2 layers12.1 × 23.5 mm
2 layers12.6 × 26.6 mm
- Size
- 12.6 × 26.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 19
- Pads
- 61
- Tracks, vias
- 274, 12
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 30 Jun 2024
- Updated
- 7 Jul 2024
Overview
BME688 is an open-source printed circuit board by lilylab-dev, from the lilylab-dev/sgwdaughterboards repository on GitHub. It is a 2-layer board of 12.6 × 26.6 mm with 21 parts on 19 nets, routed with 274 tracks and 12 vias.
It is built around the STM32L011D4P6 and BME688. Its parts include 5 resistors, 4 capacitors, 3 ICs, 2 switches and 1 connector. It belongs with the STM32 boards of this library.
Main components
2
STM32L011D4P6
TSSOP-14-40℃~+85℃ 1.65V~3.6V 11 12bit 16KB 2KB 32 Bit 32MHz 512Byte ARM Cortex-M0+ Built-in FLASH TSSOP-14 Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
BME688
SMD-8P-40℃~+85℃ 0%RH~100%RH 1.71V~3.6V 2.1uA I2C、SPI ±0.5℃ ±3%RH SMD-8P Temperature and Humidity Sensor ROHSBosch SensortecTemperature And Humidity Sensor
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | TestPoint_Pad_1.0x1.0mm | TestPoint:TestPoint_Pad_1.0x1.0mm | 5V, GND, PA0, PA9, PA10 |
| 3 | 10k | Resistor_SMD:R_0805_2012Metric | R2, R3, R4 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, Cx1 |
| 2 | 22uF | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | SW_SPST | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | SW1, SW2 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 2.2uH | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 31.6k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | AP62250WU-7 | asd:TSOT26STANDARD_DIO | U3 |
| 1 | BME688 | Package_LGA:Bosch_LGA-8_3x3mm_P0.8mm_ClockwisePinNumbering | U1 |
| 1 | Conn_01x04 | Connector:NS-Tech_Grove_1x04_P2mm_Vertical | J2 |
| 1 | STM32L011D4P6 | DOcuments folder:TSSOP14 | U4 |
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Questions
How big is the BME688 PCB?
It measures 12.6 × 26.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BME688 use?
21 parts, built around the STM32L011D4P6 and BME688. 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 BME688 KiCad files?
From the lilylab-dev/sgwdaughterboards repository on GitHub, at the commit this page was made from: the board is BME688/pp.kicad_pcb and its schematic BME688/pp.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BME688 design in my own project?
Its repository states no licence, so its author keeps all rights: ask lilylab-dev before reusing the design.