4 layers45.7 × 90.3 mm
4 layers45 × 59 mm
SPT Altimeter
rah1236/SPT_Altimeter- Size
- 45 × 59 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 62
- Nets
- 72
- Pads
- 346
- Tracks, vias
- 517, 393
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 30 Jan 2025
- Updated
- 3 Apr 2025
Overview
SPT Altimeter is an open-source printed circuit board by rah1236, from the rah1236/SPT_Altimeter repository on GitHub. It is a 4-layer board of 45 × 59 mm with 62 parts on 72 nets, routed with 517 tracks and 393 vias.
It is built around the BMP280, RFM95W-915S2 and SAM-M8Q-0, with the CR2032 among its other parts. Its parts include 19 capacitors, 19 resistors, 6 ICs, 6 connectors and 3 diodes. It belongs with the STM32 boards of this library.
Main components
4
BMP280
LGA-8(2x2.5)-40℃~+85℃ 0.12hpa 1.5pa/K 1.71V~3.6V 1hpa 300nA 30Kpa~1.1bar I2C、SPI Integrated ADC and digital interface、On-chip calibration and non-volatile storage、Standby mode、On-chip temperature output LGA-8(2x2.5) Pressure Sensors ROHSBoschPressure Sensors
RFM95W-915S2
LCC-16_16X16mmLCC-16_16X16mm New Arrivals ROHSHopeRF Micro-electronicsUncategorised
SAM-M8Q-0
SMD-20P,15x15mmUncategorisedu-blox
CR2032
-- Unclassified goods ROHSMaxellUncategorised
Parts
62| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3, C4, C5, C6, C8, C10, C11, C12, C13, C14, C16, C17 |
| 8 | 0 | Resistor_SMD:R_0402_1005Metric | R5, R6, R7, R8, R9, R10, R11, R12 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R13, R14, R15, R16 |
| 3 | 5.1K | Resistor_SMD:R_0603_1608Metric | R17, R18, R19 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3 |
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3 |
| 2 | 10pF | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R2, R4 |
| 2 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C7, C15 |
| 2 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C18, C19 |
| 1 | 12uH | Inductor_SMD:L_1210_3225Metric | L1 |
| 1 | 22uF | Capacitor_SMD:C_0402_1005Metric | C9 |
| 1 | 2k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 8MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y2 |
| 1 | BMP280 | Package_LGA:Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering | U1 |
| 1 | CP2102N-Axx-xQFN20 | Package_DFN_QFN:SiliconLabs_QFN-20-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U6 |
| 1 | CR2032 | Battery:BatteryHolder_Keystone_1060_1x2032 | BT1 |
| 1 | Conn_ARM_SWD_TagConnect_TC2030-NL | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J1 |
| 1 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | J2 |
| 1 | LOGO | LOGO | G*** |
| 1 | PWRConn | Connector_AMASS:AMASS_XT30PW-M_1x02_P2.50mm_Horizontal | J3 |
| 1 | RFM95W-915S2 | imports:XCVR_RFM95W-915S2 | U4 |
| 1 | SAM-M8Q | RF_GPS:ublox_SAM-M8Q | U3 |
| 1 | STM32F103T8Ux | Package_DFN_QFN:QFN-36-1EP_6x6mm_P0.5mm_EP4.1x4.1mm | U2 |
| 1 | Servo_Conn_1 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J4 |
| 1 | Servo_Conn_2 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J5 |
| 1 | TPS560430X3FDBVR | Package_TO_SOT_SMD:SOT-23-6 | U5 |
| 1 | USB_C_Receptacle | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J6 |
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Questions
How big is the SPT Altimeter PCB?
It measures 45 × 59 mm and has 4 copper layers, 1.6 mm thick.
What parts does the SPT Altimeter use?
62 parts, built around the BMP280, RFM95W-915S2, SAM-M8Q-0 and CR2032. 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 SPT Altimeter KiCad files?
From the rah1236/SPT_Altimeter repository on GitHub, at the commit this page was made from: the board is sptAltimeter.kicad_pcb and its schematic sptAltimeter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SPT Altimeter design in my own project?
Its repository states no licence, so its author keeps all rights: ask rah1236 before reusing the design.