ArduinoBLE - BLECharacteristic()

Create a new BLE characteristic.

Syntax

BLECharacteristic(uuid, properties, value, valueSize)
BLECharacteristic(uuid, properties, stringValue)

BLEBoolCharacteristic(uuid, properties)
BLEBooleanCharacteristic(uuid, properties)
BLECharCharacteristic(uuid, properties)
BLEUnsignedCharCharacteristic(uuid, properties)
BLEByteCharacteristic(uuid, properties)
BLEShortCharacteristic(uuid, properties)
BLEUnsignedShortCharacteristic(uuid, properties)
BLEWordCharacteristic(uuid, properties)
BLEIntCharacteristic(uuid, properties)
BLEUnsignedIntCharacteristic(uuid, properties)
BLELongCharacteristic(uuid, properties)
BLEUnsignedLongCharacteristic(uuid, properties)
BLEFloatCharacteristic(uuid, properties)
BLEDoubleCharacteristic(uuid, properties)

Parameters

uuid: 16-bit or 128-bit UUID in String format properties: mask of the properties (BLEBroadcast, BLERead, BLEWriteWithoutResponse, BLEWrite, BLENotify, BLEIndicate) valueSize: (maximum) size of characteristic value stringValue: value as a string

Returns

New BLECharacteristic with the specified UUID and value

Example


// BLE Battery Level Characteristic
BLEUnsignedCharCharacteristic batteryLevelChar("2A19",  // standard 16-bit characteristic UUID
    BLERead | BLENotify); // remote clients will be able to get notifications if this characteristic changes