Sensor Box for HLK-LD2450

Design
This casing for the LD2450 mmWave presence sensor was created because I wanted to monitor a hallway “around the corner” with an ESP32 – without having to use two ESPs. That's why I moved the sensor into a separate, additional casing.

What was especially important to me: The sensor should be adjustable and easily removable if needed. That's why there's a mount onto which the casing is simply slid. This mount can also be combined perfectly with my ball joint – ideal for precisely aligning the viewing angle.

You can find my ball joint here: Small Ball Joint

Assembly
When installing, always pay attention to the correct position of the sensor.
The version with melt-in threads is designed for M2 inserts. The lid reliably holds the sensor in position.

Printing
Printing is possible without support and is done quickly. Make sure you print the correct parts:

• There is a housing version for melt-in threads and one for self-tapping screws.
• Please also choose the appropriate variant for the lid.

Since the sensor requires a horizontal position (text on the circuit board must be readable), there are two lid variants:

• one for cable routing to the right
• one for cable routing to the left

Of course, you don't have to print each plate individually: simply slide the parts you need onto a print plate together – this saves time and is uncomplicated.

Links

Torx Screwdriver Set T6 T8 T9 T10 *: https://amzn.to/3MiOIrn

Brass Threaded Inserts - SET *: https://amzn.to/4pebgbF

Threaded Insert M2 *: https://amzn.to/43YQWCr

Threaded Inserts Soldering Tips Set *: https://amzn.to/49L1okG

Self-tapping Screw Hex M2x6mm *: https://amzn.to/44K8qmf

Torx Screw M2x6mm *: https://amzn.to/3MzTsZN

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Note

All links with "*" are Amazon affiliate links. You are supporting my work at no extra cost to you.

All devices were purchased and paid for by myself.