监听蓝牙的数据可以用on('BLECharacteristicChange')订阅蓝牙低功耗设备的特征值变化事件:https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-bluetooth-ble-V5\#onblecharacteristicchange写入数据可以用writeCharacteristicValue向低功耗蓝牙设备写入特定的特征值:https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-bluetooth-ble-V5\#writecharacteristicvalue
监听蓝牙的数据可以用on('BLECharacteristicChange')订阅蓝牙低功耗设备的特征值变化事件:https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-bluetooth-ble-V5\#onblecharacteristicchange
写入数据可以用writeCharacteristicValue向低功耗蓝牙设备写入特定的特征值:https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/js-apis-bluetooth-ble-V5\#writecharacteristicvalue