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IoT on AWS with NodeMCU for less than 5 Euros
The document outlines a workshop on using AWS IoT and NodeMCU for IoT projects, emphasizing low-cost solutions for connecting devices. Participants will learn about setting up NodeMCU, publishing data to AWS IoT, and using related features like the rule engine and thing shadows. The event includes hands-on activities to create an AWS IoT thing and trigger AWS Lambda functions based on sensor data.
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IoT on AWS with NodeMCU for less than 5 Euros
- 1. IoT on AWSand NodeMCU FOR LESS THAN 5 EUROS June 2016 01
- 2. About Johann • TechEvangelist @Stylight • 15+ years in tech • In Germany for 2 years • 7 years in San Francisco doing startups • Organizer of many meetups 2
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- 4. What are yougoing to learn? 4 • Discover ESP8266/NodeMCU • Introduction to AWS IoT • Hands-on • Connecting a NodeMCU board • Configuring Arduino environment for NodeMCU • Installing AWS SDK • Publishing sensor data to AWS IoT • Trigger rules to invoke Lambda function
- 5. ESP8266 5 • Cheap: $2 •Very low power consumption • WIFI • Deep-sleep mode
- 6. NodeMCU • Micro-usb forflashing and power • 3v - 5v: Support Arduino sensors • Compatible Arduino/Lua • CHEAP 6
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- 8. Why? 8 • Cheap isgood in IoT because it scales • But no direct support of AWS IoT because no TLS 1.2 module yet in ESP8266 • Hackers always find workarounds
- 9. If you justwant to play around/prototype 9
- 10. Introduction to AWSIoT 10 • Serverless way to connect your IoT devices and start processing data • Supports MQTT, HTTP • Secure - communication through use of X.509 Certificates • Can connect huge amount of sensors, store and process the data in real-time
- 11. AWS IoT Architecture 11source:http://docs.aws.amazon.com/iot/latest/developerguide/aws-iot-how-it-works.html
- 12. What’s a Thing? 12 •An IoT Device • Sensors, actuators, • In our case a NodeCMU board
- 13. What’s the MessageBroker? 13 • Used to securely exchange messages following the publish- subscribe pattern, between IoT applications and Things. • MQTT to publish/subscribe • HTTP to publish • Note: MQTT uses TLS 1.2 which is not available in NodeMCU • Let’s use HTTP then!
- 14. What’s the RuleEngine? 14 • Used to process messages and talk to other AWS components like Lambda, DynamoDB, etc • SQL-Based language to select specific messages to be passed along.
- 15. What are ThingShadows? 15 • Devices sometimes go offline • A Thing Shadow provide a persistent representation of a Thing • A Thing can sync its state to its Thing Shadow through the REST API
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- 18. We are goingto: 18 • Create a Thing in AWS IoT • Publish sensor data from our NodeMCU to update our Thing Shadow • Have a look at the MQTT Client • Create a Rule to trigger a lambda when humidity is > 50% • Publish the data to Slack
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