one end into the Ethernet port as shown. Then, route the cable through the gap at the back of the head.
Take the 100 mm USB-C to USB-A cable (highlighted in purple) and connect the USB-C port to the USB port as shown in the visualization below.
Take the 120 mm JST-XH to JST-XH cable (highlighted in green) and connect the JST port to the JST port as shown in the visualization below.
Take the 300 mm single-ended JST-XH cable (highlighted in orange) and plug it into the JST port as shown below. At the bare cable end, we will connect it to a WAGO, which will be connected to the speaker cable later on.
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