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ArduinoBLE : BLECharacteristic class

valueLength()

Description

Query the current value size of the specified BLECharacteristic.

Syntax

bleCharacteristic.valueLength()

Parameters

None

Returns

The current value size of the characteristic (in bytes)

Example

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

// …

Serial.print(“value length = “);
Serial.println(switchCharacteristic.valueLength());
…
[Get Code]

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