Error: Try to update device name using BleClient.write()

[Sathishkumar-ideas2IT]

I am attempting to change the device name with the @capacitor-community/bluetooth-le library. However, when I enter a string value, the device does not properly interpret it. It works with integer numbers.

This issue does not occur when using the Cordova BLE plugin. The same device name update works fine with Cordova but fails with this Capacitor library.
Could you please give me any suggestions?

switch (characteristic.dataType.toLowerCase()) {
case "int32_t": {
const value = parseInt(inputValue);
if (isNaN(value)) {
setError("Please enter a valid number");
return;
}
// Create a DataView for 32-bit integer
const buffer = new ArrayBuffer(4);
const dataView = new DataView(buffer);
dataView.setInt32(0, value, true); // true for little-endian

      await BleClient.write(
        deviceId,
        serviceUUID,
        characteristic.uuid,
        dataView
      );
      break;
    }
    case "string": {
      // Try with null terminator if needed
      const encoder = new TextEncoder();
      const uint8Array = encoder.encode(inputValue);
      const dataView = numbersToDataView(Array.from(uint8Array));
      
      // Alternative: Try with response if without response fails
      try {
        await BleClient.write(
          deviceId,
          serviceUUID,
          characteristic.uuid,
          dataView
        );
      } catch (writeError) {
        await BleClient.writeWithoutResponse(
          deviceId,
          serviceUUID,
          characteristic.uuid,
          dataView
        );
      }
      console.log("Final DataView:", {
        buffer: dataView.buffer,
        byteLength: dataView.byteLength,
        byteOffset: dataView.byteOffset
      });
      break;
    }
    default:
      setError("Unsupported characteristic type");
      return;
  }

[peitschie]

Hi @Sathishkumar-ideas2IT

What does your equivalent working code look like with the Cordova BLE plugin?

Also, what does the device interpret the values incorrectly as?