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iothings:proiecte:2021:airqualityedgeimpulse [2022/01/23 22:39] alexandra.covor [Air Quality Monitoring Using Edge Impulse] |
iothings:proiecte:2021:airqualityedgeimpulse [2022/01/25 22:11] (current) alexandra.covor [Hardware Description] |
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| Project repository: [[https://github.com/Alexandra182/AirQuality-EdgeImpulse-ESP32]] | Project repository: [[https://github.com/Alexandra182/AirQuality-EdgeImpulse-ESP32]] | ||
| - | Demo video: | + | Demo video: [[https://www.youtube.com/watch?v=48sH_nrRz8E]] |
| ===== Introduction ===== | ===== Introduction ===== | ||
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| * LED - connected to a PWM pin of the ESP32. | * LED - connected to a PWM pin of the ESP32. | ||
| + | {{:iothings:proiecte:2021:alexandra_c:circuit.jpeg?400|}} | ||
| ==== Wiring ==== | ==== Wiring ==== | ||
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| The ESP32 development board is not officially supported by Edge Impulse, but their [[https://docs.edgeimpulse.com/docs/porting-guide|Porting guide]] provides instructions on how to connect it to the platform. The first option to do this, and also the fastest and easiest to implement, is the Data Forwarder, which allows collecting data from the development board over a serial connection. The second option, and the one I chose to implement in this project, is sending data remotely, directly from the device, using the [[https://docs.edgeimpulse.com/reference/ingestion-api|Ingestion API]] and (optionally) the [[https://docs.edgeimpulse.com/reference/remote-management|Remote management protocol]]. | The ESP32 development board is not officially supported by Edge Impulse, but their [[https://docs.edgeimpulse.com/docs/porting-guide|Porting guide]] provides instructions on how to connect it to the platform. The first option to do this, and also the fastest and easiest to implement, is the Data Forwarder, which allows collecting data from the development board over a serial connection. The second option, and the one I chose to implement in this project, is sending data remotely, directly from the device, using the [[https://docs.edgeimpulse.com/reference/ingestion-api|Ingestion API]] and (optionally) the [[https://docs.edgeimpulse.com/reference/remote-management|Remote management protocol]]. | ||
| - | Using the Remote management protocol, I first opened a WebSocket connection from the ESP32 to **[[ws://remote-mgmt.edgeimpulse.com]]** and I sent a JSON-encoded Hello request: | + | After creating a project on Edge Impulse, using the Remote management protocol, I first opened a WebSocket connection from the ESP32 to **[[ws://remote-mgmt.edgeimpulse.com]]** and I sent a JSON-encoded Hello request: |
| <code> | <code> | ||
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| {{:iothings:proiecte:2021:alexandra_c:logic_diagram_3.png?|}} | {{:iothings:proiecte:2021:alexandra_c:logic_diagram_3.png?|}} | ||
| - | The **inference_web_server.ino** file contains the **getSensorReadings()** function, which constructs a JSON file with the sensor readings and the inference result: | + | The **inference_web_server.ino** file contains the **getSensorReadings()** function, which constructs a JSON object with the sensor readings and the inference result: |
| <code c> | <code c> | ||
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| } | } | ||
| </code> | </code> | ||
| - | ==== Conclusions ==== | + | ===== Conclusions ===== |
| Future improvements to the project include gathering more data in order to properly train the model, as the current implementation is more of a proof of concept, and implementing alerts when anomalies in the data are detected. | Future improvements to the project include gathering more data in order to properly train the model, as the current implementation is more of a proof of concept, and implementing alerts when anomalies in the data are detected. | ||
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| - [[https://github.com/edgeimpulse/ingestion-sdk-c|Edge Impulse C Ingestion SDK]] | - [[https://github.com/edgeimpulse/ingestion-sdk-c|Edge Impulse C Ingestion SDK]] | ||
| - [[https://github.com/rafaelbidese/ei-projects|Edge Impulse C Ingestion SDK Samples]] | - [[https://github.com/rafaelbidese/ei-projects|Edge Impulse C Ingestion SDK Samples]] | ||
| + | - [[https://github.com/me-no-dev/ESPAsyncWebServer|ESPAsyncWebServer]] | ||
| + | - [[https://github.com/me-no-dev/AsyncTCP|AsyncTCP]] | ||
| ==== Others ==== | ==== Others ==== | ||
