4 layers36.5 × 69 mm
Storm tracker
solderable/storm-tracker-hardware
Open-source-ready Storm Tracker hardware design, documentation, BOM, and manufacturing package
102 parts58
4 layers85 × 100 mm
Trailtrack
lead-afk/TrailTrack-pub- Size
- 85 × 100 mm
- Copper layers
- 4
- Thickness
- 1.58 mm
- Parts
- 128
- Nets
- 91
- Pads
- 433
- Tracks, vias
- 872, 448
- Pours
- 60
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 27 Oct 2026
- Updated
- 27 Oct 2026
Overview
Trailtrack is an open-source printed circuit board by lead-afk, from the lead-afk/TrailTrack-pub repository on GitHub. It is a 4-layer board of 85 × 100 mm with 128 parts on 91 nets, routed with 872 tracks and 448 vias.
It is built around the STM32U585RIT6, MAX-M10M-20B and AS3935-BQFT, with the BME280, MEM2075-00-140-01-A and SI2301CDS-T1-BE3 among its other parts. Its parts include 50 capacitors, 22 resistors, 17 connectors, 11 switches and 8 ICs. It belongs with the STM32 boards of this library.
Main components
12
STM32U585RIT6
LQFP-64(10x10)-40℃~+85℃ 1.71V~3.6V 160MHz 2MB 32 Bit 51 784KB ARM Cortex-M33 Built-in+External FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)MAX-M10M-20B
SMD,10.1x9.7mmSMD,10.1x9.7mm GNSS Modules ROHSu-bloxGNSS Modules
AS3935-BQFT
MLPQ-16(4x4)Lightning Sensor Low-power mode、Interrupt output、Auto calibration、Threshold detection/alarm function MLPQ-16(4x4) Specialized Sensors ROHSSciosenseSpecialized Sensors
BME280
LGA-8(2.5x2.5)-40℃~+85℃ 0%RH~100%RH 1.71V~3.6V 1.8uA 16bit I2C、SPI ±0.5℃ ±3%RH LGA-8(2.5x2.5) Temperature and Humidity Sensor ROHSBoschTemperature And Humidity SensorMEM2075-00-140-01-A
SMD1.4mm MicroSD Card (TF Card) Push-Push SMD SD Card / Memory Card Connector ROHSGlobal Connector Technology (GCT)SD Card / Memory Card Connector
SI2301CDS-T1-BE3
SOT-23(TO-236)MOSFETsVishay Intertechnology
TPS22918TDBVTQ1
SOT-23-6-40℃~+105℃ 1 1V~5.5V 2A 52mΩ Active High Load Switch SOT-23-6 Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
TPS73733DCQ
SOT-223-6-40℃~+125℃@(Tj) 1 1A 27uVrms 3.3V 5.5V 500mV@(1A) 58dB@(100Hz) Fixed、Adjustable Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Reverse-polarity current protection、Noise bypass terminal Positive SOT-223-6 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)BAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky Diodes
BLM18AG601SN1D
0603-55℃~+125℃ 1 380mΩ 500mA 600Ω@100MHz ±25% 0603 Ferrite Beads ROHSMurataFerrite BeadsCONMHF1-SMD-T
--65℃~+165℃ 1 50Ω 6GHz Board Side IPEX - Coaxial Connectors (RF) ROHSLinxCoaxial Connectors (RF)
Parts
128| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C10, C11, C26, C28, C31, C32, C33, C36, C37, C39, C41, C42, C43, C44, C45 +7 |
| 10 | TS40-66-33-BK-160-SMT-TR | lib:TS406650R260SMTTR | S2, S3, S4, S5, S6, S7, S8, S9, S10, S11 |
| 7 | 33K | Resistor_SMD:R_0805_2012Metric | R3, R4, R7, R8, R9, R10, R11 |
| 7 | Conn_01x01 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J1, J10, J11, J12, J13, J15, J16 |
| 5 | 10uF | Capacitor_SMD:C_0805_2012Metric | C2, C4, C7, C12, C22 |
| 5 | 1uF | Capacitor_SMD:C_0805_2012Metric | C5, C14, C17, C25, C38 |
| 5 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C18, C21, C24, C27, C40 |
| 4 | 100k | Resistor_SMD:R_0805_2012Metric | R12, R13, R14, R20 |
