4 layers32 × 48.8 mm
4 layers22.4 × 70.5 mm
Gr25 nodes
Gaucho-Racing/Sensor-NodesGR25 Sensor Nodes
- Size
- 22.4 × 70.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 76
- Nets
- 109
- Pads
- 325
- Tracks, vias
- 697, 95
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 Jul 2024
- Updated
- 11 Mar 2026
Overview
Gr25 nodes is an open-source printed circuit board by Gaucho-Racing, from the Gaucho-Racing/Sensor-Nodes repository on GitHub. It is a 4-layer board of 22.4 × 70.5 mm with 76 parts on 109 nets, routed with 697 tracks and 95 vias.
It is built around the AMS1117-3.3, B5819W and S9013, with the WS2812B among its other parts. Its parts include 28 capacitors, 18 resistors, 7 diodes, 6 ICs and 3 connectors. It belongs with the STM32 boards of this library.
Main components
4
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
S9013
SOT-23-55℃~+150℃ 1 NPN 100nA 120 150MHz 25V 300mW 500mA 5V 600mV NPN SOT-23 Bipolar (BJT) ROHSTWGMCBipolar (BJT)
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.mdSensor Node hardware and software for GR25
Hardware
The Hardware is split into a couple of folders and have Kicad projects that relate to the Sensor Nodes. This includes random projects and some hardware that might have been usefull.
Software
Includes software for the Sensor Nodes
Compilation:
To compile and be able to debug the project you need the following:
- CMAKE
- arm-none-eabi-gcc
- openocd
- ninja
- VSCode CMAKE extension
- VSCode Cortex Debug extension
Make sure cmake, arm tolchian, openocd,and ninja are added to path
To check the version run:
- cmake --version
- arm-none-eabi-gcc --version
- openocd --version
- ninja --version
After everything is installed you should be able to follow the VSCode UI to compile and debug.
Parts
76| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100nF | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C6, C8, C10, C11, C13, C14, C15, C16, C17, C20, C25, C28 |
| 8 | ~ | TestPoint:TestPoint_Pad_1.0x1.0mm | T1, T2, T3, T4, T5, T6, T7, T8 |
| 4 | 220 | Resistor_SMD:R_0402_1005Metric | R8, R9, R15, R16 |
| 3 | 10k | Resistor_SMD:R_0402_1005Metric | R2, R12, R18 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric | C21, C22, C23 |
| 3 | 22uF | Capacitor_SMD:C_0805_2012Metric | C24, C26, C27 |
| 3 | RED | LED_SMD:LED_0603_1608Metric | D2, D4, D6 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C12, C19 |
| 2 | 20pF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C7, C18 |
| 2 | 4k7 | Resistor_SMD:R_0402_1005Metric | R5, R6 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R7, R10 |
| 2 | Conn_01x27_Socket | Connector_PinHeader_2.54mm:PinHeader_1x27_P2.54mm_Vertical | J2, J3 |
| 2 | MCP2542FDxMF | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3, U4 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric | C9 |
| 1 | 1K5 | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 1N5819 | Diode_SMD:D_SOD-323_HandSoldering | D5 |
| 1 | 39k | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 4.7uH | Inductor_SMD:L_Cenker_CKCS6020 | L2 |
| 1 | 4.7uH | Capacitor_SMD:C_1206_3216Metric | L1 |
| 1 | 56k2 | Resistor_SMD:R_0402_1005Metric | R17 |
| 1 | 8MHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | B5819W | Diode_SMD:D_SOD-123 | D3 |
| 1 | BLUE | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | Conn_01x06_Socket | Connector_JST:JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J1 |
| 1 | DNP | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | LOGO | LOGO:grloho | G*** |
| 1 | S9013 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | STM32F103C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | STM32G474RBTx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U2 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
| 1 | TPS563200 | Package_TO_SOT_SMD:SOT-23-6 | U6 |
| 1 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D7 |
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Questions
How big is the Gr25 nodes PCB?
It measures 22.4 × 70.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Gr25 nodes use?
76 parts, built around the AMS1117-3.3, B5819W, S9013 and WS2812B. 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 Gr25 nodes KiCad files?
From the Gaucho-Racing/Sensor-Nodes repository on GitHub, at the commit this page was made from: the board is Hardware/Sensor_Nodes_V3/gr25_nodes.kicad_pcb and its schematic Hardware/Sensor_Nodes_V1/gr25_nodes.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Gr25 nodes design in my own project?
Its repository states no licence, so its author keeps all rights: ask Gaucho-Racing before reusing the design.