Capacitive Soil Sensor - Hardware details
Pinout
Pin Details
| Pin Marking | Pin Name | Description |
|---|---|---|
| GND | Ground | Common ground for power and signals. |
| AOUT | Analog Output | Analog voltage level corresponding to soil moisture. |
| VCC | Power | Supply voltage (3.3V to 5V). |
Dimensions
- PCB Dimensions: 109 × 22 mm (4.3 × 0.9 inch)
- Sensing Area: ~60 mm length
- Header Pin Holes: 1.5 mm diameter
- Mounting Hole: 3.2 mm diameter (M3 screw compatible)
- Board Thickness: ~1.6 mm
- Soldered boards are LEGO compatible! 🧱
Hardware repository
Schematics, KiCad files, Gerber files, and more can be found in the GitHub repository:
Capacitive Soil Sensor Hardware Repository
Open-source files for PCB design, schematics, and manufacturing.
The hardware repository contains everything you need to understand, modify, or manufacture the board.
CAD files
The .kicad_pro project contains both schematic and PCB layout. It can be edited using KiCad.
Schematic
Located in the outputs folder in .pdf format for easy reference.
BOM (Bill of Materials)
Includes a .csv file listing all components, values, and part numbers. An interactive HTML BOM is also included for visual identification of components on the board.
3D files
A .step file of the PCB is available for 3D inspection in CAD software.
Gerber files
Standard Gerber files and drill files are provided in a .zip, ready for fabrication.
- Copper layers (
.Cu.gbr) - Solder mask (
.Mask.gbr) - Silkscreen (
.Silkscreen.gbr) - Drill files (
.drl) - Edge cuts (
.Edge_Cuts.gbr) - Gerber job file (
.gbrjob)
Compliance
Files for regulatory compliance may be added in future revisions.