I try to write with my MIT innovate app to the MKR 1010 Arduino and somewhere I've an issue: the writing doesn't works.

I add characteristics (BLERead | BLEWrite) on the services and show the count services I've 0 charateristics display.

I think this is the issue. this is the code : (use the led exemple) `

include

BLEService ledService("19B10000-E8F2-537E-4F6C-D104768A1214"); // BLE LED Service

// BLE LED Switch Characteristic - custom 128-bit UUID, read and writable by central BLEByteCharacteristic switchCharacteristic("19B10001-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite);

const int ledPin = LED_BUILTIN; // pin to use for the LED

void setup() { Serial.begin(9600); while (!Serial);

// set LED pin to output mode pinMode(ledPin, OUTPUT);

// begin initialization if (!BLE.begin()) { Serial.println("starting BLE failed!");

while (1);

}

// set advertised local name and service UUID: BLE.setLocalName("LED"); BLE.setAdvertisedService(ledService);

// add the characteristic to the service ledService.addCharacteristic(switchCharacteristic);

// add service BLE.addService(ledService);

// set the initial value for the characeristic: switchCharacteristic.writeValue(0);

// start advertising BLE.advertise();

Serial.println("BLE LED Peripheral"); }

void loop() { // listen for BLE peripherals to connect: BLEDevice central = BLE.central();

// if a central is connected to peripheral: if (central) { Serial.print("Connected to central: "); // print the central's MAC address: Serial.println(central.address());

// while the central is still connected to peripheral:
while (central.connected()) {
  // if the remote device wrote to the characteristic,
  // use the value to control the LED:
  if (switchCharacteristic.written()) {
    if (switchCharacteristic.value()) {   // any value other than 0
      Serial.println("LED on");
      digitalWrite(ledPin, HIGH);         // will turn the LED on
    } else {                              // a 0 value
      Serial.println(F("LED off"));
      digitalWrite(ledPin, LOW);          // will turn the LED off
    }
  }
}

// when the central disconnects, print it out:
Serial.print(F("Disconnected from central: "));
Serial.println(central.address());

} }`

and my MIT invetor app :

arduino-libraries / ArduinoBLE

write into the mkr 1010, no output #98

include