# BLEPeripheralServer.writeCharacteristicValue(Object Object)

Start from base library version 2.10.3. Please remaining backward compatible.

with Promise style call: Not supported

Mini Program plugin: Not supported

Writes a binary data value to the specified feature, notifying the connected host that the slave's characteristic value has changed, and the interface handles whether to walk back to the packet or to subscribe.

# parameter

# Object Object

attribute type Default values Required Introductions
serviceId String yes Bluetooth Feature Corresponding Service UUID
characteristicId String yes Bluetooth characteristic UUID
value ArrayBuffer yes characteristic Corresponding binary value
needNotify Boolean yes Do you need to notify the host value Updated
callbackId Number no Optionally, use the
success function no Interface calls the successful callback function
fail function no Interface calls failed callback functions
complete function no Callback function at the end of an interface call (both successful and unsuccessful calls are executed)