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| en:iot-open:practical:hardware:sut:esp32:iot_10 [2024/04/01 18:14] – [IoT_10: BLE Client] ktokarz | en:iot-open:practical:hardware:sut:esp32:iot_10 [2024/05/02 11:05] (current) – [IoT10: BLE Client] ktokarz | ||
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| - | ====== | + | ====== |
| - | This scenario presents the Bluetooth Low Energy client device with a notification/ | + | This scenario presents the Bluetooth Low Energy client device with a notification/ |
| ===== Prerequisites ===== | ===== Prerequisites ===== | ||
| - | It is necessary to understand the principles of the Bluetooth Low Energy protocol with concepts of services, characteristics and descriptors. Notification and indication methods of data transmission should be known. We will use in this scenario the knowledge and the server device created in part 3. | + | It is necessary to understand the principles of the Bluetooth Low Energy protocol with concepts of services, characteristics and descriptors. Notification and indication methods of data transmission should be known. We will use in this scenario the knowledge and the server device created in IoT_9. |
| ===== Suggested Readings and Knowledge Resources ===== | ===== Suggested Readings and Knowledge Resources ===== | ||
| - | None at the time. | + | * [[en: |
| + | * [[en: | ||
| + | * [[en: | ||
| ===== Hands-on Lab Scenario ===== | ===== Hands-on Lab Scenario ===== | ||
| This scenario is intended to be implemented using actual equipment on-site. Although it is possible to make it remotely, with the use of two BLE laboratory nodes, to observe all the details you need to have your mobile phone or similar device with an application which allows you to scan and explore your Bluetooth Low Energy devices and communicate with them. One of the best applications is nRF Connect created by Nordic Semiconductors. | This scenario is intended to be implemented using actual equipment on-site. Although it is possible to make it remotely, with the use of two BLE laboratory nodes, to observe all the details you need to have your mobile phone or similar device with an application which allows you to scan and explore your Bluetooth Low Energy devices and communicate with them. One of the best applications is nRF Connect created by Nordic Semiconductors. | ||
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| === Step 1 === | === Step 1 === | ||
| In this step, we will analyse the behaviour of the client. The client software is much more complex than the server. It is because the central device in many circumstances is a more powerful device than the peripheral. Some parts of the software are implemented as callback functions because they handle reactions on the data coming asynchronously from the server. The diagram presents the algorithm of the client and data coming from the server. | In this step, we will analyse the behaviour of the client. The client software is much more complex than the server. It is because the central device in many circumstances is a more powerful device than the peripheral. Some parts of the software are implemented as callback functions because they handle reactions on the data coming asynchronously from the server. The diagram presents the algorithm of the client and data coming from the server. | ||
| - | {{ en: | + | {{ en: |
| === Step 2 === | === Step 2 === | ||
