Nonetheless, they are much lower level and harder to use, which means we would loose the simplicity of the BluetoothSerial. So, an option could be using these IDF APIs directly on the Arduino core, since we can access them on our programs. An event based approach can lead to a more efficient implementation of our programs. h library is implemented on top of the IDF Bluetooth APIs, which are event based. Nonetheless, polling is not a very optimized approach, since it wastes CPU cycles that, in many cases, could have been used for other useful computation.Īnother important thing to take in consideration is that the BluetoothSerial. So, a very simple way of implementing the serial communication is polling for incoming data with the available method and then reading the content when it’s available. This means that we also have methods such as the available, to check if the client sent data, or the read, to read data. This library offers a class called BluetoothSerial that behaves very similarly to the Serial object we use on wired serial communication. In this tutorial we will learn how to detect the client connection event when using the Bluetooth Serial library of the Arduino core.Īs covered here, this library allows to establish a serial connection over Bluetooth, leveraging the Serial Port Profile (SPP). The tests were performed using a DFRobot’s ESP32 module integrated in a ESP32 development board. In this tutorial we will learn how to detect the client connection event when using the Bluetooth Serial library of the Arduino core.
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