2 layers26.5 × 34.4 mm
PicoLoaderNSB
makeo/PicoLoader
A cheap and easy to install modchip for the Nintendo GameCube!
45 parts320GPL-2.0
2 layers88 × 17.1 mm
WindNerd Core Wind Sensor Board - Hardware, software and documentation
- Size
- 88 × 17.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 26
- Pads
- 109
- Tracks, vias
- 281, 66
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 20 Sep 2025
- Updated
- 1 Jun 2026
Overview
Core v1 is an open-source printed circuit board by windnerd-labs, from the windnerd-labs/Windnerd-Core repository on GitHub. It is a 2-layer board of 88 × 17.1 mm with 28 parts on 26 nets, routed with 281 tracks and 66 vias.
It is built around the TMR1208S, XC6206P332MR and 1N5819WS, with the SP0502BAHTG among its other parts. Its parts include 9 capacitors, 6 resistors, 4 ICs, 4 diodes and 4 connectors. It belongs with the home automation and IoT and sensors and measurement boards and the STM32 boards of this library.
Main components
4
TMR1208S
SOT-23-3SOT-23-3 Hall Switches ROHSmultidimensionHall Switches
XC6206P332MR
SOT-23-40℃~+85℃@(Ta) 1 1uA 200mA 3.3V 6V Fixed Over Current Protection Positive SOT-23-3L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky DiodesSP0502BAHTG
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.mdWindNerd Core - Open Source Sensor & Development Board for 3D-Printed Anemometers
Intro
The WindNerd Core is a full magnetic sensor board designed to fit inside the WindNerd 3D-printed-anemometer.
It is available as a kit, which includes the board and essential parts like magnets and bearings.
You can use it as a dedicated wind sensor module for your weather station, or as an Arduino compatible development board that can, for example:
- Control peripherals such as a LTE modem to send data remotely
- Drive LEDs that blink according to wind speed and direction
- Interface with other sensors (e.g., temperature, humidity, pressure)
For development, an ST-Link V2 (or compatible) dongle is recommended. However, alternative firmwares can also be uploaded via a serial bootloader.
Factory Firmware
The board is shipped with factory firmware that outputs instant wind values and averaged wind values over a serial connection.
The average power consumption is only 0.6mA (3.3V or 5V).
It can be connected to a computer using a USB-serial-TTL adapter or to any MCU board that provides a UART serial interface.
The baudrate is 9600bps 8N1. This configuration allows fairly long wiring, e.g. to reach the top of a pole.
Two types of messages are provided, the default speed unit is km/h and values are averaged for the last 10 minutes:
Instant wind (every 3 Sec)
WNI,<speed>,<direction 0-359>
ex: WNI,10.4,149
Average wind report (every minute)
WNA,<speed avg>,<direction avg 0-359>,<min speed>,<max speed>
ex: WNA,12.2,93,0,21.4
The factory firmware is based on an Arduino example sketch that can be easily tweaked to your own needs.
How to read serial data from another device
Arduino library
This repository provides an Arduino library that implements a driver for the magnetic sensors and computes wind speed and direction, exposing the values through a simple API.
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C4, C7, C8, C9 |
| 3 | 10K | Resistor_SMD:R_0603_1608Metric | R2, R3, R4 |
| 3 | 4.7uF 16V | Capacitor_SMD:C_0603_1608Metric | C2, C3, C5 |
| 2 | 2K | Resistor_SMD:R_0603_1608Metric | R5, R6 |
| 2 | GREEN-0805 | LED_SMD:LED_0805_2012Metric | D3, D4 |
| 1 | 180 | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | 1N5819WS | Diode_SMD:D_SOD-323 | D2 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | Conn_01x01_Pin | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J4 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | Conn_01x13_Pin | Connector_PinHeader_2.54mm:PinHeader_1x13_P2.54mm_Vertical | J2 |
| 1 | SP0502BAHT | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | STM32G031F8Px | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U2 |
| 1 | TMAG5273A1QDBVR | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | TMR1208S | Package_TO_SOT_SMD:SOT-23 | U4 |
| 1 | XC6206P332MR | Package_TO_SOT_SMD:SOT-23-3 | U1 |
| 1 | XH2.54-3P SMD | XH-connectors:ZX-XH2.54-3 | J1 |
The 27 most common of 28 parts.
Questions
How big is the Core v1 PCB?
It measures 88 × 17.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Core v1 use?
28 parts, built around the TMR1208S, XC6206P332MR, 1N5819WS and SP0502BAHTG. 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 Core v1 KiCad files?
From the windnerd-labs/Windnerd-Core repository on GitHub, at the commit this page was made from: the board is hardware/KiCad files/core-v1.kicad_pcb and its schematic hardware/KiCad files/core-v1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Core v1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask windnerd-labs before reusing the design.
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