Cloud Io T Core Kit Examples

Abstract

1. Introduction

Example projects and code are supplied to support the Arm-based IoT Kit for Cloud IoT Core

2. Objective

Example projects and code are supplied to support the Arm-based IoT Kit for Cloud IoT Core

This project demonstrates how Python, Raspberry Pi can be applied to a real-world Internet of Things (IoT) problem.

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Python 3.8 or later
• pip / virtualenv for dependencies
• VS Code, PyCharm or Jupyter Notebook
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/ARM-software/Cloud-IoT-Core-Kit-Examples.git
cd Cloud-IoT-Core-Kit-Examples

1. Create a Cloud Platform project and enable the Cloud IoT Core API using these "Before you begin" directions.
2. Create a new registry using the gcloud command.
3. Create a public/private key pair(s) for your device(s) and create a new device(s) in your project and registry. Or, stretch goal, register one programmatically with these code samples.
4. Create a new pubsub subscription to an event
5. Download the CA root certificates from pki.google.com into the same directory as the example script you want to use:

project=my-project-name-1234
region=us-central1
registry=example-registry
device=my-rs256-device
device2=my-es256-device
mysub=my-sub
events=events
mytopic=events

gcloud iot registries create $registry \
	--project=$project \
	--region=$region \
    --event-notification-config=topic=projects/$project/topics/$events

openssl req -x509 -newkey rsa:2048 -keyout rsa_private.pem -nodes -out rsa_cert.pem

gcloud iot devices create $device \
	--project=$project \
	--region=$region \
	--registry=$registry \
	--public-key path=rsa_cert.pem,type=rs256

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add a mobile dashboard using Blynk or Firebase
• Store readings in a cloud database for history charts
• Add alerts via SMS / Telegram when thresholds are crossed

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Which microcontroller / board and sensors are used and why?
2. How does the device send data (Wi-Fi, MQTT, HTTP, Bluetooth)?
3. Where is the sensor data stored and visualised?
4. How is power consumption managed?
5. How would you secure the device and its communication?

9. Source Code & License

This project is developed by ARM-software and published on GitHub under the Apache License 2.0. Please follow the license terms and credit the original author when you use or modify this code.