Questions tagged [react-native-ble-manager]
35 questions
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Differences between react-native-ble-plx vs react-native-ble-manager
I found the following libraries that support BLE for react native, I wanted to know the opinion of those who have had the opportunity to try them, if you have tried them.
Can you tell me the differences between them?
What are the pros and cons of…

Paul
- 3,644
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how to connect and get data from car OBD device by bluetooth in react native?
I want to connect to OBD device and recive car informations by react native
how can do that?
0
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0 answers
ble manager write command now working in react native
I am trying to send a unlock command for a lock but ble manager return undefined in result.
code below:
let finalCommand =
"f11fffee03100014fdb247fd2a15291d1c21f417d508cb62be27d05513ded16374f6f572666f6aa043f22f";
const data =…

Suraj
- 61
- 4
0
votes
1 answer
Android/React Native crashing with react-native-ble-manager on one phone, but not other
So I'm running into an issue where I am getting an app crashing on one phone (Pixel 6 Android 13), but not an Android 11 phone when running BLEManager.scan.
Here are the permissions being used:

Ben Rauzi
- 564
- 4
- 13
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null is not an object (evaluating '_BleModule.BleModule.createClient')
I'm trying to create expo app on windows for android with 'react-native-ble-plx' package. However, after ejecting and scanning QR code on my Xiaomi I get an error: null is not an object (evaluating '_BleModule.BleModule.createClient').
I followed…

OneCupOfTea
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0 answers
React Native Android 12 Permission, Ble cannot scan
On Android 12 or higher Ble cannot scan. My android.manifest is below:

Furkan KARABABA
- 17
- 4
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1 answer
Error when using write() with "react-native-ble-manager" library with status=3
So, I'm trying to send data to BLE device.
My phone and BLE device are already connected.
My function:
const sendCom = async () => {
const data = utf8Encode('1') // convert data to bytes
const service = 'fff0'
const characteristic =…

Grayza
- 53
- 10
0
votes
1 answer
Could not find service with uuid error on IOS React-native BleManager
I do the same things on android it works but on IOS it doesn't work.
I can scan devices on IOS and Android.
I can blemanger.connect to any device on IOS and Android..
I can't startNotification on my device on IOS but can on android.
I tried…

HUV
- 59
- 7
0
votes
1 answer
BleManager.Write not returning anything (React-Native)
Hello I'm trying to communicate between my bluetooth sensor and my phone using BLE Manager.XX
I'm trying to create a React-Native app.XX
........I can find & connect to my Bluetooth sensor.XX
........I can send data.XX
........I can recieve…

flyingOrangutan
- 1
- 1
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votes
1 answer
React-Native BleManager.Write doesn't return anything
Hello I'm trying to communicate between my bluetooth sensor and my phone using BLE Manager.
I'm trying to create a React-Native app.
I can find & connect to my Bluetooth sensor.
I can send data.
I can recieve data
I can't collect the sensor…

HUV
- 59
- 7
0
votes
0 answers
How can I get BleManager.write-> return promise
Hey I'm new to react :) , trying to get response from write function. I tried the function below.
const response = BleManager.write(
"XX:XX:XX:XX:XX:XX,
'XXXXXXXX-0000-XXXX-XXXX-XXXXXXXXXXXX',
'XXXXXXXX-0000-XXXX-XXXX-XXXXXXXXXXXX',
data,
…

HUV
- 59
- 7
0
votes
1 answer
react native ble manager BleManager.write function doesn't respond as expected
const infoConnected = () => {//Show the connected devices
BleManager.getConnectedPeripherals([]).then((results) => {
if (results.length == 0) {
console.log('No connected peripherals')
}
//for (var i = 0; i < 1;/*list2.length;*/ i++)…

HUV
- 59
- 7
0
votes
1 answer
React-Native-BLE-plx : how to get all scanned device list of advertising ble devices using ble-plx or BLE-Manager
im making a ble devices scanning app and im facing 2 different problems with these two libraries.
using ble-plx: it is only returning a single device object after scanning not a list of device.
.
with ble-plx i tried this…

Khizer Hayat
- 1
- 1
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votes
0 answers
Listen to bluetooth disabled on iOS
I'm creating a Bluetooth application,
and I'm trying to listen to Bluetooth events.
I'm using react-native-bluetooth-classic library:
https://kenjdavidson.com/react-native-bluetooth-classic/api-overview/
I've succeeded listen to onDeviceRead from…

cirpel4
- 53
- 5
0
votes
1 answer
Bluetooth ID not same as scanned by other devices
I am working on an app that scans for nearby Bluetooth devices then checks the database if the user is present with Bluetooth ID If it's present display it to the other user nearby.
but the issue is when the person installs the app we get the…

Belgin Jarosh
- 61
- 7