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Bluefruit-LE-Shield-HeartRateMonitor (voir la source)
Version du 21 mai 2017 à 19:39
, 21 mai 2017 à 19:39→Le croquis Surveillance Cardiaque
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== Le croquis Surveillance Cardiaque ==
== Le croquis HeartRateMonitor ==
The '''HeartRateMonitor''' example allows you to define a new GATT Service and associated GATT Characteristics, and update the characteristic values using standard AT commands.
The '''HeartRateMonitor''' example allows you to define a new GATT Service and associated GATT Characteristics, and update the characteristic values using standard AT commands.
== Ouvrir le Croquis ==
To open the ATCommand sketch, click on the '''File > Examples > Adafruit_BluefruitLE_nRF51''' folder in the Arduino IDE and select '''heartratemonitor''':
{{ADFImage|Bluefruit-LE-Shield-HeartRateMonitor-00.png}}
This will open up a new instance of the example in the IDE, as shown below:
{{ADFImage|Bluefruit-LE-Shield-HeartRateMonitor-01.png}}
== Configuration ==
Check the '''Configuration!''' page earlier to set up the sketch for Software/Hardware UART or Software/Hardware SPI. The default is hardware SPI
=== If Using Hardware or Software UART ===
This tutorial does not need to use the MODE pin, '''make sure you have the mode switch in CMD mode''' if you do not configure & connect a MODE pin
This demo uses some long data transfer strings, so we recommend defining and connecting both CTS and RTS to pins, even if you are using hardware serial.
If you are using a Flora or just dont want to connect CTS or RTS, set the pin #define's to -1 and '''Don't forget to also connect the CTS pin on the Bluefruit to ground!''' (The Flora has this already done)
If you are using RTS and CTS, you can remove this line below, which will slow down the data transmission
<syntaxhighlight lang="c">
// this line is particularly required for Flora, but is a good idea
// anyways for the super long lines ahead!
ble.setInterCharWriteDelay(5); // 5 ms
</syntaxhighlight>
== Exécuter le croquis ==
Once you upload the sketch to your board (via the arrow-shaped upload icon), and the upload process has finished, open up the Serial Monitor via '''Tools > Serial Monitor''', and make sure that the baud rate in the lower right-hand corner is set to '''115200''':
{{ADFImage|Bluefruit-LE-Shield-HeartRateMonitor-10.png}}
{{ADFImage|Bluefruit-LE-Shield-HeartRateMonitor-11.png}}
If you open up an application on your mobile device or laptop that support the standard [https://developer.bluetooth.org/TechnologyOverview/Pages/HRS.aspx Heart Rate Monitor Service], you should be able to see the heart rate being updated in sync with the changes seen in the Serial Monitor:
== Exemple HRM de la boite à outil nRF ==
The image below is a screenshot from the free nRF Toolbox application from Nordic on Android (also available on iOS), showing the incoming Heart Rate Monitor data:
{{ADFImage|Bluefruit-LE-Shield-HeartRateMonitor-20.png}}
== Exemple HRM CoreBluetooth ==
The image below is from a freely available [https://developer.apple.com/library/mac/samplecode/HeartRateMonitor/Introduction/Intro.html CoreBluetooth sample application] from Apple showing how to work with Bluetooth Low Energy services and characteristics:
{{ADFImage|Bluefruit-LE-Shield-HeartRateMonitor-30.png}}
{{Bluefruit-LE-Shield-TRAILER}}
{{Bluefruit-LE-Shield-TRAILER}}