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Question about the connection of device

See original GitHub issue

Hi, i’m trying to use this library for my application. I follow the guide on your site (https://www.polidea.com/blog/ReactNative_and_Bluetooth_to_An_Other_level/ ) I managed to make the connection with the device but when I try to get the notification depending on the uuid I get this kind of error “ERROR: Service 0000F0F1-0000-1000-8000-00805F9B34FB for device ? not found” Now i don’t understand how to do with the the notification (the service number is right. ) Thank you.

This is the code:

export default class Main extends Component {
  constructor() {
    super();
    this.manager = new BleManager()
    this.state = {info: "", values: {}}
    this.prefixUUID = "0000F0F"
    this.suffixUUID = "-0000-1000-8000-00805F9B34FB"
    this.sensors = {
      1: "Accelerometer",
      2: "Humidity",
      3: "Magnetometer",
      4: "Barometer",
      5: "Gyroscope"
    }

    }

  serviceUUID(num) {
      return this.prefixUUID + num  + this.suffixUUID
    }

  notifyUUID(num) {
      return this.prefixUUID + num + this.suffixUUID
    }
writeUUID(num) {
      return this.prefixUUID + num + this.suffixUUID
    }

scanAndConnect(){
      this.manager.startDeviceScan(null, null, (error, device) => {
        if (error) {
            return
        }
        let model = '0030'; // this is an example
        if (device.name == this.model_dx(model)  ) {
          this.manager.stopDeviceScan();
          device.connect()
            .then((device) => {
              this.info("Discovering services and characteristics ")
              return device.discoverAllServicesAndCharacteristics()
            })
            .then((device) => {
              this.info("Setting notifications")
              return this.setupNotifications(device)

            })
            .catch((error) => {
              this.error(error.message)
            });
        }

      });
    }

async setupNotifications(device) {
    for (const id in this.sensors) {
      const service = this.serviceUUID(id)
      const characteristicW = this.writeUUID(id)
      const characteristicN = this.notifyUUID(id)

      const characteristic = await device.readCharacteristicForService(service, characteristicN)
      device.monitorCharacteristicForService(service, characteristicN, (error, characteristic) => {
        if (error) {
          this.error(error.message)
          return
        }
        this.updateValue(characteristic.uuid, characteristic.value)
      })
    }
  }
........
.......


    render() {
       return (
         <View>
           <Text>{this.state.info}</Text>
           {Object.keys(this.sensors).map((key) => {
          return <Text key={key}>
                   {this.sensors[key] + ": " + (this.state.values[this.notifyUUID(key)] || "-")}
                 </Text>
        })}
         </View>
       )
     }