BlePeripheral.end() and .disconnect() doesn't work

Can i use the sandeep's BLE library instead curieBLE (i think not!!!)? In curieBLE actions BlePeripheral.end() and .disconnect() doesn't work. Thanks.

I tried batteryMonitor sketch with simulation of Tempsensor . I was able to disconnect and end.
Attaching screenshots.
I had not explored Sandeep’s BLE, I shall check that and update you.

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This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
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version 2.1 of the License, or (at your option) any later version.

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but WITHOUT ANY WARRANTY; without even the implied warranty of
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License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#include <CurieBle.h>

This sketch example partially implements the standard Bluetooth Low-Energy Battery service.
For more information:

/* */
BLEPeripheral blePeripheral; // BLE Peripheral Device (the board you’re programming)
BLEService batteryService(“180F”); // BLE Battery Service

// BLE Battery Level Characteristic"
BLEUnsignedCharCharacteristic batteryLevelChar(“2A19”, // standard 16-bit characteristic UUID
BLERead | BLENotify); // remote clients will be able to
// get notifications if this characteristic changes

int oldBatteryLevel = 0; // last battery level reading from analog input
long previousMillis = 0; // last time the battery level was checked, in ms

void setup() {
Serial.begin(9600); // initialize serial communication
pinMode(13, OUTPUT); // initialize the LED on pin 13 to indicate when a central is connected

/* Set a local name for the BLE device
This name will appear in advertising packets
and can be used by remote devices to identify this BLE device
The name can be changed but maybe be truncated based on space left in advertisement packet */
blePeripheral.setAdvertisedServiceUuid(batteryService.uuid()); // add the service UUID
blePeripheral.addAttribute(batteryService); // Add the BLE Battery service
blePeripheral.addAttribute(batteryLevelChar); // add the battery level characteristic
batteryLevelChar.setValue(oldBatteryLevel); // initial value for this characteristic

/* Now activate the BLE device. It will start continuously transmitting BLE
advertising packets and will be visible to remote BLE central devices
until it receives a new connection */
Serial.println(“Bluetooth device active, waiting for connections…”);

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

// if a central is connected to peripheral:
if (central) {
Serial.print("Connected to central: ");
// print the central’s MAC address:
// turn on the LED to indicate the connection:
digitalWrite(13, HIGH);

//Here must disconnect central and stop advertising

// check the battery level every 200ms
// as long as the central is still connected:
while (central.connected()) {
long currentMillis = millis();
// if 200ms have passed, check the battery level:
if (currentMillis - previousMillis >= 200) {
previousMillis = currentMillis;

// when the central disconnects, turn off the LED:
digitalWrite(13, LOW);
Serial.print("Disconnected from central: ");

void updateBatteryLevel() {
/* Read the current voltage level on the A0 analog input pin.
This is used here to simulate the charge level of a battery.
int battery = analogRead(A0);
int batteryLevel = map(battery, 0, 1023, 0, 100);

if (batteryLevel != oldBatteryLevel) { // if the battery level has changed
Serial.print("Battery Level % is now: "); // print it
batteryLevelChar.setValue(batteryLevel); // and update the battery level characteristic
oldBatteryLevel = batteryLevel; // save the level for next comparison