Presence Sensor - ESP32-C3 Super Mini + LD2410
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This is a complete chasis and wall mount for presence sensor LD2410 soldered directly to ESP32-C3 Super Mini.
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This is a complete chasis and wall mount for presence sensor LD2410 soldered directly to ESP32 C3.
To solder LD2410 to ESP32-C3 Super Mini - just remove middle pin from the sensor (digital out - not needed as UART communication is used). If not removed it would interfere with 3V3 on ESP32. This way you will have 5V, GND, NC, GPIO4, GPIO3 on ESP and you can map GPIO4 and GPIO3 to UART.
Radar sensor can be blocked by just a few layers of plastic, so the only thing that covers it, is a separate single layer plate. Watch out for white PLA - it might use titanium for coloring and metal particles are no good for radio waves.
Tiny holes in headMount, mountPlateCover, mountLink and header are for a small piece of filament used as a locating pin during the glue-up (CA). Rest of the model is press-fit.
It also have through hole for passing supply cable.
You can regulate angle of final mounted sensor as it uses links similar to ones used for coolant.
Easiest way to install:
assemble the radar head
make sure supply cable goes through the links
mount mountplate to the wall (center screw or double sided tape) - there is a hole for a supply cable
connect cables from ESP to the supply using any method
screw in mountPlateCover
as a last step connect links (mountLink and headMount)
It is important to do the step 6 as last, to avoid twist on the supply cable.
No supports needed for printing. Standard PLA + 0.4 nozzle + 0.2 layer height.