Arduino ArduinoBLE - bleCharacteristic.properties()用法及代码示例

bleCharacteristic.properties()

// Bluetooth® Low Energy LED Switch Characteristic - custom 128-bit UUID, read and writable by central
BLEByteCharacteristic switchCharacteristic("19B10001-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite);


byte properties = switchCharacteristic.properties();

if (properties & BLERead) {
  // characteristic is readable ...
}

if (properties & (BLEWrite | BLEWriteWithoutResponse)) {
  // characteristic is writable ...
}