2 layers185.9 × 120 mm
KwartzLab SensorBoard Rev3-Panel
kwartzlab/Environmental-Sensor
The source for the environmental sensors used at Kwartzlab
200 parts3
2 layers24 × 131 mm
W sense
DaniloAny/w-sense2esp32-c3 based soil moisture sensor
- Size
- 24 × 131 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 37
- Pads
- 117
- Tracks, vias
- 107, 11
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 25 Jun 2026
- Updated
- 29 Jun 2026
Overview
W sense is an open-source printed circuit board by DaniloAny, from the DaniloAny/w-sense repository on GitHub. It is a 2-layer board of 24 × 131 mm with 30 parts on 37 nets, routed with 107 tracks and 11 vias.
It is built around the ESP32-C3-MINI-1, LL4148 and MMBT3906, with the SS14 among its other parts. Its parts include 8 capacitors, 6 resistors, 3 diodes, 2 switches and 1 IC. It belongs with the ESP32 and RISC-V boards of this library.
Main components
4ESP32-C3-MINI-1
--40℃~+81℃ -89dBm 2.4GHz 350mA 3V~3.6V 82mA ESP32-C3 Chip On-board PCB Antenna UART - WiFi Modules ROHSRF CrazyWiFi Modules
LL4148
LL-341 Independent 1V@10mA 200mA 4A 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHSMDDSwitching Diodes
MMBT3906
SOT-23-55℃~+150℃ 1 PNP 100 100nA 200mA 200mW 300MHz 300mV 40V 5V PNP SOT-23 Bipolar (BJT) ROHSTWGMCBipolar (BJT)
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdW-SENSE
-
the w-sense is a soil moisture sensor that uses a esp32-c3-mini-1 module as its brains.
-
currently this project is in heavy work in progress.
-
i hope you like it!
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C5, C6, C8, C9 |
| 2 | 10K | Resistor_SMD:R_0402_1005Metric | R2, R11 |
| 2 | 10K | PCM_fab:R_0603 | R5, R10 |
| 2 | 18pF | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | SMD_4.6x2.8mm_h1.9mm | PCM_SparkFun-Switch:Push_SMD_4.6x2.8mm_h1.9mm | SW1, SW2 |
| 1 | 0R | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 1nF | Capacitor_SMD:C_0402_1005Metric | C12 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 32.768kHz | PCM_SparkFun-Clock:Crystal_SMD_3.2x1.5mm | Y1 |
| 1 | 3V3 | TestPoint:TestPoint_Pad_D1.0mm | TP6 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_3002_1x2032 | BT1 |
| 1 | ESP32-C3-MINI-1 | PCM_Espressif:ESP32-C3-MINI-1 | U2 |
| 1 | GND | TestPoint:TestPoint_Pad_D1.0mm | TP5 |
| 1 | LED_0402 | PCM_LED_SMD_AKL:LED_0402_1005Metric | LED1 |
| 1 | LL4148 | PCM_Diode_SMD_AKL:D_MiniMELF | D2 |
| 1 | LOGO | HORTIKA:logo | G*** |
| 1 | MMBT3906 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | MTCK | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | MTDI | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | MTDO | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
| 1 | MTMS | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | SS14 | Diode_SMD:D_0603_1608Metric | D1 |
Questions
How big is the W sense PCB?
It measures 24 × 131 mm and has 2 copper layers, 1.6 mm thick.
What parts does the W sense use?
30 parts, built around the ESP32-C3-MINI-1, LL4148, MMBT3906 and SS14. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the W sense KiCad files?
From the DaniloAny/w-sense repository on GitHub, at the commit this page was made from: the board is kicad/w-sense.kicad_pcb and its schematic kicad/w-sense.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the W sense design in my own project?
Its repository states no licence, so its author keeps all rights: ask DaniloAny before reusing the design.
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