Soil moisture2
About the Soil moisture2 PCB
Soil moisture2 is an open source PCB design by acolomitchi, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 3.1 × 3.1 mm, with 23 components from 15 distinct parts.
Other key parts include the LM555N. By type, the board carries 6 resistors, 2 connectors, 1 IC and 1 transistor.
From the project
Files for the capacitive soil moisture (2 kicad projects and 1 arduino sketch with dependencies)
Electronics - square1-planecap - the Kicad project for the coplanar capacitive probe. The Gerber files are in ./square1-planecap/print/grbl - soil-moisture2 - the Kicad project for the soil moisture controller. The gerber files are in ./soil-moisture2/print/grbl
Arduino sketch and dependecies - in sketch-and-deps - libs - two libraries that would need installing in Arduino-IDE - doc - an Excel file with the configuration modes - soil-cap-logic.ino - the sketch - I'll codedoc it some time soon
Main components on the Soil moisture2
Soil moisture2 bill of materials (BOM)
23 components, 15 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM555N | DIP-8_W7.62mm | U1 |
| 1 | 2N2222 | TO-92_Inline_Wide | Q1 |
| 1 | Digital | Socket_Strip_Arduino_1x12 | P1 |
| 1 | Analog | Socket_Strip_Arduino_1x12 | P4 |
| 2 | CONN_01X02 | KF301-2P-B | CONN_PUMP1, CONN_PWR1 |
| 4 | CONN_01X02 | Pin_Header_Straight_1x02 | CONN_PUMP2, CONN_PWR2, CONN_probe1, CONN_supply1 |
| 2 | CONN_01X04 | Pin_Header_Straight_1x04 | CONN_settings1, Pprog0 |
| 1 | CP1 | C_Radial_D5_L6_P2.5 | C_filtr1 |
| 1 | CP1 | C_Radial_D6.3_L11.2_P2.5 | C_filtr2 |
| 1 | D_Small | Diode_DO-41_SOD81_Vertical_AnodeUp | D_flywh1 |
| 1 | CONN_01X01 | Pin_Header_Straight_1x01 | Pgnd0 |
| 1 | POT | RV-bline | RV1 |
| 1 | R | Resistor_Horizontal_RM10mm | R1 |
| 1 | 470R | Resistor_Vertical_RM5mm | Rb1 |
| 4 | 100R | Resistor_Horizontal_RM10mm | Rgnd0, Rgnd1, Rgnd2, Rgnd3 |
Soil moisture2 design files
The KiCad project lives in the acolomitchi/cap-soil-moisture-v2 repository on GitHub; these links point at the commit this page was built from.
Soil moisture2: common questions
How big is the Soil moisture2 PCB?
The Soil moisture2 measures 3.1 × 3.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Soil moisture2?
23 components, from 15 distinct parts. The full bill of materials is listed on this page.
Where can I download the Soil moisture2 design files?
From the acolomitchi/cap-soil-moisture-v2 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Soil moisture2 design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
