6 layers60 × 100 mm
Senseboard
CPSLO-AI-Campus-Fire-Detection/senseboard
PCB for sensor stack and compute for fire detection system
109 partsAGPL-3.0
4 layers120 × 80.1 mm
Weather Station - KiCad
Essenter24/STM32-Weather-StationSTM32 Weather Station project with self-designed PCB, based on BME690 sensor
- Size
- 120 × 80.1 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 58
- Nets
- 78
- Pads
- 224
- Tracks, vias
- 593, 85
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 21 Oct 2026
- Updated
- 29 Oct 2026
Overview
Weather Station - KiCad is an open-source printed circuit board by Essenter24, from the Essenter24/STM32-Weather-Station repository on GitHub, published under the MIT licence. It is a 4-layer board of 120 × 80.1 mm with 58 parts on 78 nets, routed with 593 tracks and 85 vias.
It is built around the STM32L476RGT6, BME690 and CR2032, with the MMBT3904 among its other parts. Its parts include 18 capacitors, 12 resistors, 6 switches, 4 diodes and 2 ICs. It belongs with the home automation and IoT boards and the STM32 boards of this library.
Main components
4
STM32L476RGT6
LQFP-64(10x10)-40℃~+85℃ 1.71V~3.6V 128KB 12bit 12bit 1MB 32 Bit 51 80MHz ARM Cortex-M4 Built-in FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
BME690
LGA-8(3x3)-40℃~+85℃ 0.93mm 1.71V~3.6V 2.2uA 3mm 3mm Gas sensor Low-power mode、Auto calibration、Digital filtering/signal processing、FIFO data buffer SPI、I2C LGA-8(3x3) Specialized Sensors ROHSBosch SensortecSpecialized Sensors
CR2032
-- Unclassified goods ROHSMaxellUncategorised
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
README
README.mdWeather Station STM32
An embedded weather station based on STM32 with self developed PCB engineered using KiCad.
The system, as for now, offers measurements of humidity, pressure and temperature with simple moving average filtering, alongside visualizing the data on LCD screen based on HD44780 controller, as well as sending data in JSON format by UART transmission
Main Functions
- Measurements
- Temperature, humidity and pressure (BME690)
- Visualization
- LCD 2x16 based on HD44780 controller
- Brightness set either manually or automatically, based on light level (measured by photoresistor)
- Connectivity
- UART DMA communication for sending data in JSON format
Hardware
- Custom-designed PCB developed in KiCad
- MCU: STM32L476RG6
- Weather sensor: BME690
Future plans
- Handling air quality control with BME690
- Moving the entire architecture to RTOS
- Improve UART communication reliability during LCD updates
Known issues
- UART tends to send garbage data when the LCD is being refreshed - a flag is used to omit the refreshement of LCD when UART is being transmitted
Project status
Project is under active development
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100n | Capacitor_SMD:C_0603_1608Metric | C9, C10, C11, C12, C13, C14, C15, C17, C18 |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4, H5, H6 |
| 5 | 220 | Resistor_SMD:R_0603_1608Metric | R1, R6, R7, R8, R9 |
| 5 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW2_UP1, SW3_DOWN1, SW4_LEFT1, SW5_RIGHT1, SW6_ENTER1 |
| 4 | 4.7k | Resistor_SMD:R_0603_1608Metric | R2, R3, R4, R5 |
| 4 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3, D4 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C4, C5, C16 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C6, C7 |
| 2 | 7.5p | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric | C8 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 33k | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | BME690 | Package_LGA:Bosch_LGA-8_2.5x2.5mm_P0.65mm_ClockwisePinNumbering | U2 |
| 1 | CA6XVSMD | Stacja_pogodowa:CA6XVSMD10KA2525 | RV1 |
| 1 | CR2032 | Battery:Battery_Panasonic_CR2032-HFN_Horizontal_CircularHoles | BT1 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | Conn_01x06_Pin | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | PGM5639D | OptoDevice:R_LDR_5.1x4.3mm_P3.4mm_Vertical | R11 |
| 1 | QT1M-32.768KDZF-T | Stacja_pogodowa:QT1M | Y1 |
| 1 | STM32L476RGT6 | Stacja_pogodowa:STM32L476RGT6 | U1 |
| 1 | SW_Slide_DPDT | Stacja_pogodowa:MSS2346 | SW7 |
| 1 | ~ | Connector_PinSocket_2.54mm:PinSocket_1x16_P2.54mm_Vertical | LCD1 |
| 1 | ~ | Stacja_pogodowa:PCGK21 | PC-GK2.1 |
| 1 | ~ | Package_TO_SOT_SMD:SOT-23-3 | DI62063 |
| 1 | ~ | Package_TO_SOT_SMD:SOT-23-5 | LDI8119-1 |
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Questions
How big is the Weather Station - KiCad PCB?
It measures 120 × 80.1 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Weather Station - KiCad use?
58 parts, built around the STM32L476RGT6, BME690, CR2032 and MMBT3904. 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 Weather Station - KiCad KiCad files?
From the Essenter24/STM32-Weather-Station repository on GitHub, at the commit this page was made from: the board is Hardware/Weather Station - KiCad.kicad_pcb and its schematic Hardware/Weather Station - KiCad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Weather Station - KiCad design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).