2 layers33.7 × 97.8 mm
HAN ESP TSS721
UtilitechAS/amsreader-firmware
ESP8266 and ESP32 compatible firmware to read, interpret and publish data to MQTT from smart electrical meters, both DLMS and DSMR is supported
29 parts470
2 layers40 × 72 mm
SoilMoistureSensor
SabarnaMahendran/soil_pcb- Size
- 40 × 72 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 9
- Pads
- 74
- Tracks, vias
- 52, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 1 Apr 2025
- Updated
- 1 Apr 2025
Overview
SoilMoistureSensor is an open-source printed circuit board by SabarnaMahendran, from the SabarnaMahendran/soil_pcb repository on GitHub. It is a 2-layer board of 40 × 72 mm with 15 parts on 9 nets, routed with 52 tracks and 0 vias.
It is built around the ESP-12E. Its parts include 5 resistors, 2 capacitors, 1 IC, 1 transistor and 1 connector. It belongs with the ESP8266 boards of this library.
Main components
1Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole_2.2mm_M2_Pad_Via | MountingHole:MountingHole_2.2mm_M2_Pad_Via | M2, M2, M2, M2 |
| 2 | 10kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R4 |
| 1 | 100kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 1 | 10µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 1kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 220kΩ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 2N2222 | Package_TO_SOT_THT:TO-92_HandSolder | Q1 |
| 1 | 3.2V | Andys-Footprints:BatteryHolder_Keystone_2460_1xAA-removed-holes | BT1 |
| 1 | Conn_01x03_Male | Andys-Footprints:PinHeader_1x03_P2.54mm_Vertical-Fixed-SilkScreen | J1 |
| 1 | ESP-12E | Andys-Footprints:ESP-12-Socket | U1 |
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Questions
How big is the SoilMoistureSensor PCB?
It measures 40 × 72 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SoilMoistureSensor use?
15 parts, built around the ESP-12E. 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 SoilMoistureSensor KiCad files?
From the SabarnaMahendran/soil_pcb repository on GitHub, at the commit this page was made from: the board is Soil sensor/SoilMoistureSensor.kicad_pcb and its schematic Soil sensor/SoilMoistureSensor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SoilMoistureSensor design in my own project?
Its repository states no licence, so its author keeps all rights: ask SabarnaMahendran before reusing the design.