BluetoothRemoteGATTCharacteristic: writeValue() method

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Use BluetoothRemoteGATTCharacteristic.writeValueWithResponse() and BluetoothRemoteGATTCharacteristic.writeValueWithoutResponse() instead.

The BluetoothRemoteGATTCharacteristic.writeValue() method sets a BluetoothRemoteGATTCharacteristic object's value property to the bytes contained in a given ArrayBuffer, TypedArray, or DataView, writes the characteristic value with optional response, and returns the resulting Promise.

Syntax

js
writeValue(buffer)

Parameters

value

An ArrayBuffer, TypedArray, or DataView.

Return value

A Promise.

Specifications

Specification
Web Bluetooth
# dom-bluetoothremotegattcharacteristic-writevalue

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
writeValue
Deprecated
Chrome – Full support
Chrome 56 (Release date: 2017-01-25)
footnote Full support
Edge – Full support
Edge 79 (Release date: 2020-01-15)
footnote Full support
Firefox – No support
Firefox
footnote
footnote See bug 674737
Opera – Full support
Opera 43 (Release date: 2017-02-07)
footnote Full support
Safari – No support
Safari
footnote
footnote See bug 101034
Chrome Android – Full support
Chrome Android 56 (Release date: 2017-02-01)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote
footnote See bug 674737
Opera Android – Full support
Opera Android 43 (Release date: 2017-09-27)
footnote Full support
Safari on iOS – No support
Safari on iOS
footnote
footnote See bug 101034
Samsung Internet – Full support
Samsung Internet 6 (Release date: 2017-08-23)
footnote Full support
WebView Android – No support
WebView Android
footnote No support
WebView on iOS – No support
WebView on iOS
footnote
footnote See bug 101034

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Deprecated. Not for use in new websites.
See implementation notes.