https://github.com/djaus2/googleiothub

An Azure IoT Hub D2C Console app that can be activated by TRIGGERcmd to get telemetry from an Azure IoT Hub, form a speakable string from it and then forward it to a Google Nest.
https://github.com/djaus2/googleiothub

csharp google iot iothub

Last synced: 9 months ago
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An Azure IoT Hub D2C Console app that can be activated by TRIGGERcmd to get telemetry from an Azure IoT Hub, form a speakable string from it and then forward it to a Google Nest.

• Host: GitHub
• URL: https://github.com/djaus2/googleiothub
• Owner: djaus2
• License: cc0-1.0
• Created: 2022-03-24T06:38:06.000Z (about 4 years ago)
• Default Branch: master
• Last Pushed: 2022-03-30T06:07:29.000Z (about 4 years ago)
• Last Synced: 2025-04-23T18:19:29.936Z (about 1 year ago)
• Topics: csharp, google, iot, iothub
• Language: C#
• Homepage:
• Size: 85 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# GoogleIoTHub

An Azure IoT Hub D2C Console app that can be activated by TRIGGERcmd to get telemetry from an Azure IoT Hub, 

forming a speakable string from it and then forwarding it to a Google Nest for enunciation.

This is a work in progress:

- D2C Console app **GoogleIoTHubD2C** that writes last telemetry send to Azure IoT Hub to temp file.

  - Optional arg: true/false(default true) if true runs app for just the next received telemetry only, false viz.

  - _2Do: Each time app runs it reads all telemetry sent in last 24hrs. Better to have a service locally that serves up last sent msg only. ... later_

- Device Simulator Console App **simulated-device**

  - Optional args: period(default 10sec)  deviceconnectionstring

    - deviceconnectionstring: defaults to environment value

    - Can Use dots to use defaults, as place holders

- Extracted single generic telemetry send to class library **SendTelemetry2Hub**

  - Added **simulated-device-local** console app that uses it locally.:  

    ```await DeviceSendTelemetryToHub.SendDeviceToCloudMessageAsync(telemetryData, deviceconnectionString);```

    - ```deviceconnectionstring``` is the Device Connection String for the IOY Hub

    -  ```telemetryData``` is of dynamic type eg:  

```

    double currentTemperature = minTemperature + rand.NextDouble() * 15;

    double currentHumidity = minHumidity + rand.NextDouble() * 20;

    // Create JSON message

    var telemetryData = new

    {

        temperature = currentTemperature,

        humidity = currentHumidity

    };

```

- Published lib to Nuget as [SendTelemetery2Hub](https://www.nuget.org/packages/SendTelemetry2Hub/)

  - Added **simulated-device-nuget** console app that uses Nuget package.

    - Optional args: period(default 10sec)  deviceconnectionstring

      - deviceconnectionstring: defaults to environment value

      - Can Use dots to use defaults, as place holders

- **bme280-device-local** Console app that reads telemetry from a BME280 and sends that telemetry.

  - Optional args: period(default 10sec)  deviceconnectionstring

    - deviceconnectionstring: defaults to environment value

    - Can Use dots to use defaults, as place holders

  - [Typical Circuit](https://github.com/djaus2/DNETCoreGPIO/blob/master/DNETCoreGPIO/Circuits/rpi-bmp280_i2c.png)

    - [More info from line 42 here](https://github.com/djaus2/DNETCoreGPIO/blob/master/DNETCoreGPIO/BMX280Sampler.cs)

- **dht22-1-wire-device-local** Console app that reads telemetry from a DHT22 1-Wire and sends that telemetry

  - Optional args: period(default 10sec)  deviceconnectionstring dht22Gpio(default 26)

    - deviceconnectionstring: defaults to environment value

    - Can Use dots to use defaults, as place holders 

  - [Typical circuit](https://github.com/djaus2/DNETCoreGPIO/blob/master/DNETCoreGPIO/Circuits/dht22.png) 

    - Nb: In that diagram to pinouts are Pwr-Signal-nc-Gnd  Pwr = 5V

    - On my (red) device they are Gnd-Pwr-Signal  I use Pwr = 3.3V

- **bme280**  is now option 31 for [djaus2/DNETCoreGPIO](https://github.com/djaus2/DNETCoreGPIO)

  - Parameters there are: 31 . \ \

  - The second parameter is a dot as a place holder as bme280 doesn't use GPIO. It uses I2C.

- [Integrations with Triggercmd](https://github.com/djaus2/TRIGGERcmdRPi)

  - Coming