Android Question Sending and receiving data/text over bluetooth without paring

ftuz13 · Sep 26, 2025

Hi,
I am looking for support or sample for sending and receiving data/string/messages between each others (windows, IOS, Android & RPI) over the blue tooth but without paring but all these devices have installed application accordingly B4J, B4I, b4A & b4R

emexes · Sep 26, 2025

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I think @Peter Simpson updated a BLE ~~server~~ peripheral library that should enable this.

five minutes later...

This feels like it:

Customise your BLE GATT Service with BLE Peripheral 2 Enhanced

Hello All, First I want to say thank you to the B4X developers that reached out to me via PM and to others that I spoke to, you all know who you are ? As you are all well aware I personally do not touch Java, I only started learning java so that I could enhance Erel's current BlePeripheral2...

www.b4x.com

and the specific bit you'd be using to send information is:

Peter Simpson said:
Properties:

ManufacturerData As Map
Gets or sets the manufacturer specific data that will be advertised.
Each item in the map should have a positive int number as the key and an array of bytes as the value.

which other devices the receive via the BLE2 scan for available devices.

Erel · Sep 28, 2025

You must use BLE if you want it to work with iOS.

Android - iOS example: https://www.b4x.com/android/forum/threads/ble-chat-connecting-android-and-ios.66543/#content
And with B4J + PyBridge: https://www.b4x.com/android/forum/t...d-on-ble-bluetooth-low-energy.166028/#content

Android Question Sending and receiving data/text over bluetooth without paring

ftuz13

Member

emexes

Expert

Customise your BLE GATT Service with BLE Peripheral 2 Enhanced

Erel

B4X founder

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Android Question Sending and receiving data/text over bluetooth without paring

ftuz13

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