150 lines
3.6 KiB
Markdown
150 lines
3.6 KiB
Markdown
# Introduction (WIP)
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An attempt to create a remote weather station hub on the Raspberry Pi.
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The repository consists on several modules written in C# and an Android application written in Java.
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Communication between the Raspberry and the Android application is done via [gRPC](https://grpc.io/).
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**The project is still undergoing development and it's not production ready.**
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[](https://circleci.com/gh/dnutiu/NucuCar)
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# Architecture
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TBD
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# Installing and Developing
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## Requirements
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To build this project you will need to install .Net Core 3.1 and Android Studio.
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* https://docs.microsoft.com/en-us/dotnet/core/install/
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* https://developer.android.com/studio
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To run this project on the Raspberry Pi you will need dotnet core 3.1. installed.
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## Building
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The following script provides instructions on how to build the whole project and deploy the NucuCar.Sensors module on the Raspberry Pi.
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#### Manual
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```$xslt
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// Build project
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dotnet build --runtime linux-arm -p:PublishSingleFile=true --configuration Release
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// Navigate to desired project directory, for example NucuCar.Sensors.
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cd NucuCar.Sensors
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// Create .tar
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tar -zcvf nh.tar.gz .\bin\Release\netcoreapp3.1\linux-arm\*
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// Copy onto pi (replace with your ip, user)
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sftp pi@192.168.0.100
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sftp> put nh.tar.gz
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sftp> exit
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// SSH into pi
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ssh pi@192.168.0.100
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// Extract the archive and cd into it
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tar -zxvf nh.tar.gz
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cd bin/Release/netcoreapp3.1/linux-arm/
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// Grant execution permissions
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chmod +x NucuCar.Sensors
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// Run the program
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./NucuCar.Sensors
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```
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To make it easier for you to run the project, you may define a SystemD service for it:
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1\. Create the SystemD service file with the following command:
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```bash
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sudo nano /etc/systemd/system/nucucar_sensors.service
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```
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2\. Paste the following contents and make sure to update the WorkingDirectory and ExecStarts paths:
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```
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[Unit]
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Description=NucuCar.Sensors SystemD Service.
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After=network.target
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[Service]
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User=pi
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Group=pi
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WorkingDirectory=/home/pi/NucuCar/bin/Release/netcoreapp3.1/linux-arm
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ExecStart=/home/pi/NucuCar/bin/Release/netcoreapp3.1/linux-arm/NucuCar.Sensors
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[Install]
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WantedBy=multi-user.target
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```
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3\. SystemD commands
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```bash
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sudo systemctl start nucucar_sensors
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sudo systemctl stop nucucar_sensors
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sudo systemctl restart nucucar_sensors
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sudo systemctl status nucucar_sensors
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```
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Enable starts the service after the pi has booted, disable undoes what enable does.
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```bash
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sudo systemctl enable nucucar_sensors
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sudo systemctl disable nucucar_sensors
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```
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To browse the logs for the session and all logs of the service:
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```bash
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journalctl -e -u nucucar_sensors.service
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journalctl -u nucucar_sensors.service
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```
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---
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## Directory Structure Overview
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### NucuHub.Android
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Holds the Android application.
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We are currently targeting Android API 29+.
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### NucuCar.Domain
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Holds common classes and interfaces that are required by the projects,
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provides all the types that are generated via protocol buffers and some utility classes.
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### NucuCar.Telemetry
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Holds concrete implementation for telemetry publishers and workers.
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The Telemetry project can be used by other projects such as
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NucuCar.Sensors to send telemetry into the cloud.
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This project is not deployed.
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### NucuCar.Sensors
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Manages all the sensors. For more info see the readme file located in the project directory.
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This module is runnable and is deployed on the Raspberry Pi.
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### NucuCar.TestClient
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Command line utility to play around with the car functionality.
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You can use it to remotely read data from the sensors via gRPC methods and
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to publish and read telemetry data.
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### Docs
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Holds project resources and documentation.
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