2 layers16 × 45.7 mm
Powerboard v1
blurbler2/powerboard
Tree Sentinel powerboard: standalone TPS62842 3.3 V buck module for 4xAA NiMH, breadboard format (KiCad 10)
25 parts
2 layers40 × 50 mm
Sensor Station
BeeEyeIoT/sensor-station-boardComplete KiCAD project for a sensor data collection station
- Size
- 40 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 59
- Pads
- 177
- Tracks, vias
- 344, 67
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Apr 2026
- Updated
- 10 Apr 2026
Overview
Sensor Station is an open-source printed circuit board by BeeEyeIoT, from the BeeEyeIoT/sensor-station-board repository on GitHub. It is a 2-layer board of 40 × 50 mm with 39 parts on 59 nets, routed with 344 tracks and 67 vias.
It is built around the WIO-SX1262, DS2484R+T and TPS62842DGRR, with the RV-3028-C7 and SP0502BAHTG among its other parts. Its parts include 9 resistors, 7 connectors, 6 capacitors, 5 ICs and 4 diodes. It belongs with the sensors and measurement boards of this library.
Main components
5WIO-SX1262
SMD,11.6x11mmSMD,11.6x11mm LoRa Modules ROHSSeeedLoRa Modules
DS2484R+T
SOT-23-6-40℃~+85℃ 1.71V~5.25V 300uA I2C SOT-23-6 Interface - Specialized ROHSMaxim Integrated (Analog Devices)Interface - Specialized
TPS62842DGRR
HVSSOP-8-EP-0.65mm-40℃~+125℃@(TJ) 1 1.8MHz 1.8V~6.5V 2.4V~3.6V 60nA 750mA Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Output discharge、Cycle-by-cycle current limiting Step-down type Yes HVSSOP-8-EP-0.65mm DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
RV-3028-C7
DFN-8(1.5x3.2)DFN-8(1.5x3.2) Real Time Clocks ROHSMicro CrystalReal Time Clocks
SP0502BAHTG
SOT-23-40℃~+125℃ 100nA 2 30pF 5.5V 8.5V IEC 61000-4-2 TVS Unidirectional SOT-23 ESD and Surge Protection (TVS/ESD) ROHSLittelfuseESD And Surge Protection (TVS/ESD)
README
README.mdBeeEye Board
BeeEye Board is a complete KiCad project for the BeeEye Station — a system designed to collect sensor data via 1-Wire and BLE, and transmit it over LoRa.
Firmware for this board is available here:
👉 https://github.com/Sleepyowl/BeeEyeFirmware
Features
- nRF52811 SoC (BLE support)
- SX1262 LoRa module
- External RTC with supercapacitor backup
- External I²C-to-1-Wire bridge
- Battery voltage sensing (high-side gated divider)
- 3× 1-Wire connectors with TVS protection
- UART connector
- I²C connector
- SWD interface: Tag-Connect TC2030 (6-pin, no legs)
Known Issues
- No reverse polarity protection
- No overvoltage or overcurrent protection
- No TVS protection on UART or I²C connectors
Manufacturing Notes
Working prototypes were manufactured via PCBWay using the parameters below. For production or panelized versions, ENIG surface finish is recommended.
| Parameter | Value |
|---|---|
| Layers | 2 |
| Thickness | 0.8 mm |
| Min Track / Spacing | 4 / 4 mil |
| Min Hole Size | 0.3 mm |
| Surface Finish | HASL (Lead-Free) |
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | MH1, MH2, MH3, MH4 |
| 3 | 100nF | Capacitor_SMD:C_0805_2012Metric | C2, C4, C6 |
| 3 | SP0502BAHTG | Package_TO_SOT_SMD:SOT-23-3 | D2, D3, D4 |
| 2 | 100K | Resistor_SMD:R_0805_2012Metric | R6, R7 |
| 2 | 330 | Resistor_SMD:R_0805_2012Metric | R5, R8 |
| 2 | 4.7K | Resistor_SMD:R_0805_2012Metric | R10, R11 |
| 1 | 10uF | Capacitor_SMD:C_1206_3216Metric | C3 |
| 1 | 11mF | Capacitor_SMD:C_1210_3225Metric | C1 |
| 1 | 1W #1 | Connector_JST:JST_SH_BM03B-SRSS-TB_1x03-1MP_P1.00mm_Vertical | J5 |
| 1 | 1W #2 | Connector_JST:JST_SH_BM03B-SRSS-TB_1x03-1MP_P1.00mm_Vertical | J6 |
| 1 | 1W #3 | Connector_JST:JST_SH_BM03B-SRSS-TB_1x03-1MP_P1.00mm_Vertical | J7 |
| 1 | 2.2u | footprints:IND_DFE2016_MUR | L1 |
| 1 | 220K | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | 330K | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 4.7uF | Capacitor_SMD:C_1206_3216Metric | C5 |
| 1 | 52.3K | Resistor_SMD:R_1206_3216Metric | R2 |
| 1 | BMD-360-A-R | footprints:BMD-360_UBL | U2 |
| 1 | Batt | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J1 |
| 1 | DS2484R | Package_TO_SOT_SMD:SOT-23-6 | U5 |
| 1 | I^2C | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J4 |
| 1 | LED | LED_SMD:LED_1206_3216Metric | D1 |
| 1 | RV-3028-C7 | Package_SON:MicroCrystal_C7_SON-8_1.5x3.2mm_P0.9mm | U4 |
| 1 | SERIAL | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J3 |
| 1 | SWD TC2030 | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J2 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_Omron_B3FS-100xP | SW1 |
| 1 | TP0610T | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | TPS62842DGRR | footprints:VSSOP_42DGRR_TEX | U3 |
| 1 | Wio-SX1262 | footprints:Wio-SX1262 PCB Package | U1 |
Questions
How big is the Sensor Station PCB?
It measures 40 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sensor Station use?
39 parts, built around the WIO-SX1262, DS2484R+T, TPS62842DGRR and RV-3028-C7. 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 Sensor Station KiCad files?
From the BeeEyeIoT/sensor-station-board repository on GitHub, at the commit this page was made from: the board is Sensor Station.kicad_pcb and its schematic Sensor Station.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sensor Station design in my own project?
Its repository states no licence, so its author keeps all rights: ask BeeEyeIoT before reusing the design.
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