| 4 | 10k | Resistor_SMD:R_0805_2012Metric | R2, R15, R21, R22 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 22uF | Capacitor_SMD:C_0805_2012Metric | C15, C19, C20 |
| 3 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP1, TP2, TP3 |
| 2 | 0.001uF | Capacitor_SMD:C_0805_2012Metric | C23, C52 |
| 2 | 12pF | Capacitor_SMD:C_0603_1608Metric | C29, C30 |
| 2 | 1K | Resistor_SMD:R_0805_2012Metric | R6, R16 |
| 2 | 2N7002 | lib:SOT96P240X120-3N | Q1, Q2 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric | R17, R18 |
| 2 | 5.1K | Resistor_SMD:R_0805_2012Metric | R1, R5 |
| 2 | 8.2pF | Capacitor_SMD:C_0603_1608Metric | C34, C35 |
| 2 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2, J8 |
| 2 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6, J7 |
| 1 | 0.01uF | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 130pF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 680 | Resistor_SMD:R_0805_2012Metric | R19 |
| 1 | 820pF | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | AS3935-BQFT | lib:QFN65P400X400X80-17N-D | IC3 |
| 1 | BAT54C | Package_TO_SOT_SMD:SOT-23 | D2 |
| 1 | BLM18AG601SN1D | lib:BLM18SP221SN1B | FB1 |
| 1 | BME280 | Package_LGA:Bosch_LGA-8_2.5x2.5mm_P0.65mm_ClockwisePinNumbering | U2 |
| 1 | Battery_Cell | lib:1052 | BT1 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_15x7.5RM7.6 | BZ1 |
| 1 | CM7V-T1A-32.768k-7pF-20PPM-TA-QA | lib:CM7V32768TBQA020 | Y2 |
| 1 | CONMHF1-SMD-T | lib:CONMHF1SMDT | J3 |
| 1 | Conn_01x03 | Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_Vertical | J14 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J9 |
| 1 | Conn_01x09 | Connector_PinSocket_2.54mm:PinSocket_1x09_P2.54mm_Vertical | J17 |
| 1 | MA5532-AEB | lib:MA5532AEB | L1 |
| 1 | MAX-M10M-20B | lib:MAXM10M20B | IC1 |
| 1 | MEM2075-00-140-01-A | lib:MEM20750014001A | J5 |
| 1 | ORANGE | LED_SMD:LED_0805_2012Metric | D4 |
| 1 | RED | LED_SMD:LED_0805_2012Metric | D3 |
| 1 | SI2301CDS-T1-BE3 | lib:SOT95P237X112-3N | IC6 |
| 1 | SLW-874744-6A-RA-N-D | lib:SLW8747446ARAND | S1 |
| 1 | SS24 | lib:DIOM5436X244N | D1 |
| 1 | STM32U585RIT6 | lib:QFP50P1200X1200X160-64N | IC5 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | TPS22918TDBVTQ1 | lib:SOT95P280X145-6N | IC4 |
| 1 | TPS73733DCQ | lib:SOT127P706X180-6N | IC2 |
| 1 | UJ20-C-H-G-SMT-TR | UJ20-C-H-G-SMT-TR:CUI_UJ20-C-H-G-SMT-TR | J18 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U1 |
| 1 | XRCGB25M000FFS1JR0 | lib:XRCGB25M000FFS1JR0 | Y1 |
Questions
How big is the Trailtrack PCB?
It measures 85 × 100 mm and has 4 copper layers, 1.58 mm thick.
What parts does the Trailtrack use?
128 parts, built around the STM32U585RIT6, MAX-M10M-20B, AS3935-BQFT and BME280. 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 Trailtrack KiCad files?
From the lead-afk/TrailTrack-pub repository on GitHub, at the commit this page was made from: the board is _restore_backup_2026-09-29T14-20-59-504/trailtrack.kicad_pcb and its schematic _restore_backup_2026-09-29T14-20-59-504/trailtrack.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Trailtrack design in my own project?
Its repository states no licence, so its author keeps all rights: ask lead-afk before reusing the design.
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