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Weather station

Invactive·Weather-station·KiCAD_Project_Files/weather_station.kicad_pcb

Weather station PCB layout, top view — open source STM32 board by Invactive
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About the Weather station PCB

Weather station is an open source STM32 PCB design by Invactive, published on GitHub. It is a 2-layer board measuring 90 × 32 mm, with 59 components from 41 distinct parts.

Its main chip is the STM32F301C8T6TR, from the STM32 family. Other key parts include the RFM95W-868S2R, MICS-6814, KP254, HIH6020-021-001 and TMP36GT9Z. By type, the board carries 19 capacitors, 19 resistors, 10 ICs, 3 connectors, 2 modules and 2 diodes.

It belongs with the sensors, rf & radio and power & battery designs in this gallery.

From the project

PCB project of a remote weather station. The device can measure: temperature, air pressure, air pollution, humidity and insolation.

The PCB project was implemented on a FR-4 laminate with a thickness of 1.5mm and dimensions of 90x32mm, consisting of two signal layers.

The copper tracks have a thickness of 35μm.

The board includes a 2-pin JST-XH power connector, a programmer/debugger 8-pin connector for the microcontroller, and an SMA antenna connector.

To obtain +5V and +3.3V voltages, two voltage converters were used (with a maximum supply voltage of +5.5V).

Weather station, from the project README
From the project README

Main components on the Weather station

RFM95W-868S2RMICS-6814STM32F301C8T6TRKP254HIH6020-021-001TMP36GT9ZTPS61023DRLRINA180A1BH1750FVI-TR

Weather station bill of materials (BOM)

59 components, 41 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RFM95W-868S2R
U1
1
MICS-6814
U2
1
STM32F301C8T6TR
U3
1
KP254
U4
1
HIH6020-021-001
U5
1
TMP36GT9Z
U6
2
TPS61023DRLR
U7, U10
1
INA180A1
U8
1
BH1750FVI-TR
U9
2
Mounting_Wuerth_WA-SMSI-M1.6_H2.5mm_9774025633
M1, M2
1
ABM3-8.000MHZ-D2Y
Y1
1
JST-XH
J1
1
SMA Antenna Connector
J2
1
Programming/Debug Connector
J3
1
SW_MAIN_PWR
SW1
1
LED
D1
1
BAT54S
D2
2
1uH 17mR
L1, L2
6
100nF
C1, C2, C3, C4, C8, C12
1
4.7uF
C5
Show 21 more
QtyPartRefs
1
1uF
C6
1
10nF
C7
2
20pF
C9, C10
1
0.22uF
C11
1
2.2uF 4.06mR
C13
4
2.2uF 7.77mR
C14, C15, C18, C19
1
0.1uF
C16
1
10uF 3mR
C17
1
820R
R1
1
27R
R2
2
10k
R3, R17
1
130R
R4
2
2k2
R5, R6
1
390R
R7
1
100R
R8
1
1k
R9
4
100k
R10, R15, R16, R19
1
453k
R11
1
200R
R12
2
4k7
R13, R14
1
732k
R18

Weather station design files

The KiCad project lives in the Invactive/Weather-station repository on GitHub; these links point at the commit this page was built from.

Weather station: common questions

What microcontroller does the Weather station use?

The Weather station is built around the STM32F301C8T6TR, from the STM32 family.

How big is the Weather station PCB?

The Weather station measures 90 × 32 mm, has 2 copper layers and is 1.59 mm thick.

How many components are on the Weather station?

59 components, from 41 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Weather station design files?

From the Invactive/Weather-station repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Weather station design in my own project?

The repository has no license, so all rights stay with Invactive. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Weather station without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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