HardLabs

Weather IoT

klinkon-electronics·WeatherIOT-Hardware·Weather IOT 1.0/version 1.0/Weather_IOT_1.0/Weather_IOT_1.0.kicad_pcb

Weather IoT PCB layout, top view — open source ESP32 board by klinkon-electronics

About the Weather IoT PCB

Weather IoT is an open source ESP32 PCB design by klinkon-electronics, published on GitHub. It is a 2-layer board measuring 80 × 80 mm, with 86 components from 49 distinct parts.

Its main chip is the Wemos_esp32_mini, from the ESP32 family. Other key parts include the TPS62A01A, TP4056 and MAX25239AFFA_VY+. By type, the board carries 28 capacitors, 21 resistors, 16 connectors, 13 diodes, 4 ICs and 2 jumpers.

It belongs with the iot & wireless and power & battery designs in this gallery.

From the project

The WeatherIOT Board is a simple, economical but effective ESP32 board that can be use as datalogger for enviromental monitoring with integrations for smart applications such as greenhouses, beehives, smart sprinklers, and much more

WeatherIOT 0.3: Initial release of the board, implementing connectors for all kind of sensors, including sparkfun weather meter (anemometer and pluviometer), on board buck converter power supply (max 30V input) and ESD Protection

Main components on the Weather IoT

TPS62A01ATP4056MAX25239AFFA_VY+Wemos_esp32_mini

Weather IoT bill of materials (BOM)

86 components, 49 distinct parts.

QtyPartRefs
1
TPS62A01A
U1
1
TP4056
U2
1
MAX25239AFFA_VY+
U3
1
Wemos_esp32_mini
U4
1
PV BOARD
J1
1
1S Battery 1
J2
1
Vin5-24V/12VFV
J3
1
RESET
J4
1
Wind sense
J5
1
Rain sense
J6
1
SD_module
J7
2
DS18B20
J8, J10
1
to Expansion Board
J9
1
RTC
J11
1
BME280
J12
1
SPS30
J13
1
Display
J14
1
EXT_UART2
J15
1
EXPANSION_PORT
J16
1
Pullup_EN
JP1
Show 29 more
QtyPartRefs
1
no_BATT
JP2
2
SS34
D1, D8
2
SM4007PL
D2, D3
1
USB-CHRG
D4
1
USB-DONE
D5
1
PWR_5V
D6
1
PWR_3V3
D7
1
RX
D9
1
TX
D10
1
DT1042-04SO-7
D11
2
CUS10S30
D12, D13
1
2.2u
L1
1
1uH
L2
3
4.7u
C1, C4, C5
6
10u
C2, C9, C13, C16, C18, C19
5
22u
C3, C10, C11, C14, C17
9
100n
C6, C7, C20, C23, C24, C25, C26, C27 +1
1
120p
C8
1
22n
C12
1
100p
C15
2
1uF
C21, C22
2
100k
R1, R4
11
1k
R2, R3, R7, R8, R12, R14, R15, R16 +3
1
22k
R5
1
30k
R6
2
1M
R9, R10
1
33k
R11
1
4.7k
R18
2
10k
R19, R22

Weather IoT design files

The KiCad project lives in the klinkon-electronics/WeatherIOT-Hardware repository on GitHub; these links point at the commit this page was built from.

Weather IoT: common questions

What microcontroller does the Weather IoT use?

The Weather IoT is built around the Wemos_esp32_mini, from the ESP32 family.

How big is the Weather IoT PCB?

The Weather IoT measures 80 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Weather IoT?

86 components, from 49 distinct parts. The full bill of materials is listed on this page.

Where can I download the Weather IoT design files?

From the klinkon-electronics/WeatherIOT-Hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

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

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

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

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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