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This contains theIoT device framework,IoT cloud platform,AWS/GCP/Azure IoT end-to-end demo,Twitter demo andAmazon Alexa demo applications for FTDI/Bridgetek's FT900 series of memory-constrained microcontrollers (MCUs).

• This demonstrates using theFT900 microcontroller [or ESP32 microcontroller] as an Amazon Echo Dot device, where users can interact with Alexa via an edge gateway hub.
• This integratesAmazon Alexa Voice Service AVS SDK C++ on smart hub device running on Raspberry PI platform and addsAlexa Virtualization feature enabling multiple in-house FT900 MCUs [or ESP32 MCUs] to simultaneously access Alexa (using different Alexa instances and Amazon accounts) and receive audio content (dialogue responses, alerts/alarms/notifications, music/live news/audiobook, etc) with visual display cards.
• This will be integrated to the next iteration ofPanL Smart Home Automation (PanL Hub and PanL Display).
• RPI Alexa Gateway,FT900 Alexa Client,FT900 Alexa Client Simulator,ESP32 Alexa Client

• This demonstrates secure MQTT connectivity to Amazon AWS IoT Core and AWS Greengrass using MQTT library from Amazon FreeRTOS aka AWS IoT SDK.
• It contains end-to-end demo including lambda functions for backend cloud and local gateway (Greengrass).
• This was made after I successfully integrated mbedTLS open-source library with optimal settings for memory footprint.
• This was presented in Electronica 2018https://brtchip.com/Brochures/FT900%20AWS%20IoT%20Demosheet.pdfhttps://github.com/richmondu/FT900/tree/master/IoT/aws_demos_ft_greengrass_lwip_mbedtls

• This demonstratessecure MQTT connectivity to popular IoT cloud services:https://github.com/richmondu/FT900/tree/master/IoT/ft90x_iot_aws_gcp_azure

  Amazon AWS IoT Core [usingX.509 certificate authentication]

  Google Cloud IoT Core [usingJWT authentication]

  Microsoft Azure IoT Hub [usingSAS authentication and X.509 certificate authentication]

• These were presented in Embedded World 2019https://www.ftdichip.com/Embedded%20World%202019.htm

• The IoT library consists of AWS/GCP/Azure IoT cloud connectivity, mbedTLS SSL library integration, X.509 certificate handling/authentication, JWT/SAS access token generation, ciphersuite security-memory footprint tradeoffs, LWIP open-source bug fix contributions, and IoT Project Templates (for FT900 Eclipse IDE).

• Modify USE_MQTT_BROKER to select your chosen cloud platform or local MQTT broker

• These demonstratesecure HTTPS connectivity (withSigV4 authentication) to access REST APIs of Amazon services.

• This consists of the following demo applications

  FT900 Amazon SNS Client - sending of text/SMS or email messageshttps://github.com/richmondu/FT900/tree/master/IoT/ft90x_amazon_sns_httpclient

  FT900 Amazon Lambda Client - invoking serverless cloud functionhttps://github.com/richmondu/FT900/tree/master/IoT/ft90x_amazon_lambda_httpclient

  FT900 Amazon DynamoDB Client - adding items to a database tablehttps://github.com/richmondu/FT900/tree/master/IoT/ft90x_amazon_dynamodb_httpclient

  FT900 Amazon IoT Core Client - publishing sensor datahttps://github.com/richmondu/FT900/tree/master/IoT/ft90x_amazon_iot_httpclient

• This demonstratessecure HTTPS connectivity (withOAuth authentication) to access REST APIs of Twitter.
• The application demonstrates posting tweets to Twitter.https://github.com/richmondu/FT900/tree/master/IoT/ft90x_twitter_httpclient