Category : bluetooth

I need to develop a flutter application which displays list of bluetooth devices. But this is to be achieved through C++. For this I wrote C++ code like this. extern "C" char * GetBluetoothDevices() { JavaVM *jvm; JNIEnv *env; JavaVMInitArgs vm_args; // Initialization arguments JavaVMOption* options = new JavaVMOption[1]; // JVM invocation options options[0].optionString = ..

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I want LED 2 to go on as soon as my Android smartphone with its Bluetooth MAC address comes close to my ESP32. But unfortunately I don’t know how to do it … Can anyone help me? https://docs.espressif.com/projects/esp-idf/en/stable/esp32/ I have this one: https://joy-it.net/de/products/SBC-NodeMCU-ESP32 Source: Windows Que..

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