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2 layers67.1 × 59 mmProjeto estufa, the printed circuit board in 3D

This project involved building a home weather station entirely from scratch, covering both the physical and software infrastructures.

Size
67.1 × 59 mm
Copper layers
2
Thickness
1.6 mm
Parts
16
Nets
40
Pads
66
Tracks, vias
59, 0
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
8 Apr 2026
Updated
10 Sep 2026

Overview

Projeto estufa is an open-source printed circuit board by felipeCapovilla, from the felipeCapovilla/ThorProject repository on GitHub. It is a 2-layer board of 67.1 × 59 mm with 16 parts on 40 nets, routed with 59 tracks and 0 vias.

README

readme.md

Thor Project

About

This project involved building a home weather station entirely from scratch, covering both the physical and software infrastructures. The main goal was to learn and apply 3D modeling concepts which were developed using the software FreeCad alongside AWS serverless architecture, both of which were central to the project's development. Below is a picture of the final result.

PCB

TopBottom
PCB top viewPCB bottom view
3D View 13D View 2
PCB 3D view 1PCB 3D view 2

Organization

text
├── AWS
│   ├── samconfig.toml                  # Auto-generated AWS SAM configuration file.
│   ├── src                             # Source code for the AWS Lambda functions.
│   │   ├── insertData.py               # Lambda function to ingest and store weather data.
│   │   └── viewData.py                 # Lambda function to fetch the latest weather readings.
│   └── template.yaml                   # Infrastructure as Code (IaC) template for AWS SAM.
|
├── CAD                                 # 3D models and STL files for 3D printing.
│   ├── caixaPrincipal_baixo.stl        # Back enclosure for the main electronics.
│   ├── caixaPrincipal_cima.stl         # Front cover for the main electronics.
│   ├── stevenson_baixo.STL             # Stevenson screen (bottom section).
│   ├── stevenson_cima.STL              # Stevenson screen (top section).
│   ├── stevenson_meio.STL              # Stevenson screen (middle section/louvers).
│   └── suporte_haste.stl               # Mounting bracket for the BME280 and anemometer.
|
├── Esp32
│   └── main.cpp                        # C++ firmware for the ESP32 microcontroller.
|
├── Schematics                          # KiCad PCB project.
│   ├── projeto_estufa.kicad_pro        # KiCad project file.
│   ├── projeto_estufa.kicad_sch        # Schematic.
│   ├── projeto_estufa.kicad_pcb        # PCB layout.
│   ├── projeto_estufa.zip              # Gerber/drill files sent to the manufacturer.
│   └── Pictures                        # Photos of the manufactured PCB.
|
└── readme.md                           # Main project documentation.

AWS Architecture

The backend utilizes the following AWS services:

  • AWS Lambda: Executes the Python logic for data insertion (insertData.py) and retrieval (viewData.py).
  • Amazon DynamoDB: A NoSQL database used to store the telemetry data. The main reason to choose Dynamo is the lower price when compared with AWS RDS, due to the serverless architecture.
  • Amazon API Gateway / Function URLs: Exposes the Lambda functions as HTTP endpoints, both to insert data into the database or to view the data. The view data API returns the last stored values.
  • AWS SAM: Manages the deployment and provisioning of all resources via the template.yaml file.

Data Flow

mermaid
%%{init: {'themeVariables': { 'edgeLabelBackground':'transparent' }}}%%
graph LR
    classDef hardware fill:#e2bc1490,stroke:#fff,stroke-width:0px,color:#fff;
    classDef cloud fill:#2f78d190,stroke:#fff,stroke-width:0px,color:#fff;

    A(Sensors):::hardware --> B(Esp32\n Every 60s):::hardware
    B ---->|POST| C(AWS API Gateway):::cloud
    C --> D(λ\n insertData):::cloud
    D --> E(DynamoDB):::cloud

    F(User Request):::hardware -->|GET| C
    C --> G(λ\n viewData):::cloud
    G<--E
    G --> H(Output):::hardware

Parts

16
QtyValueFootprintReferences
4Conn_01x02_SocketConnector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_VerticalAnemômetro1, Bateria1, LDR1, Thermistor1
4MountingHoleMountingHole:MountingHole_2.2mm_M2H1, H2, H3, H4
310K OhmsResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal10k1, 10k2, 10k3
2Conn_01x19_SocketConnector_PinSocket_2.54mm:PinSocket_1x19_P2.54mm_VerticalJ1, J2
147K OhmsResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal47k1
1BME 280Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_VerticalBME280
1LM393 - ComparadorConnector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_VerticalLM393

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Questions

How big is the Projeto estufa PCB?

It measures 67.1 × 59 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Projeto estufa use?

16 parts. 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 Projeto estufa KiCad files?

From the felipeCapovilla/ThorProject repository on GitHub, at the commit this page was made from: the board is Schematics/projeto_estufa.kicad_pcb and its schematic Schematics/projeto_estufa.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Projeto estufa design in my own project?

Its repository states no licence, so its author keeps all rights: ask felipeCapovilla before reusing the design.