2 layers38.1 × 101.6 mm
2 layers25.2 × 22.8 mm
Sapflow gauge
21941211/WiLoFull documentation of the WiLo (Wireless Logger) LoRa enabled environmental monitoring logger.
- Size
- 25.2 × 22.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 11
- Pads
- 36
- Tracks, vias
- 150, 9
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 16 Apr 2025
- Updated
- 23 Jun 2026
Overview
Sapflow gauge is an open-source printed circuit board by 21941211, from the 21941211/WiLo repository on GitHub. It is a 2-layer board of 25.2 × 22.8 mm with 11 parts on 11 nets, routed with 150 tracks and 9 vias.
It is built around the DMN3051L.
Main components
1README
README.mdWiLo
Full documentation of the WiLo (Wireless Logger) LoRa enabled environmental monitoring logger.
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | 0.1uF, 0.1uF |
| 2 | 5K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | 5K, 5K |
| 2 | HDC2080 | Package_SON:Texas_PWSON-N6 | TEMP1, TEMP2 |
| 1 | 100 | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | 100 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | 10K |
| 1 | 230 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | 230 |
| 1 | Conn_01x05_Female | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | |
| 1 | DMN3051L | Package_TO_SOT_SMD:SOT-23 | DMN3051L |
Questions
How big is the Sapflow gauge PCB?
It measures 25.2 × 22.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sapflow gauge use?
11 parts, built around the DMN3051L. 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 Sapflow gauge KiCad files?
From the 21941211/WiLo repository on GitHub, at the commit this page was made from: the board is SU_Forestry_SapFlow/dotmote_labs/sapflow-master/hardware/sapflow_gauge/kicad/sapflow_gauge/sapflow_gauge.kicad_pcb and its schematic SU_Forestry_SapFlow/dotmote_labs/sapflow-master/hardware/sapflow_gauge/kicad/sapflow_gauge/sapflow_gauge.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sapflow gauge design in my own project?
Its repository states no licence, so its author keeps all rights: ask 21941211 before reusing the design.
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