请问有没有人用过FastBle，我想输入0xAA 0x01 len ble_cmd_0x01_t cs这个命令，使用Fastble是直接输入0x01吗

,这个写入操作

             String hex = et.getText().toString();
                        hex = "0xAA 0x01 len ble_cmd_0x01_t cs";
                        if (TextUtils.isEmpty(hex)) {
                            return;
                        }
                        BleManager.getInstance().write(
                                bleDevice,
                                characteristic.getService().getUuid().toString(),
                                characteristic.getUuid().toString(),
                                HexUtil.hexStringToBytes(hex),
                                new BleWriteCallback() {

                                    @Override
                                    public void onWriteSuccess(final int current, final int total, final byte[] justWrite) {
                                        runOnUiThread(new Runnable() {
                                            @Override
                                            public void run() {
                                                addText(txt, "write success, current: " + current
                                                        + " total: " + total
                                                        + " justWrite: " + HexUtil.formatHexString(justWrite, true));
                                            }
                                        });
                                    }

                                    @Override
                                    public void onWriteFailure(final BleException exception) {
                                        runOnUiThread(new Runnable() {
                                            @Override
                                            public void run() {
                                                addText(txt, exception.toString());
                                            }
                                        });
                                    }
                                });